Comparison of CT Values between Thrombus and Postmortem Clot Based on Cadaveric Pulmonary Angiography.
- Author:
Zhi-Ling TIAN
1
;
Ruo-Lin WANG
2
;
Jian-Hua ZHANG
1
;
Ping HUANG
1
;
Zhi-Qiang QIN
1
;
Zheng-Dong LI
1
;
He-Wen DONG
1
;
Dong-Hua ZOU
1
;
Mao-Wen WANG
1
;
Zhuo LI
1
;
Lei WAN
1
;
Xiao-Tian YU
1
;
Ning-Guo LIU
1
Author Information
- Publication Type:Journal Article
- Keywords: CT value; forensic pathology; postmortem CT pulmonary angiography; postmortem clot; pulmonary thromboembolism; virtual autopsy
- MeSH: Humans; Autopsy; Thrombosis; Pulmonary Embolism/diagnostic imaging*; Tomography, X-Ray Computed; Angiography; Cadaver
- From: Journal of Forensic Medicine 2023;39(1):7-12
- CountryChina
- Language:English
-
Abstract:
OBJECTIVES:To 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.
METHODS:Postmortem 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.
RESULTS:The 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).
CONCLUSIONS:CT 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.
