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~ first established 1994 ~

about:projects

PROJECTS

PROJECT “NON-INVASIVE SCANNING METHODS IN FORENSIC MEDICINE”, INSTITUTE OF LEGAL MEDICINE, UNIVERSITY ZUERICH, 2002-

The scope of imaging projects listed here is to make non-invasive scanning methods such as magnetic resonance imaging, computed tomography, x-ray microscopy and others available for morphological examinations in forensic medicine.

3D visualization and improvement of volume data, mainly post mortem CT

  • Schweitzer W, Wildermuth S, Lanz C, Marincek B, Bär W (2002) Computertomografie von Schädelberstungsfrakturen: Verbesserte Detektion durch farbkodierte Volumenrekonstruktion. Rechtsmedizin 12/4:265 [author’s translation: computed tomography of skull burst fractures – improved detection using color coded volume reconstruction]
  • Schweitzer W, Häusler M, Dangel S, Bär W (2004) Computertomografie von Schädelberstungsfrakturen: Verbesserte Darstellung nach Entwicklung kontrastoptimaler Farbgradienten für farbkodierte Volumenrekonstruktion. Rechtsmedizin 14: 337 [author’s translation: computed tomography of skull burst fractures – improved visualisation after development of contrast optimized color gradients]
  • Schweitzer W, Nagel R, Schenk HU, Bühlmann A, Ott P, Bär W (2005) Micro-CT-Scans of gunshot wounds: visualizing gunshot residue using high-resolution volume data. Rechtsmedizin 15(4):264.
  • Schweitzer W, Nagel R, Bär W (2006) Micro-X-Ray-Tomography of gunshot wounds: threedimensional autocorrelation for better visualization of metal particles. Proceedings of the XXth Congress of International Academy of Legal Medicine, Budapest, Hungary.
  • Schweitzer W, Nagel R, Bär W (2006) Micro-CT von Einschussverletzungen: statistische Geometrie von digitalen Partikeldaten in Abhängigkeit der Schussdistanz. Rechtsmedizin 16(4): 265.
  • Schweitzer W, Bär W (2007) Bildgebende Verfahren in der Rechtsmedizin: CT-Morphologie von Kies in der Kopfhaut. Rechtsmedizin 17(4): 270.
  • Schweitzer W, Keller M, Bär W (2008) Grenzen bildgebender Verfahren in der Rechtsmedizin – 2 Fallbeispiele. Rechtsmedizin 18(4): 331.
  • Schweitzer Wolf, Bär Walter, Röhrich Emil (2009) Visualization of skull burst fractures on CT using special color gradients for alpha blending – applications in forensic pathology. Lissabon, Portugal: IALM.
  • Voisard M, Jackowski C, Schweitzer W (2010) Weichteil- und Mediastinalemphyseme in der postmortalen Computertomographie. Rechtsmedizin 20: 309.
  • Schweitzer W, Thali M, Ruder T, Jackowski C (2011) Forensic imaging: 3D visualization of scattered particles contained in the skin by projecting their presence onto virtual body surfaces based on CT scans. Rechtsmedizin 4:388.
  • Wolf Schweitzer, Michael Thali, and Thomas Ruder. Forensic imaging: 3D visualization of scattered particles contained in the skin by projecting their presence onto virtual body surfaces based on CT scans. Rechtsmedizin, 4:388, 2011.
    [Bibtex]
    @article{schweitzer2011a,
    author={Schweitzer, Wolf and Thali, Michael and Ruder, Thomas},
    title={{Forensic imaging: 3D visualization of scattered particles contained in the skin by projecting their presence onto virtual body surfaces based on CT scans}},
    Journal="Rechtsmedizin",
       Year="2011",
       Volume="4",
       Pages="388",
    }
  • Wolf Schweitzer, Michael Thali, and Thomas D. Ruder. Forensic imaging: 3D visualization of scattered CT-dense particles contained in the skin. In Online Abstract Book of the Schweizerischer Radiologiekongress, Kongresshaus, Zürich, May 31 to June 2, 2012, page 38, 2012.
    [Bibtex]
    @InProceedings{schweitzer2012sgr2,
    author = {Schweitzer,Wolf and Thali,Michael and  Ruder, Thomas D.},
    title = {{Forensic imaging: 3D visualization of scattered
    CT-dense particles contained in the skin}},
    booktitle = {Online Abstract Book of the Schweizerischer Radiologiekongress, Kongresshaus, Z\"{u}rich, May 31 to  June 2, 2012},
    year = {2012},
    pages = {38},
    abstract={Purpose: Particles of X-ray dense material like metal, glass or rocks may
    scatter across superficial skin layers in the course of blunt trauma such as
    explosions, falls, blows, or other impacts of later interest to police investigation.
    Yet, visualizing their distribution in a way that is illustrative enough
    to aid further investigation constitutes an open problem.
    Methods and Materials: We applied visualization techniques implemented
    in IDL (Exelis VIS, Boulder, CO, USA) to a number of clinical and
    post-mortem cases (1 instance of tiny rocks impaled into the skin, 1 instance
    of explosive device derived metal particles, 1 instance of glass
    fragments). From CT data, tracing and distance calculations are used to
    map volume data information to the body isosurface. We preserve location
    but magnify size appearance.
    Results: Particle visualization massively depends on partial volume effect.
    Resulting colored 3D surfaces of the CT-derived skin can provide
    accurate and relevant visualization of tiny particles sufficiently large or CTopaque.
    In the instance of the explosion case, reconstructive conclusions
    could be made as to location and count of blows that significantly added
    to the investigation rather than merely supplementing it.
    Conclusion: Visualization of such particle distribution can be a hard indication
    for acquiring a post-mortem CT scan as it adds anatomical particle
    distribution maps which an autopsy can never document in the same way.}
    }
  • [DOI] Wolf Schweitzer, Michael Thali, and Thomas Ruder. Forensic imaging: 3D visualization of scattered CT-dense particles contained in the skin. Journal of Forensic Radiology and Imaging, 1(2):86 – , 2013.
    [Bibtex]
    @article{schweitzer2013isfri,
    title = {{Forensic imaging: 3D visualization of scattered CT-dense particles contained in the skin}},
    journal = {{Journal of Forensic Radiology and Imaging}},
    volume = "1",
    number = "2",
    pages = "86 - ",
    year = "2013",
    note = "",
    issn = "2212-4780",
    doi = "10.1016/j.jofri.2013.03.021",
    url = "http://www.sciencedirect.com/science/article/pii/S2212478013000233",
    author = "Wolf Schweitzer and Michael Thali and Thomas Ruder"
    }
  • W. Schweitzer, Thomas Ruder, Michael Thali, and Lars Ebert. Rechtsmedizinische Bildgebung: virtuelle Projektion subkutaner Gasakkumulationen auf die Haut. Rechtsmedizin, 4:310, 2013.
