Presentation 2021-08-27
[Short Paper] Region extraction and mass estimation of kidneys from Ai-CT
Yasushi Hirano, Remi Yamashita, Shoji Kido, Kunihiro Inai,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Autopsy imaging (Ai) is an examination method for investigating the cause of death and estimating the postmortem time. Since the weight of organs may reflect disease or pathological condition, it is useful information for investigating the cause of death. Generally, it is necessary to dissect bodies for to measuring the weight of organs, but it is difficult to obtain weight data because of low rate of dissection in Japan. In order to solve this problem, in this study, we developed a method to extract kidney regions from postmortem CT images and estimate the kidney weight from the obtained CT numbers in the kidney regions using the deep learning. As a result of evaluating accuracy of the extracted kidney region by the Dice coefficient, 0.726 ± 0.066 was obtained. The correlation coefficient between the estimated and actual kidney weights was 0.70 and an absolute error of kidney weight was 53.43[g].
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Kidney region / V-Net / Segmentation / Autopsy imaging
Paper # MI2021-24
Date of Issue 2021-08-20 (MI)

Conference Information
Committee MI
Conference Date 2021/8/27(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) Medical imaging
Chair Hidekata Hontani(Nagoya Inst. of Tech.)
Vice Chair Hideaki Haneishi(Chiba Univ.) / Takayuki Kitasaka(Aichi Inst. of Tech.)
Secretary Hideaki Haneishi(Yamaguchi Univ.) / Takayuki Kitasaka(Univ. of Hyogo)
Assistant Hotaka Takizawa(Tsukuba Univ.) / Yoshito Otake(NAIST)

Paper Information
Registration To Technical Committee on Medical Imaging
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Short Paper] Region extraction and mass estimation of kidneys from Ai-CT
Sub Title (in English)
Keyword(1) Kidney region
Keyword(2) V-Net
Keyword(3) Segmentation
Keyword(4) Autopsy imaging
1st Author's Name Yasushi Hirano
1st Author's Affiliation Yamaguchi University(Yamaguchi Univ.)
2nd Author's Name Remi Yamashita
2nd Author's Affiliation Yamaguchi University(Yamaguchi Univ.)
3rd Author's Name Shoji Kido
3rd Author's Affiliation Osaka University(Osaka Univ.)
4th Author's Name Kunihiro Inai
4th Author's Affiliation University of Fukui(Univ. of Fukui)
Date 2021-08-27
Paper # MI2021-24
Volume (vol) vol.121
Number (no) MI-164
Page pp.pp.10-11(MI),
#Pages 2
Date of Issue 2021-08-20 (MI)