Lung weight estimation with postmortem CT in forensic cases
| Autor: | Shigeki Jin, Hideki Hyodoh, Sahar Almansoori, Minyo Shao, Nahoko Okuya, Kotaro Matoba, Manabu Murakami, Lisa Ishida, Emi Fujita, Tomoko Matoba, Mayumi Yamase, Atsuko Saito |
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| Rok vydání: | 2018 |
| Předmět: |
Adult
Male Adolescent Autopsy 030218 nuclear medicine & medical imaging Pathology and Forensic Medicine Young Adult 03 medical and health sciences 0302 clinical medicine medicine Humans Lung volumes 030216 legal & forensic medicine Fluid accumulation Lung Aged Aged 80 and over business.industry Postmortem ct Organ Size Forensic Medicine Middle Aged respiratory system Lung weight respiratory tract diseases Forensic science Issues ethics and legal aspects medicine.anatomical_structure Postmortem Changes Regression Analysis Female Tomography X-Ray Computed Nuclear medicine business Forensic autopsy |
| Zdroj: | Legal Medicine. 35:61-65 |
| ISSN: | 1344-6223 |
| Popis: | Postmortem computed tomography (CT) is a minimally invasive technique to examine internal organs before a forensic autopsy. The purpose of our study was to estimate lung weight in a forensic setting in cases of various lung states, including fluid accumulation (congestion, edema, hypostasis, and inflammation etc.) using postmortem CT. From January 2016 to July 2018, 111 deceased bodies (62 males and 59 females, aged from 18 to 95 (average 59.6) years) were examined by CT before autopsy. Both lungs of the 111 deceased were analyzed separately, making it a total of 222 samples. We extracted lung fields from CT images manually after semi-automatic detection using an image workstation. The total lung volume and 6 categories of lung volume divided according to their CT density were measured. Multiple regression analysis was performed with lung weight in autopsy as the response variable, while the 6 categories were labelled as explanatory variables. The relation between lung weight in autopsy and lung weight estimated using postmortem CT showed a high Pearson’s correlation coefficient (R2 = 0.9106). Using postmortem CT, the lung weight can be estimated in forensic settings. |
| Databáze: | OpenAIRE |
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