- 作者：Stephan A. Bolliger ; Thomas D. Ruder ; Thomas Ketterer ; Nadine Gl盲ser ; Michael J. Thali ; Garyfalia Ampanozi
- 关键词：Forensic imaging ; MSCT ; Contrast medium ; Stab channels ; Virtopsy
- 刊名：Forensic Science International
- 出版年：January, 2014
- 年：2014
- 卷：234
- 期：Complete
- 页码：45-49
- 全文大小：1324 K
Background
Instillation of contrast medium into stab wounds has shown promising results regarding visibility and assessment of general stab direction with computed tomography. However, the accuracy of this method - and, incidentally also probing of stab wounds - has to our knowledge not previously been examined. Also the effect of bluntness of different stabbing objects on the examination of stab wounds was not considered before this study.Methods
Using a pocket-knife, a steak-knife, and a Phillips screwdriver, nine stab wounds each were inflicted to three pork haunches. The depths of the stab wounds were determined by probing and multislice computed tomography (MSCT) after instillation of a contrast medium (CM) and then compared to those observed by dissection, our internal 鈥済old standard鈥?
Results
In stab wounds inflicted by knives, MSCT-CM and probing provided results which differed by roughly 10-11% from the dissection results. In screwdriver stabs MSCT-CM showed a deviation of almost 30%, probing over 33%.
Discussion
MSCT-CM is a possible alternative to layer-by-layer dissection in autopsy cases of knife stab wounds. Probing, although obsolete in post-mortem examinations, is sufficiently accurate in determining the length of a stab wound of a living person. In cases of stab wounds with blunt objects such as screwdrivers, neither MSCT-CM nor probing proved to be sufficiently accurate.
Conclusion
MSCT-CM is a possible alternative to layer-by-layer dissection in autopsy cases of knife stab wounds. Probing, although obsolete in post-mortem examinations, is sufficiently accurate in determining the length of a stab wound of a living person. In cases of stab wounds with blunt objects such as screwdrivers, neither MSCT-CM nor probing proved to be sufficiently accurate.