Multi-phase postmortem CT angiography: recognizing technique-related artefacts and pitfalls
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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.
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.
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.
KeywordsPostmortem CT Postmortem angiography Artefacts Forensic radiology Minimally invasive autopsy
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.
- 2.Schoenmackers J (1960) Technique of postmortem angiography with reference to related methods of postmortem blood vessel demonstration [in German]. Ergebn Allg Pathol Anat 39:53–151Google Scholar
- 5.Thali M, Dirnhofer R, Vock P (eds) (2009) The virtopsy approach: 3D optical and radiological scanning and reconstruction in forensic medicine. CRC, New YorkGoogle Scholar
- 25.Anonymous (2000) Recommendation no R(99)3 of the committee of ministers to member states on the harmonization of medico-legal autopsy rules. Council of Europe, Committee of Ministers. Adopted by the Committee of Ministers on 2 February 1999 at the 658th meeting of the Ministers’ DeputiesGoogle Scholar