Comparison of CT Values between Thrombus and Postmortem Clot Based on Cadaveric Pulmonary Angiography
TIAN Zhi-ling,
WANG Ruo-lin,
ZHANG Jian-hua,
HUANG Ping,
QIN Zhi-qiang,
LI Zheng-dong,
DONG He-wen,
ZOU Dong-hua,
WANG Mao-wen,
LI Zhuo,
WAN Lei,
YU Xiao-tian,
LIU Ning-guo
Affiliations
TIAN Zhi-ling
Shanghai Key Laboratory of Forensic Medicine， Key Laboratory of Forensic Medicine， Ministry of Justice， Shanghai Forensic Service Platform， Academy of Forensic Science， Shanghai 200063， China
WANG Ruo-lin
Shanghai Di’an Forensic Sciences Co.， Ltd， Shanghai 200439， China
ZHANG Jian-hua
Shanghai Key Laboratory of Forensic Medicine， Key Laboratory of Forensic Medicine， Ministry of Justice， Shanghai Forensic Service Platform， Academy of Forensic Science， Shanghai 200063， China
HUANG Ping
Shanghai Key Laboratory of Forensic Medicine， Key Laboratory of Forensic Medicine， Ministry of Justice， Shanghai Forensic Service Platform， Academy of Forensic Science， Shanghai 200063， China
QIN Zhi-qiang
Shanghai Key Laboratory of Forensic Medicine， Key Laboratory of Forensic Medicine， Ministry of Justice， Shanghai Forensic Service Platform， Academy of Forensic Science， Shanghai 200063， China
LI Zheng-dong
Shanghai Key Laboratory of Forensic Medicine， Key Laboratory of Forensic Medicine， Ministry of Justice， Shanghai Forensic Service Platform， Academy of Forensic Science， Shanghai 200063， China
DONG He-wen
Shanghai Key Laboratory of Forensic Medicine， Key Laboratory of Forensic Medicine， Ministry of Justice， Shanghai Forensic Service Platform， Academy of Forensic Science， Shanghai 200063， China
ZOU Dong-hua
Shanghai Key Laboratory of Forensic Medicine， Key Laboratory of Forensic Medicine， Ministry of Justice， Shanghai Forensic Service Platform， Academy of Forensic Science， Shanghai 200063， China
WANG Mao-wen
Shanghai Key Laboratory of Forensic Medicine， Key Laboratory of Forensic Medicine， Ministry of Justice， Shanghai Forensic Service Platform， Academy of Forensic Science， Shanghai 200063， China
LI Zhuo
Shanghai Key Laboratory of Forensic Medicine， Key Laboratory of Forensic Medicine， Ministry of Justice， Shanghai Forensic Service Platform， Academy of Forensic Science， Shanghai 200063， China
WAN Lei
Shanghai Key Laboratory of Forensic Medicine， Key Laboratory of Forensic Medicine， Ministry of Justice， Shanghai Forensic Service Platform， Academy of Forensic Science， Shanghai 200063， China
YU Xiao-tian
Shanghai Key Laboratory of Forensic Medicine， Key Laboratory of Forensic Medicine， Ministry of Justice， Shanghai Forensic Service Platform， Academy of Forensic Science， Shanghai 200063， China
LIU Ning-guo
Shanghai Key Laboratory of Forensic Medicine， Key Laboratory of Forensic Medicine， Ministry of Justice， Shanghai Forensic Service Platform， Academy of Forensic Science， Shanghai 200063， China
ObjectiveTo explore the difference in CT values between pulmonary thromboembolism and postmortem clot in postmortem CT pulmonary angiography （CTPA） to further improve the application value of virtual autopsy.MethodsPostmortem CTPA data with the definite cause of death from 2016 to 2019 were collected and divided into pulmonary thromboembolism group （n=4）, postmortem clot group （n=5）, and control group （n=5）. CT values of pulmonary trunk and left and right pulmonary artery contents in each group were measured and analyzed statistically.ResultsThe average CT value in the pulmonary thromboembolism group and postmortem clot group were （168.4±53.8） HU and （282.7±78.0） HU, respectively, which were lower than those of the control group （1 193.0±82.9） HU （P<0.05）. The average CT value of the postmortem clot group was higher than that of the pulmonary thromboembolism group （P<0.05）.ConclusionCT value is reliable and feasible as a relatively objective quantitative index to distinguish pulmonary thromboembolism and postmortem clot in postmortem CTPA. At the same time, it can provide a scientific basis to a certain extent for ruling out pulmonary thromboembolism deaths.