    [Bibtex]
    @article{schweitzer2013a,
    author={Schweitzer,W  and Ruder,Thomas and Thali,Michael and Ebert,Lars},
    title={{Rechtsmedizinische Bildgebung: virtuelle Projektion subkutaner
    Gasakkumulationen auf die Haut}},
    Journal="Rechtsmedizin",
       Year="2013",
       Volume="4",
       Pages="310",
    }
  • W. Schweitzer, TD Ruder, MJ Thali, and H. Ringl. Skull fractures in post mortem CT: VRT, flat and skin surface projections in comparison. Journal of Forensic Radiology and Imaging, 2(2):98, 2014.
    [Bibtex]
    @article{schweitzer2014isfri,
      title={{Skull fractures in post mortem CT: VRT, flat and skin surface projections in comparison}},
      author={Schweitzer, W and Ruder, TD and Thali, MJ and Ringl, H},
      journal={Journal of Forensic Radiology and Imaging},
      volume={2},
      number={2},
      pages={98},
      year={2014},
      publisher={Elsevier}
    }
  • W. Schweitzer, Michael Thali, Garyfalia Ampanozi, and Thomas Ruder. Rechtsmedizinische Bildgebung: Partikel im Fornix conjunctivae. Rechtsmedizin, 4:342, 2014.
    [Bibtex]
    @article{schweitzer2014dgrmpartikel,
    author={Schweitzer,W  and Thali,Michael and Ampanozi,Garyfalia and Ruder,Thomas},
    title={{Rechtsmedizinische Bildgebung: Partikel im Fornix conjunctivae}},
    Journal="Rechtsmedizin",
       Year="2014",
       Volume="4",
       Pages="342",
    }
  • [DOI] Wolf Schweitzer and Michael Thali. Blunt trauma to the head. Journal of Forensic Radiology and Imaging, 2(2):91, 2014.
    [Bibtex]
    @article{schweitzer2014blunt,
    title = {{Blunt trauma to the head}},
    journal = {{Journal of Forensic Radiology and Imaging}},
    volume = "2",
    number = "2",
    pages = "91",
    year = "2014",
    note = "",
    issn = "2212-4780",
    doi = "10.1016/j.jofri.2014.03.004",
    url = "http://www.sciencedirect.com/science/article/pii/S2212478014000549",
    author = "Schweitzer,Wolf and Thali,Michael"
    }
  • [PDF] [DOI] Wolf Schweitzer and Michael Thali. Computed tomography of scalp embedded gravel: Differentiation between falling and kicking. Journal of Forensic Radiology and Imaging, 2015.
    [Bibtex]
    @article{schweitzer2015computed,
    title={Computed tomography of scalp embedded gravel: Differentiation between falling and kicking},
    author={Schweitzer, Wolf and Thali, Michael},
    journal={Journal of Forensic Radiology and Imaging},
    year={2015},
    publisher={Elsevier},
    doi = {10.1016/j.jofri.2015.09.002},
    url = {http://dx.doi.org/10.1016/j.jofri.2015.09.002},
    pdf="schweitzer2015computed.pdf",
    }
  • Wolf Schweitzer, Thomas Ruder, Michael Thali, and Helmut Ringl. Skull fractures in post-mortem CT: VRT, flat and skin surface projections in comparison. Journal of Forensic Radiology and Imaging, 3(4):214-220, 2015.
    [Bibtex]
    @article{schweitzer2015ringljofri,
      title={{Skull fractures in post-mortem CT: VRT, flat and skin surface projections in comparison}},
      author={Schweitzer, Wolf and Ruder, Thomas and Thali, Michael and Ringl, Helmut},
      journal={Journal of Forensic Radiology and Imaging},
      volume={3},
      number={4},
      pages={214--220},
      year={2015},
      publisher={Elsevier}
    }
  • Wolf Schweitzer, Patricia Mildred Flach, Michael Thali, Patrick Laberke, and Dominic Gascho. Very economical immersion pump feasibility for postmortem CT angiography. Journal of Forensic Radiology and Imaging, 5:8-14, 2016.
    [Bibtex]
    @article{schweitzer2016very,
      title={Very economical immersion pump feasibility for postmortem CT angiography},
      author={Schweitzer, Wolf and Flach, Patricia Mildred and Thali, Michael and Laberke, Patrick and Gascho, Dominic},
      journal={Journal of Forensic Radiology and Imaging},
      volume={5},
      pages={8--14},
      year={2016},
      publisher={Elsevier}
    }
  • Wolf Schweitzer, Michael Thali, Rosa Maria Martinez, and Lars Ebert. Post mortem CT angiography in fetuses or newborn: very affordable pump and catheter solution. Journal of Forensic Radiology and Imaging, 2018.
    [Bibtex]
    @article{schweitzer2018post,
      title={Post mortem CT angiography in fetuses or newborn: very affordable pump and catheter solution},
      author={Schweitzer, Wolf and Thali, Michael and Martinez, Rosa Maria and Ebert, Lars},
      journal={Journal of Forensic Radiology and Imaging},
      year={2018},
      publisher={Elsevier}
    }
  • Wolf Schweitzer, Garyfalia Ampanozi, Lars Ebert, Michael Thali, and Damaris Fröhlich Knaute. Possible XOR fallacy–Case report of combined foramen sternale with an osseous sternal knife stab injury. Journal of Forensic Radiology and Imaging, 12:76-79, 2018.
    [Bibtex]
    @article{schweitzer2018possible,
      title={Possible XOR fallacy--Case report of combined foramen sternale with an osseous sternal knife stab injury},
      author={Schweitzer, Wolf and Ampanozi, Garyfalia and Ebert, Lars and Thali, Michael and Knaute, Damaris Fr{\"o}hlich},
      journal={Journal of Forensic Radiology and Imaging},
      volume={12},
      pages={76--79},
      year={2018},
      publisher={Elsevier}
    }
  • [PDF] [DOI] Wolf Schweitzer, Markus Enders, and Michael Thali. Very affordable post mortem CT angiography kit: Feasibility study using immersion pump and 3D printed parts. Journal of Forensic Radiology and Imaging, 16:11-18, 2019.
    [Bibtex]
    @article{SCHWEITZER201911,
    title = "Very affordable post mortem CT angiography kit: Feasibility study using immersion pump and 3D printed parts",
    journal = "Journal of Forensic Radiology and Imaging",
    volume = "16",
    pages = "11 - 18",
    year = "2019",
    issn = "2212-4780",
    doi = "10.1016/j.jofri.2018.12.002",
    url = "http://www.sciencedirect.com/science/article/pii/S221247801830073X",
    author = "Wolf Schweitzer and Markus Enders and Michael Thali",
    keywords = "Post mortem CT-angiography, 3D-design, 3D-printing, Forensic imaging, Virtopsy",
    abstract = "The high cost of commercial components and parts for post-mortem computed tomography angiography (PMCTA) has resulted in the development of a very low cost PMCTA-kit. It contains ubiquitous parts from hardware stores, and rapid prototyping derived models for 3D-printing. Design specifications have been tested and improved after finite-element modelling. A case study performed in using the final PMCTA kit parts for a PMCTA shows perfect vascular contrast without relevant leaks.",
    pdf="angio3dpaper_02_preprintversion.pdf",
    }

