Estimation of postmortem time based on aorta narrowing in CT imaging.
Estimation of postmortem time based on aorta narrowing in CT imaging.
复制标题
基于 CT 成像中主动脉狭窄的死后时间估计。
DOI：
10.1016/j.jflm.2013.09.026
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发表时间：
2013
影响因子：
1.5
通讯作者：
H. Ikegaya
中科院分区：
文献类型：
--
作者：
N. Ishikawa;Atsushi Nishida;Daisuke Miyamori;T. Kubo;H. Ikegaya
法医学中的计算机断层扫描（CT）通常用于确定死因。在这里，我们表明，CT提供的信息也可能是有价值的估计死亡后的时间。本文报告140例腹主动脉膈下段狭窄与死亡时间的关系。主动脉狭窄使用扁平率定义，扁平率通过主动脉的短轴除以长轴计算。死亡后的时间分为6个时间段。扁平率随着死后时间的增加逐渐显著降低，显示主动脉随着死后时间的增加而变窄。在15例尸检病例中进一步检查主动脉狭窄，其中在两个死后时间拍摄CT图像，得到了类似的结果。这项研究的结果表明，主动脉狭窄在死后CT成像可用于估计死亡后的时间。
Computed tomography (CT) in forensic medicine is commonly used in determination of cause of death. Here, we show that the information provided by CT may also be of value for estimation of time after death. The relationship between abdominal aorta narrowing just below the diaphragm and time after death was examined in 140 cases. Aorta narrowing was defined using a flatness ratio, which was calculated by dividing the shorter axis of the aorta by the longer axis. Time after death was classified into 6 time periods. The flatness ratio gradually and significantly decreased with increased postmortem time, showing increased aorta narrowing with increased time after death. A further examination of aorta narrowing in 15 autopsy cases in which CT images were taken at two postmortem times gave similar findings. The results of the study suggest that aorta narrowing in postmortem CT imaging may be used to estimate time after death.
影响因子：
4.6
作者：
S. Glagov;C. Zarins;D. Giddens;D. Ku
通讯作者：
S. Glagov;C. Zarins;D. Giddens;D. Ku