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Estimating normal lung weight measurement using postmortem CT in forensic cases

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Title: Estimating normal lung weight measurement using postmortem CT in forensic cases
Authors: Matoba, Kotaro Browse this author →KAKEN DB
Hyodoh, Hideki Browse this author →KAKEN DB
Murakami, Manabu Browse this author
Saito, Atsuko Browse this author
Matoba, Tomoko Browse this author
Ishida, Lisa Browse this author
Fujita, Emi Browse this author
Yamase, Mayumi Browse this author
Jin, Shigeki Browse this author →KAKEN DB
Keywords: Lungs
Postmortem CT
Issue Date: Nov-2017
Publisher: Elsevier
Journal Title: Legal medicine
Volume: 29
Start Page: 77
End Page: 81
Publisher DOI: 10.1016/j.legalmed.2017.10.014
PMID: 29121618
Abstract: Purpose: The aim of this study is to estimate the lung weight using postmortem CT in well aerated lung autopsy cases. The correlation coefficients to the lung weight were also evaluated for the cadavers' height, weight, whole body surface area (WBSA), body mass index, and estimated lung volume. Materials and methods: From October 2015 to July 2016, 31 cadavers (male 12, female 19, age 20-98 (mean 66.9) y.o., postmortem interval 0.3-75.0 (5.7) days) were compared as regards body weight, height, whole body surface area (WBSA), body mass index (BMI), lung volume on CT, and total lung volume classified into several CT number categories, with their lung weight in autopsy. Results: The lung weight (mean ± SE) was 284.9 ± 14.8 g in right lung and 249.3 ± 12.9 g in left lung. The %ALV was 79.9 ± 0.9 HU (mean ± standard error (SE)) in both lungs, 80.3 ± 1.3 HU in right lung, and 77.6 ± 2.0 HU in left lung. Using a simple linear regression test, there was no statistically significant correlation between the lung weight and the categories (R2: body height 0.234, weight 0.224, WBSA 0.309, BMI 0.046, lung volume 0.059). The volume for each individual CT density category showed no significant correlation, but the stepwise regression test yielded an excellent correlation coefficient (R2 = 0.840). Conclusion: The well aerated lung weight was 284.9 ± 14.8 g in right lung and 249.3 ± 12.9 g in left lung, and the postmortem CT could estimate the lung weight with high correlation coefficient.
Type: article
Appears in Collections:医学院・医学研究院 (Graduate School of Medicine / Faculty of Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 兵頭 秀樹

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