 

3D visualization of broader forensic interest

  • Schweitzer W, Häusler M, Wyler D, Radue EW, Bär W (2004) Virtuelle Realität: Illustration möglicher Kriterien für die Relevanz visuell räumlicher Darstellungen mittels Anaglyphen. Rechtsmedizin 14: 357 [author’s translation: virtual reality – illustration of possible criteria for the relevance of visually spacial representations using anaglyphs]
  • Schweitzer W, Monnier N, Bär W (2005) Reconstructing 3d models based on two orthogonal x-ray films: an affordable way to estimate shot angles or locate metal fragments. Rechtsmedizin 15(4):325.
  • Häusler M, Schweitzer W,  Bär W (2006) Computergestützte Alterung des Gesichts: Vergleich 15 bekannter Gesichter und 2 aktuelle Anwendungen. Rechtsmedizin 16(4): 256.
  • V. Martos, M. Keller-Sutter, and W. Schweitzer. Videodokumentationen begleiteter Suizidfälle durch Ersticken mittels Helium. Rechtsmedizin, 20:330, 2010.
    [Bibtex]
    @article{schweitzer2010d,
    author={Martos,V and Keller-Sutter,M and Schweitzer,W},
    title={Videodokumentationen begleiteter {S}uizidf\"{a}lle durch {E}rsticken mittels {H}elium},
    Journal="Rechtsmedizin",
       Year="2010",
       Volume="20",
       Pages="330",
    }
  • Wolf Schweitzer, Giannina Guigni, Michael Thali, and Sebastian Winklhofer. Rechtsmedizinische Bildgebung: postmortales Lungen-CT bei Hypothermie. Rechtsmedizin, 4:319, 2012.
    [Bibtex]
    @article{schweitzer2012dgrm1,
    author={Schweitzer, Wolf and Guigni,Giannina and Thali, Michael and Winklhofer,Sebastian},
    title={{Rechtsmedizinische Bildgebung: postmortales Lungen-CT bei Hypothermie}},
    Journal="Rechtsmedizin",
       Year="2012",
       Volume="4",
       Pages="319",
    }
  • Wolf Schweitzer, Michael Thali, Michelle Marti, Thomas D. Ruder, and Patrick Steinmann. Rechtsmedizinische Bildgebung: Fallbericht einer tödlichen Lungenrissverletzung nach Apnoetauchvorübungen mit postmortaler CT und regionaler CT-Angiografie. Rechtsmedizin, 4:351, 2012.
    [Bibtex]
    @article{schweitzer2012dgrm2,
    author={Schweitzer, Wolf and Thali, Michael and Marti, Michelle and Ruder, Thomas D. and Steinmann, Patrick},
    title={{Rechtsmedizinische Bildgebung: Fallbericht einer t\"{o}dlichen Lungenrissverletzung nach Apnoetauchvor\"{u}bungen mit postmortaler CT und regionaler CT-Angiografie}},
    Journal="Rechtsmedizin",
       Year="2012",
       Volume="4",
       Pages="351",
    }
  • Wolf Schweitzer, Iris Spycher, Sebastian Winklhofer, Michael J. Thali, Thomas D. Ruder, Garyfalia Ampanozi, Patricia M. Flach, and Steffen G. Ross. Assessment of laryngeal tube placement on post mortem computed tomography scans. Journal of Forensic Radiology and Imaging, 1(3):119-123, 2013.
    [Bibtex]
    @article{schweitzer2013assessment,
      title={Assessment of laryngeal tube placement on post mortem computed tomography scans},
      author={Schweitzer, Wolf and Spycher, Iris and Winklhofer, Sebastian and Thali, Michael J and Ruder, Thomas D and Ampanozi, Garyfalia and Flach, Patricia M and Ross, Steffen G},
      journal={Journal of Forensic Radiology and Imaging},
      volume={1},
      number={3},
      pages={119--123},
      year={2013},
      publisher={Elsevier}
    }
  • Wolf Schweitzer, Giannina Giugni, Michael Thali, and Sebastian Winklhofer. Postmortem Lung CT in Hypothermia — A Retrospective Age Sex matched Study. 65th Anniversary Meeting – American Academy of Forensic Sciences, Washington DC, USA, Feb 18-23, 2013, 2013.
    [Bibtex]
    @misc{schweitzer2013aafs,
    author={Schweitzer,Wolf and Giugni, Giannina and Thali, Michael and Winklhofer,Sebastian},
    title={{Postmortem Lung CT in Hypothermia -- A Retrospective Age Sex matched Study}},
    howpublished={65th Anniversary Meeting - American Academy of Forensic Sciences, Washington DC, USA, Feb 18-23, 2013},
    year="2013"
    }
  • W. Schweitzer, Michael Thali, and Lars Ebert. Analyse von Videoaufnahmen konsensueller Choke outs mit Täter/Opfer-Konstellation. Rechtsmedizin, 4:335, 2013.
    [Bibtex]
    @article{schweitzer2013b,
    author={Schweitzer,W  and Thali,Michael and Ebert,Lars},
    title={{Analyse von Videoaufnahmen konsensueller Choke
    outs mit T\"{a}ter/Opfer-Konstellation}},
    Journal="Rechtsmedizin",
       Year="2013",
       Volume="4",
       Pages="335",
    }
  • Wolf Schweitzer, Sebastian Winklhofer, Michael J. Thali, Nur Adura Yaakup, and Saiful Nizam bin Abdul Rashid. Medicolegal X-Ray and CT of standard size mobile phone cards (SIM card). Journal of Forensic Radiology and Imaging, 1(3):129-133, 2013.
    [Bibtex]
    @article{schweitzer2013medicolegal,
      title={{Medicolegal X-Ray and CT of standard size mobile phone cards (SIM card)}},
      author={Schweitzer, Wolf and Winklhofer, Sebastian and Thali, Michael J and Adura Yaakup, Nur and Nizam bin Abdul Rashid, Saiful},
      journal={Journal of Forensic Radiology and Imaging},
      volume={1},
      number={3},
      pages={129--133},
      year={2013},
      publisher={Elsevier}
    }
