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International Journal of Legal Medicine

, Volume 127, Issue 3, pp 639–652 | Cite as

Multi-phase postmortem CT angiography: recognizing technique-related artefacts and pitfalls

  • C. BruguierEmail author
  • P. J. Mosimann
  • P. Vaucher
  • A. Uské
  • F. Doenz
  • C. Jackowski
  • P. Mangin
  • S. Grabherr
Original Article

Abstract

Background and purpose

Multi-phase postmortem CT angiography (MPMCTA) is increasingly being recognized as a valuable adjunct medicolegal tool to explore the vascular system. Adequate interpretation, however, requires knowledge about the most common technique-related artefacts. The purpose of this study was to identify and index the possible artefacts related to MPMCTA.

Material and methods

An experienced radiologist blinded to all clinical and forensic data retrospectively reviewed 49 MPMCTAs. Each angiographic phase, i.e. arterial, venous and dynamic, was analysed separately to identify phase-specific artefacts based on location and aspect.

Results

Incomplete contrast filling of the cerebral venous system was the most commonly encountered artefact, followed by contrast agent layering in the lumen of the thoracic aorta. Enhancement or so-called oedematization of the digestive system mucosa was also frequently observed.

Conclusion

All MPMCTA artefacts observed and described here are reproducible and easily identifiable. Knowledge about these artefacts is important to avoid misinterpreting them as pathological findings.

Keywords

Postmortem CT Postmortem angiography Artefacts Forensic radiology Minimally invasive autopsy 

Notes

Acknowledgments

This study was financially supported by the Promotion Agency for Innovation of the Swiss Confederation (KTI Nr.10221.1 PFIW-IW) and by the Fondation Leenaards, Lausanne, Switzerland.

Conflicts of interest

The authors have no conflicts of interest to disclose.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • C. Bruguier
    • 1
    • 2
    Email author
  • P. J. Mosimann
    • 2
  • P. Vaucher
    • 3
  • A. Uské
    • 2
  • F. Doenz
    • 2
  • C. Jackowski
    • 4
  • P. Mangin
    • 1
  • S. Grabherr
    • 1
  1. 1.University Centre of Legal Medicine, Lausanne–Geneva, University Hospital of LausanneLausanneSwitzerland
  2. 2.Department of Diagnostic and Interventional RadiologyUniversity Hospital of LausanneLausanneSwitzerland
  3. 3.University Centre of Legal Medicine, Lausanne–Geneva, University of GenevaGeneva 4Switzerland
  4. 4.Center for Forensic Imaging, Institute of Forensic MedicineUniversity of BernBernSwitzerland

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