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Leg Med (Tokyo). 2013 Nov;15(6):315-7. doi: 10.1016/j.legalmed.2013.07.001. Epub 2013 Aug 3.

Pitfalls in post-mortem CT-angiography--intravascular contrast induces post-mortem pericardial effusion.

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  • 1Department of Forensic Medicine and Radiology, Institute of Forensic Medicine, University of Zurich, Winterthurerstrasse 190/52, CH-8057 Zurich, Switzerland; Institute of Diagnostic and Interventional Radiology, University Hospital Zurich, Raemistrasse 100, 8091 Zurich, Switzerland. Electronic address: nicole.berger@usz.ch.

Abstract

We present a case where multi-phase post-mortem computed tomography angiography (PMCTA) induced a hemorrhagic pericardial effusion during the venous phase of angiography. Post-mortem non-contrast CT (PMCT) suggested the presence of a ruptured aortic dissection. This diagnosis was confirmed by PMCTA after pressure controlled arterial injection of contrast. During the second phase of multi-phase PMCTA the presence of contrast leakage from the inferior cava vein into the pericardial sac was noted. Autopsy confirmed the post-mortem nature of this vascular tear. This case teaches us an important lesson: it underlines the necessity to critically analyze PMCT and PMCTA images in order to distinguish between artifacts, true pathologies and iatrogenic findings. In cases with ambiguous findings such as the case reported here, correlation of imaging findings with autopsy is elementary.

Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

KEYWORDS:

Artifact; Forensic radiology; Post-mortem computed tomography angiography; Vascular injury; Virtopsy

PMID:
23916606
[PubMed - indexed for MEDLINE]
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