  • Wolf Schweitzer, Michael J. Thali, and Patricia M. Flach. Plausibility of assisted suicide by ingestion in a case of limb-girdle muscular dystrophy. Journal of Forensic Radiology and Imaging, 1(4):207-211, 2013.
    [Bibtex]
    @article{schweitzer2013plausibility,
      title={Plausibility of assisted suicide by ingestion in a case of limb-girdle muscular dystrophy},
      author={Schweitzer, Wolf and Thali, Michael J and Flach, Patricia M},
      journal={Journal of Forensic Radiology and Imaging},
      volume={1},
      number={4},
      pages={207--211},
      year={2013},
      publisher={Elsevier}
    }
  • [PDF] [DOI] Wolf Schweitzer, Michelle Marti, René Majcen, Patrick Steinmann, Michael Thali, Jürgen Fornaro, and Thomas Ruder. Lethal lung tear and coronary artery gas embolism in shallow water apnea diving exercise – PMCT, PMMRI, autopsy and histology. Journal of Forensic Radiology and Imaging , 2014.
    [Bibtex]
    @article{schweitzer2014lethallungtear,
    title = {Lethal lung tear and coronary artery gas embolism in shallow water apnea diving exercise – PMCT, PMMRI, autopsy and histology},
    journal = {Journal of Forensic Radiology and Imaging },
    volume = {},
    number = {},
    pages = {},
    year = {2014},
    note = {},
    issn = {2212-4780},
    pdf={schweitzer2014lethallungtear.pdf},
    doi = {10.1016/j.jofri.2014.06.006},
    url = {http://www.sciencedirect.com/science/article/pii/S2212478014000884},
    author = {Wolf Schweitzer and Michelle Marti and René Majcen and Patrick Steinmann and Michael Thali and Jürgen Fornaro and Thomas Ruder},
    abstract = {Abstract A 45 year old man with 10 year history of accident and incident free recreational apnea diving finished an apnea warmup exercise still apparently well, gave a thumb up, and after two breaths collapsed. No success at subsequent resuscitation attempts. Post mortem computed tomography showed two pneumatoceles, a gas filled right coronary artery and some gas in the left cardiac ventricle and aorta. There were post mortem \{MRI\} \{T2\} signal alterations in the left ventricle׳s posterior wall. Sinuses were normal. At autopsy, subpleural hemorrhages were found on both lungs with a predominance of lobe edges, indicative of mechanical strain as in mechanical breathing suppression or suffocation. Selective post mortem \{CT\} angiography of the right lung veins revealed extensive intra-alveolar leakage of contrast agent into the middle lobe, but not into the upper or lower lobes. Histology showed that fibrotic tissue and elastic fibers were not increased or decreased across lobes. The right middle lobe also contained numerous siderophages. So this is a case of recurrent pulmonary barotrauma with arterial gas embolism to the right coronary artery. This is the first case where consequences of lung pressure or barotrauma acquired at water surface by apnea as such could be documented at autopsy. }
    }
  • [PDF] [DOI] Wolf Schweitzer, Michael Thali, Giannina Giugni, and Sebastian Winklhofer. Postmortem pulmonary CT in hypothermia. Forensic Science Medicine and Pathology, pages 1-13, 2014.
    [Bibtex]
    @article{swiss2014hypoth,
      title={{Postmortem pulmonary CT in hypothermia}},
      author={Schweitzer, Wolf and Thali, Michael and Giugni, Giannina and Winklhofer, Sebastian},
    doi={10.1007/s12024-014-9611-2},
      journal={{Forensic Science Medicine and Pathology}},
      pages={1-13},
      year={2014},
      publisher={Springer},
    pdf={swiss2014hypoth.pdf}
    }
  • W. Schweitzer, Michael Thali, and Thomas Ruder. Rechtsmedizinische Bildgebung: Single-Plane-Charakterisierung von Schädel-CT als Strategie zur effizienteren formvergleichenden Identifizierung. Rechtsmedizin, 4:360, 2014.
    [Bibtex]
    @article{schweitzer2014dgrmsingleplane,
    author={Schweitzer,W  and Thali,Michael and Ruder,Thomas},
    title={{Rechtsmedizinische Bildgebung: Single-Plane-Charakterisierung von Sch\"{a}del-CT als Strategie zur effizienteren formvergleichenden Identifizierung}},
    Journal="Rechtsmedizin",
       Year="2014",
       Volume="4",
       Pages="360",
    }
  • Wolf Schweitzer. Getting a virtual grasp on the virtual grasp: Virtually inside a myoelectric prosthetic arm. Journal of Forensic Radiology and Imaging, 2014.
    [Bibtex]
    @article{schweitzer2014virtualgrasp,
    title = {Getting a virtual grasp on the virtual grasp: Virtually inside a myoelectric prosthetic arm},
    journal = {Journal of Forensic Radiology and Imaging},
    year = {2014},
    author = {Schweitzer,Wolf}
    }
  • [DOI] Wolf Schweitzer, Sabine Franckenberg, and Sebastian Eggert. Porca miseria. Journal of Forensic Radiology and Imaging, page – , 2014.
    [Bibtex]
    @article{schweitzer2014porcamiseria,
    title = {{Porca miseria}},
    journal = {{Journal of Forensic Radiology and Imaging}},
    volume = "",
    number = "0",
    pages = " - ",
    year = "2014",
    note = "",
    issn = "2212-4780",
    doi = "10.1016/j.jofri.2014.07.007",
    url = "http://www.sciencedirect.com/science/article/pii/S2212478014001026",
    author = "Schweitzer,Wolf and  Franckenberg,Sabine and  Eggert,Sebastian"
    }

 

Cardiac conduction system

  • Schweitzer W, Faber C, Haase A, Bär W (2002) Nichtinvasive Untersuchung des Erregungsleitungssystems des Menschen – Pilotstudie an einem 17.6-TESLA Widebore Mikro MR-Scanner. Rechtsmedizin 12/4:301 [author’s translation: non invasive examination of the human cardiac conduction system – pilot study using a 17.6T widebore micro mr-scanner]
  • Steffen C, Schaepman M, Hardmeier T, Schweitzer W (2004) Digital 3D reconstruction of two parahissian accessory bundles in a case of Wolff-Parkinson-White syndrome. Int J Legal Med 118: 101-105

Surface scanning, shape matching

  • Schweitzer W, Schaepman M Bär W (2003) Geometrie von virtuellen Oberflächen: Darstellung der Passgenauigkeit durch Berechnung einer farbkodierten Fehleroberfläche. Rechtsmedizin 13:259
  • Häusler M, Schweitzer W, Braun M, Brüschweiler W, Bär W (2004) Passgenauigkeits-Bestimmungen mit farbkodierten Fehleroberflächen. Rechtsmedizin 14: 357
  • Schweitzer W, Martinez R, Häusler M, Bär W (2004) „Morphologischer Fingerprint“: Merkmalskombinationen als Methode zur statistischen Zuordnung von Hautverletzungen zu einem Tatwerkzeug oder einer Oberfläche. Rechtsmedizin 14: 359 [author’s translation:morphological fingerprint – feature combination as method for statistically matching skin injuries to injury cause (e.g. tool, surface)]
  • Häusler M, Bär W, Schweitzer W (2005) Visualisation of injury-weapon-matching using color-coded 3D error surfaces: Measures of fit and automatic fitting. Rechtsmedizin 15(4):264.
  • Häusler M, Schweitzer W, Bär W (2006) Methodic improvements of the videosuperimposition for the identification of skulls based on photos. Proceedings of the XXth Congress of International Academy of Legal Medicine, Budapest, Hungary.
  • Röhrich E, Schweitzer W, Bär W (2007) Bildgebende Verfahren in der Rechtsmedizin: Eigenschaftsvektoren zur Klassifizierung von dreidimensionalen Wundformen am Modell. Rechtsmedizin 17(4):271.
  • Schweitzer W, Röhrich E, Bär W (2007) Bildgebende Verfahren in der Rechtsmedizin: Performance-Vergleich von Procrustes-Analyse und Shape-Vektoren bei der biometrischen Identifikation von Fingern. Rechtsmedizin 17(4):253.
  • Röhrich E, Bär W, Schweitzer W (2008) Bildgebende Verfahren in der Rechtsmedizin: Eigenschaftsvektoren zur Klassifizierung von dreidimensional digitalisierten Wunden. Rechtsmedizin 18(4): 331.
  • Schweitzer W, Bär W, Röhrich E (2009) Bildgebende Verfahren in der Rechtsmedizin: automatische Klassifizierung von postmortalen CT Lungenbefunden mittels statistischer Geometrie. Rechtsmedizin 19:300.
  • Röhrich E, Bär W, Schweitzer W (2009) Bildverarbeitung in der Rechtsmedizin: Klassifizierung dreidimensionaler Modelle von echten Hautverletzungen mittels statistischer Geometrie. Rechtsmedizin 19:301.
  • Röhrich E, Bär W, Schweitzer W (2009) 3D surface models of skin injuries: examples of shape vectors for classification using curvature derivatives and slice curves. Lissabon, Portugal: IALM.
  • Schweitzer W, Jackowski C, Röhrich E, Bär W (2010) Bildgebende Verfahren in der Rechtsmedizin: automatische Altersschätzung anhand der CT-Morphologie der Humeruskopfspongiosa. Rechtsmedizin 20: 335.
  • Röhrich E, Jackowski C,Bär W, Schweitzer W (2010) Bildgebende Verfahren in der Rechtsmedizin: Passgenauigkeits-Bestimmungen mit farbkodierten Oberflächen (Distanz, Krümmung) bei der forensischen 3D Juxtapositionierung. Rechtsmedizin 20: 357.
  • Wolf Schweitzer, Michael Thali, and Thomas D. Ruder. Forensic imaging – Automatic classification of post-mortem lung CT findings. In Online Abstract Book of the Schweizerischer Radiologiekongress, Kongresshaus, Zürich, May 31 to June 2, 2012, page 37, 2012.
    [Bibtex]
    @InProceedings{schweitzer2012sgr1,
    author = {Schweitzer,Wolf and Thali,Michael and  Ruder, Thomas D.},
    title = {{Forensic imaging - Automatic classification of post-mortem lung
    CT findings}},
    booktitle = {Online Abstract Book of the Schweizerischer Radiologiekongress, Kongresshaus, Z\"{u}rich, May 31 to  June 2, 2012},
    year = {2012},
    pages = {37},
    }
  • [PDF] [DOI] Emil Röhrich, Michael Thali, and Wolf Schweitzer. Skin injury model classification based on shape vector analysis. BMC Medical Imaging, 12(1):32, 2012.
    [Bibtex]
    @Article{roehrich2012,
    AUTHOR = {R\"{o}hrich, Emil and Thali, Michael and Schweitzer, Wolf},
    TITLE = {Skin injury model classification based on shape vector analysis},
    JOURNAL = {BMC Medical Imaging},
    VOLUME = {12},
    YEAR = {2012},
    NUMBER = {1},
    PAGES = {32},
    URL = {http://www.biomedcentral.com/1471-2342/12/32},
    DOI = {10.1186/1471-2342-12-32},
    ISSN = {1471-2342},
    pdf={roehrich2012.pdf}
    }
  • Wolf Schweitzer, Emil Röhrich, Michael Schaepman, Michael J. Thali, and Lars Ebert. Aspects of 3D surface scanner performance for post-mortem skin documentation in forensic medicine using rigid benchmark objects. Journal of Forensic Radiology and Imaging, 1(4):167-175, 2013.
    [Bibtex]
    @article{schweitzer2013aspects,
      title={Aspects of 3D surface scanner performance for post-mortem skin documentation in forensic medicine using rigid benchmark objects},
      author={Schweitzer, Wolf and R{\"o}hrich, Emil and Schaepman, Michael and Thali, Michael J and Ebert, Lars},
      journal={Journal of Forensic Radiology and Imaging},
      volume={1},
      number={4},
      pages={167--175},
      year={2013},
      publisher={Elsevier}
    }
  • Emil Röhrich. Applying Mathematical Methods for Shapes in Forensic Pathology. Dissertation, Mathematisch-Naturwissenschaftliche Fakultät der Universität Zürich, 2014.
    [Bibtex]
    @misc{roehrichdiss,
    author = {R\"{o}hrich,Emil},
    title = {{Applying Mathematical Methods for Shapes in Forensic Pathology}},
    howpublished = {Dissertation, Mathematisch-Naturwissenschaftliche Fakult\"{a}t der Universit\"{a}t Z\"{u}rich},
    year = {2014}
    }

General contributions

  • Ulrich Weder and Wolf Schweitzer. Der Begriff der Lebensgefahr im Strafrecht. Forum Poenale, 1:25, 2017.
    [Bibtex]
    @article{weder2017lebensgefahr,
      title={{Der Begriff der Lebensgefahr im Strafrecht}},
      author={Weder, Ulrich and Schweitzer, Wolf},
      journal={Forum Poenale},
      volume={1},
      number={},
      pages={25},
      year={2017},
      publisher={}
    }
  • [PDF] Wolf Schweitzer, Michael Thali, Robert Breitbeck, and Garyfalia Ampanozi. Virtopsy. Health Management, 14(2):37, 2014.
    [Bibtex]
    @Article{virtopsycommentary2014,
    author = {Schweitzer,Wolf and Thali,Michael and Breitbeck,Robert and Ampanozi,Garyfalia},
    title = {Virtopsy},
    journal = {Health Management},
    year = {2014},
    volume = {14},
    number = {2},
    pages = {37},
    pdf={virtopsycommentary2014.pdf}
    }

PROJECT “DIGITAL AUTOPSY”, INSTITUTE OF LEGAL MEDICINE, UNIVERSITY BERN, 2000-2001

The project “Digital Autopsy” of the Institute of Legal Medicine of the University in Bern investigated the value of non- invasive imaging for Forensic Medicine.

In particular, imaging methods (Computed Tomography and Magnetic Resonance Imaging) were used to document morphology, while Magnetic Resonance Spectroscopy was employed to compare results with the known or estimated postmortem interval in different settings.

We were very successful in setting up this project.

The results that have been collected in the meantime were presented in various ways, by various people working on it.

  • Schweitzer W, Dirnhofer R, Thali M, Vock P, Scheurer E, Boesch C (1999) Project Definition of the Red Box.
  • Schweitzer W, Schaepman M, Ith M, Bruegger K, Thali M, Doernhoefer T, Tiefenthaler K, Scheurer E, Vock P, Boesch C, Dirnhofer R (2001) Evidential value of Post Mortem MRI in Forensic Pathology. Proceedings, SPIE meeting Medical Imaging 2001, Feb 18-24 in San Diego, USA.
  • Schweitzer W, Ketterer T, Stibal A, Zollinger U, Dirnhofer R (2001) Forensic analysis of clinical computed tomography in two cases of blunt head trauma. INPALMS, Melbourne (Australia).
  • Schweitzer W, Thali M, Yen K, Scheurer E, Vock P, Boesch C, Ith M, Sonnenschein M, Bruegger K, Spielvogel E, Koenigsdorfer U, Dorn R, Dirnhofer R (2001) A Case of Suicide by Knife Stab Wound to the Heart: Comparing Autopsy with Post Mortem CT and MRI. INPALMS, Melbourne (Australia).
  • Schweitzer W, Yen K, Thali M, Scheurer E, Vock P, Bösch C, Ith M, Sonnenschein M, Brügger K, Spielvogel E, Königsdorfer U, Dorn R, Dirnhofer R (2001) Virtopsy: Dokumentation von Herzbefunden bei 35 Autopsien im Vergleich mit CT und MRI. 80. Jahrestagung DGRM Interlaken.
  • Schweitzer W, Yen K, Thali M, Scheurer E, Vock P, Bösch C, Ith M, Sonnenschein M, Brügger K, Spielvogel E, Königsdorfer U, Dorn R, Dirnhofer R (2001) Virtopsy: Fallbericht Suizid durch Bruststich – Herausforderung fuer das postmortale CT und MRI. 80. Jahrestagung DGRM Interlaken.

Part of my initial work within this project dealt with visualising cardiac pathology of forensic relevance. While it was still news to say that such a perforating laceration of the base of the heart could not be easily found on CT or MR images (see above citation – poster for San Diego), it became then news to say that it is possible to visualise this laceration. The company selling IDL in Germany, Switzerland and Austria (Creaso in Gilching out of Munich, Germany) also thought this was good news on their (now defunct) news page.

The soft tissue defect shown in the 3D renderings based on CT scans (yellow arrows; Software: IDL 5.4 on a PowerMac G4 / 867 MHz – http://www.rsinc.com, http://www.apple.com) differs in appearance compared to the autopsy finding particularly due to non-invasive data acquisition being non-dynamic, whereas autopsy handling dynamically compresses, stretches or distends soft tissue.

Some other topics covered by the ‘Virtopsy’ group are:

  • Yen K, Thali MJ, Schweitzer W, Scheurer E, Vock P, Ozdoba C, Schroth G, Sonnenschein M, Boesch C, Ith M, Bruegger K, Spielvogel E, Koenigsdorfer U, Dorn R, Dirnhofer R (2001) Atrium Mortis Brain: The Utilization of Image Processing (MRI, Multi-Slice CT) to Diagnose Skull/Brain Injuries Post Mortem. INPALMS, Melbourne (Australia).
  • Thali MJ, Yen K, Schweitzer W, Scheurer E, Vock P, Ozdoba C, Schroth G, Sonnenschein M, Boesch C, Ith M, Bruegger K, Spielvogel E, Koenigsdorfer U, Dorn R, Dirnhofer R (2001) New Horizons In Forensic Radiology: Documentation and Analysis of Gunshot Victims with Postmortem Multislice Computertomography and Magnetic Resonance. INPALMS, Melbourne (Australia)
  • Yen K, Thali M, Schweitzer W, Scheurer E, Vock P, Ozdoba C, Schroth G, Sonnenschein M, Boesch C, Ith M, Brügger K, Spielvogel E, Königsdorfer U, Dorn R, Dirnhofer R (2001) Virtopsy: Postmortale MS-CT und MR-Untersuchungen nach stumpfer Gewalteinwirkung; Darstellung anhand von Verkehrsunfällen. 80. Jahrestagung DGRM Interlaken.
  • Thali M, Yen K, Schweitzer W, Kneubuehl B, Scheurer E, Vock P, Ozdoba C, Schroth G, Sonnenschein M, Ith M, Boesch C, Brügger K, Spielvogel E, Königsdorfer U, Dorn R, Dirnhofer R (2001) Virtopsy: Schuss. Postmortale Multislice-CT und MR-Untersuchung. 80. Jahrestagung DGRM Interlaken.
  • Thali M, Yen K, Schweitzer W, Kneubuehl B, Scheurer E, Vock P, Ozdoba C, Schroth G, Sonnenschein M, Ith M, Boesch C, Brügger K, Spielvogel E, Königsdorfer U, Dorn R, Dirnhofer R (2001) Virtopsy: Scharfe Gewalt, Strangulation, Hitze, Faeulnis – postmortale Multisclice-CT und MR-Untersuchung. 80. Jahrestagung DGRM Interlaken.
  • Yen K, Thali M, Schweitzer W, Scheurer E, Vock P, Ozdoba C, Schroth G, Sonnenschein M, Boesch C, Ith M, Brügger K, Spielvogel E, Königsdorfer U, Dorn R, Dirnhofer R (2001) Virtopsy: Der Einsatz bildgebender Verfahren (MR, MS-CT) zur postmortalen Diagnostik von Schaedelhirn-Verletzungen. 80. Jahrestagung DGRM Interlaken.
  • Ith M, Scheurer E, Kreis R, Yen K, Thali M, Schweitzer W, Dirnhofer R, Boesch C (2001) 1H-MR-Spektroskopie in der forensischen Medizin I: Eine neue Methode zur Schätzung der postmortalen Liegezeit. 80. Jahrestagung DGRM Interlaken.
  • Scheurer E, Ith M, Kreis R, Yen K, Thali M, Schweitzer W, Boesch C, Dirnhofer R (2001) 1H-MR-Spektroskopie in der forensischen Medizin II: eine Pilotstudie zur Todeszeitschätzung am Gehirn von Schafen und Menschen. 80. Jahrestagung DGRM Interlaken.
  • Thali MJ, Yen K, Schweitzer W, Vock P, Ozdoba C, Dirnhofer R (2003) Into the decomposed body-forensic digital autopsy using multislice-computed tomography. Forensic Sci Int. 134(2-3):109-14.
  • Thali MJ, Yen K, Schweitzer W, Vock P, Boesch C, Ozdoba C, Schroth G, Ith M, Sonnenschein M, Doernhoefer T, Scheurer E, Plattner T, Dirnhofer R (2003) Virtopsy, a new imaging horizon in forensic pathology: virtual autopsy by postmortem multislice computed tomography (MSCT) and magnetic resonance imaging (MRI)–a feasibility study. J Forensic Sci. 48(2):386-403
  • Thali MJ, Schweitzer W, Yen K, Vock P, Ozdoba C, Spielvogel E, Dirnhofer R. (2003) New horizons in forensic radiology: the 60-second digital autopsy-full-body examination of a gunshot victim by multislice computed tomography. Am J Forensic Med Pathol. 24(1):22-7.
  • Thali MJ, Yen K, Plattner T, Schweitzer W, Vock P, Ozdoba C, Dirnhofer R. (2002) Charred body: virtual autopsy with multi-slice computed tomography and magnetic resonance imaging. J Forensic Sci. 47(6):1326-31.

A dot com domain has been reserved under Virtopsy Dot Com by Professor Dirnhofer, and it looks like a brand name that is up for franchising.

Also, a Foundation has been created under http://www.virtopsy-foundation.com/.


CARDIAC PATHOLOGY: COMPARISON OF MR, MACRO AND MICRO PATHOLOGY 1997-1998

Supported by the Swiss National Science Foundation and Ciba Geigy Research Foundation, in cooperation with the Victorian Institute of Forensic Medicine and the Austin & Repatriation Medical Centre

  • Schweitzer W, Ranson D, Czuczman F, Heyward J, Schaepman M, Dangel S, Robertson S, Stella D (1998) Defining the “pink box”: A model based approach to 3D radiology and pathology using the geometric properties of anatomical structures. presented at the Annual Meeting of the Forensic Section of the Royal College of Pathologists of Australasia FRCPA 1998
  • Schweitzer W, Robertson S, Stella D, Czucman F, Schaepman M, Dangel S, Dirnhofer R (1999) Comparison of Magnetic Resonance Imaging and Cardiac Pathology in 50 Native Human Autopsy Hearts. Proceedings of the International Association of Forensic Sciences 15th Triennial Meeting, Los Angeles. * Schweitzer W, Robertson S, Fabini R, Ranson D, Cordner S, Dirnhofer R (2001) Cardiac macroscopy, microscopy and Troponin I compared to postmortem cardiac MR imaging in 50 cases. INPALMS, Melbourne (Australia).

CARDIAC PATHOLOGY IN TMRL

  • Schweitzer W, Schneider J, Maass D, Hardmeier Th (1997) Transmyokardiale Laserrevaskularisation – Histopathologische Befunde an Laserkanaelen bei 10 postoperativ verstorbenen Patienten 1 bis 18 Tage nach Behandlung mit einem CO2-Laser. Pathologe 18:374-384.
  • Schweitzer W, Maass D, Schaepman M, Wagen M, Ranson D, Hardmeier Th (1998) Digital 3D image reconstruction of ventriculocapillary communication as revealed in one case after transmyocardial laser revascularization. Pathology Research & Practice 194:65-71.
  • Schweitzer W, Dangel S, Schaepman M, Wagen M, Maass D, Cordner S, Hardmeier Th (1998) Comparison of maximal left ventricular intramyocardial artery lumen diameter in 2 aneurysmectomy specimen after TMR and 44 control patients. Lasermedizin 13:83-101.
  • Schweitzer W, Schaepman M, Schneider J, Maass D, Hardmeier Th (1998) Histological findings after TMR – conclusions for the underlying principle. in: Hetzer R (editor) Proceedings 2nd International TMR Meeting April 1997 in Berlin. Ecomed, Landsberg.
  • Schweitzer W, Maass D, Hardmeier T, Dangel S, Czuczman F, Schaepman M, Wagen M (1999) Histopathological findings in TMR. in: Okada M, ed. (1999) Current topics in TMR. Tokyo: Springer, 2001.

CARDIAC CONDUCTION SYSTEM IN SIDS

  • Schweitzer W, Schneider J, Breitbach Th, Hardmeier Th (1996) Cardiac findings in suddenly and unexpectedly died infants with respect to the cardiac conduction system. Presentation at the 75. Annual meeting of the German Society of Forensic Medicine in Zuerich/Switzerland, 27. September 1996 in Zuerich. Presentation at the annual meeting of the Swiss Society of Pathology, Meeting in Sion/Switzerland 7.-9. November 1996 in Sion/Switzerland. Publication of these results on schedule.

CARDIAC CONDUCTION SYSTEM IN FORENSIC PATHOLOGY

  • Schweitzer W, Cordner S (1999) Cardiovascular Pathology and Sudden Death. in: Freckelton I, Selby H, ed. (1999) Expert Evidence in Criminal Law. Sydney: LBC Information Services, p. 497-519 – and in: Freckelton I, Selby H, ed. (1999) Expert Evidence. Sydney: LBC Information Services (5 Vol.)

TECHNICAL BELOW ELBOW AMPUTEE ISSUES

Opinions, current updates and unreviewed own articles here.

  • Wolf Schweitzer. Improving Prosthetic Arms through Better Testing. The O and P Edge, page 96, August 2014.
    [Bibtex]
    @article{schweitzer2014oandpshapcommentary,
    title = {Improving Prosthetic Arms through Better Testing},
    journal = {The O and P Edge},
    month = {August},
    pages={96},
    year = {2014},
    author = {Schweitzer,Wolf}
    }
  • Wolf Schweitzer. Getting a virtual grasp on the virtual grasp: Virtually inside a myoelectric prosthetic arm. Journal of Forensic Radiology and Imaging, 2014.
    [Bibtex]
    @article{schweitzer2014virtualgrasp,
    title = {Getting a virtual grasp on the virtual grasp: Virtually inside a myoelectric prosthetic arm},
    journal = {Journal of Forensic Radiology and Imaging},
    year = {2014},
    author = {Schweitzer,Wolf}
    }
  • Wolf Schweitzer, Michael J. Thali, and David Egger. Case-study of a user-driven prosthetic arm design: bionic hand versus customized body-powered technology in a highly demanding work environment. Journal of Neuroengineering and Rehabilitation, 15(1):1, 2018.
    [Bibtex]
    @article{schweitzer2018casestudyprostheticarm,
      title={Case-study of a user-driven prosthetic arm design: bionic hand versus customized body-powered technology in a highly demanding work environment},
      author={Schweitzer, Wolf and Thali, Michael J and Egger, David},
      journal={Journal of Neuroengineering and Rehabilitation},
      volume={15},
      number={1},
      pages={1},
      year={2018},
      publisher={BioMed Central}
    }

 


ROUTINE WORK

Already case-based routine work involves a variety of issues, which are addressed on an individual basis. I am interested in sampling issues as well as reporting issues.

  • Report generation on location One approach we tested a while ago based on the observation that immediate reporting generates better reports than later reporting. This has been abandoned for a range of reasons, including the problem that one would have to focus on a little computer even more than one would have to focus on a big computer.
  • W. Schweitzer and Th Hardmeier. Digitale Handschrifterkennung zur Datenerfassung fur Autopsieberichte mit einem Apple Newton (TM). Pathologe, 17(5):399-401, 1996.
    [Bibtex]
    @article{schweitzer1996digitale,
      title={{Digitale Handschrifterkennung zur Datenerfassung fur Autopsieberichte mit einem Apple Newton (TM)}},
      author={Schweitzer, W and Hardmeier, Th},
      journal={{Pathologe}},
      volume={17},
      number={5},
      pages={399--401},
      year={1996},
      publisher={Berlin: Springer-Verlag.}
    }
  • Wolf Schweitzer and Thomas Hardmeier. Digitale Handschriftenerkennung zur Datenerfassung für Autopsieberichte mit einem Apple Newton. Pathologe, 17:399-402, 1996.
    [Bibtex]
    @Article{schweitzer1996,
       Author="Schweitzer,Wolf and Hardmeier, Thomas",
       Title="{Digitale {H}andschriftenerkennung zur {D}atenerfassung f\"{u}r {A}utopsieberichte mit einem {A}pple {N}ewton}",
       Journal="Pathologe",
       Year="1996",
       Volume="17",
       Pages="399-402",
    }
  • Development of information segmentation in order to facilitate report generation using relational database files (Filemaker) This project could be released as soon as we are able to find time to fork it off into a new domain. You know how some subjects need a subdomain? Consider [..] an internally developed class library that provides an individual with a significant competitive advantage in some application domain. For that individual to choose to place that library on the open market, there must be overwhelming monetary benefit to justify the risk of losing the advantage that the library provides the individual alone. […] Some of the best libraries, therefore, will never make it to the open market, but this is the right of a free market. — read: Eykholt (1998) Best of Booch. Cambridge University Press.
  • Wolf Schweitzer, Christine Bartsch, Thomas D. Ruder, and Michael J. Thali. Virtopsy approach: Structured reporting versus free reporting for PMCT findings. Journal of Forensic Radiology and Imaging, 2(1):28-33, 2014.
    [Bibtex]
    @article{schweitzer2014reporting,
      title={{Virtopsy approach: Structured reporting versus free reporting for PMCT findings}},
      author={Schweitzer, Wolf and Bartsch, Christine and Ruder, Thomas D and Thali, Michael J},
      journal={Journal of Forensic Radiology and Imaging},
      volume={2},
      number={1},
      pages={28--33},
      year={2014},
      publisher={Elsevier}
    }
  • Microscopy Technical solutions have been sought in order to combine the focused parts of several partially focussed images into one image.
  • Image storage in networked environments One possible challenge can be to find hardware and software solutions, that require the least energy possible in order to maximise on accountability, accessibility, security, platform independent integration and technical integrity. I believe that development here should draw on an open, accessible and quickly developing basis which is currently realised in form of the open source software environment.
  • CMS (Content Management Systems) for websites I was successfully running assembler, Pascal and Basic programs including self modfying code starting in 1984, a first website was established in 1994, and I started to use open source content management software since autumn 2002. Something I would do is to run such a CMS on my swisswuff website, and another part of what I’d do is helping others to get started with their own setup. The open source approach is attractive due to it’s large user base, it’s free accessibility and it’s flexible distribution policy. Users have to typically prepare content (text, images) and structure (paper sketches and flowcharts suffice). A typical “supported installation” includes (a) uploading the package on the server, (b) tweaking modules to reflect pre-defined structure, (c) tweaking theme module to approximate design requirements, and (d) filling in pre-typed content. A typical setup usually is achieved in one session (4-5 hours) if prepared properly. Later, small corrections and maintenance of the site is usually up to the end-user anyway – a hallmark of such setups. Setups that I was able to inspire in such a way and partly accompany are Spectraseis where I actually performed the initial setup myself, IRM Zuerich, and some family members, who started their own CMS sites after I had showed them how. Since CMS are really enabling users to be independent, I had to deliver no additional support in any of the instances. Since then, social and web 2.0 media literally exploded and no need to worry about these setups any longer.
  • Online Calculation Tools Online calculation tools are useful because everyone with a connection to the internet can benefit from them. In a way, they are more useful than little gadgets one can carry around. Distribution, access, and upgrades are accomplished much easier online than through any other means. Even though I’m not too much into rewriting my own CMS (there are a couple of nice ones that you can download), and I’m not too much into writing my own image gallery (there are some reasonably good ones out there), I am all for writing software that is somewhat new, or hasn’t been done in a similar way beforehand. You can have a look at my online calculators for the use in forensic medicine; I have implemented the estimation of the sex and body length adjusted heart weight according to Pearl S. Zeek. I also implemented an algorithm to solve Henssge’s bi-sigmoid shaped curve that models the cooling of a human body for an estimation of time of death; the code works straight forward, as it is a hand keyed (short, elegant, fast!) pHp-code snip which thus allows you to receive the result as fast as your internet connection allows. I did not plan to write this, but a colleague said it was not possible to do it in pHp so I felt I had to. The code was validated using the printed nomograms. People tend to forget that this is approach may provide an estimate, not a determination that is precise to the second.


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