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  1. 02 情報科学
  2. 01 学術雑誌論文

Development and validation of an open-source tool for opportunistic screening of osteoporosis from hip CT images

http://hdl.handle.net/10061/0002000791
http://hdl.handle.net/10061/0002000791
38a9ab34-e124-422c-9bf4-78b82c304714
アイテムタイプ 学術雑誌論文 / Journal Article(1)
公開日 2025-02-28
タイトル
タイトル Development and validation of an open-source tool for opportunistic screening of osteoporosis from hip CT images
言語
言語 eng
キーワード
主題Scheme Other
主題 Osteoporosis
キーワード
主題Scheme Other
主題 Artificial intelligence
キーワード
主題Scheme Other
主題 Bone mineral density
キーワード
主題Scheme Other
主題 hips
キーワード
主題Scheme Other
主題 bone mineral density (BMD)
キーワード
主題Scheme Other
主題 proximal femur
キーワード
主題Scheme Other
主題 dual-energy X-ray absorptiometry
キーワード
主題Scheme Other
主題 femora
キーワード
主題Scheme Other
主題 hip surgery
キーワード
主題Scheme Other
主題 clinicians
キーワード
主題Scheme Other
主題 lesser trochanter
キーワード
主題Scheme Other
主題 correlation coefficients
資源タイプ
資源タイプ journal article
アクセス権
アクセス権 open access
著者 Uemura, Keisuke

× Uemura, Keisuke

en Uemura, Keisuke

Search repository
大竹, 義人

× 大竹, 義人

WEKO 148
e-Rad_Researcher 80349563

ja 大竹, 義人

ja-Kana オオタケ, ヨシト

en Otake, Yoshito

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Takashima, Kazuma

× Takashima, Kazuma

en Takashima, Kazuma

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Hamada, Hidetoshi

× Hamada, Hidetoshi

en Hamada, Hidetoshi

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Imagama, Takashi

× Imagama, Takashi

en Imagama, Takashi

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Takao, Masaki

× Takao, Masaki

en Takao, Masaki

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Sakai, Takashi

× Sakai, Takashi

en Sakai, Takashi

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佐藤, 嘉伸

× 佐藤, 嘉伸

WEKO 223
e-Rad_Researcher 70243219

ja 佐藤, 嘉伸

ja-Kana サトウ, ヨシノブ

en Sato, Yoshinobu

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Okada, Seiji

× Okada, Seiji

en Okada, Seiji

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Sugano, Nobuhiko

× Sugano, Nobuhiko

en Sugano, Nobuhiko

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抄録
内容記述タイプ Abstract
内容記述 Aims
This study aimed to develop and validate a fully automated system that quantifies proximal femoral bone mineral density (BMD) from CT images.

Methods
The study analyzed 978 pairs of hip CT and dual-energy X-ray absorptiometry (DXA) measurements of the proximal femur (DXA-BMD) collected from three institutions. From the CT images, the femur and a calibration phantom were automatically segmented using previously trained deep-learning models. The Hounsfield units of each voxel were converted into density (mg/cm3). Then, a deep-learning model trained by manual landmark selection of 315 cases was developed to select the landmarks at the proximal femur to rotate the CT volume to the neutral position. Finally, the CT volume of the femur was projected onto the coronal plane, and the areal BMD of the proximal femur (CT-aBMD) was quantified. CT-aBMD correlated to DXA-BMD, and a receiver operating characteristic (ROC) analysis quantified the accuracy in diagnosing osteoporosis.

Results
CT-aBMD was successfully measured in 976/978 hips (99.8%). A significant correlation was found between CT-aBMD and DXA-BMD (r = 0.941; p < 0.001). In the ROC analysis, the area under the curve to diagnose osteoporosis was 0.976. The diagnostic sensitivity and specificity were 88.9% and 96%, respectively, with the cutoff set at 0.625 g/cm2.

Conclusion
Accurate DXA-BMD measurements and diagnosis of osteoporosis were performed from CT images using the system developed herein. As the models are open-source, clinicians can use the proposed system to screen osteoporosis and determine the surgical strategy for hip surgery.
書誌情報 en : Bone & Joint Research

巻 12, 号 9, p. 590, ページ数 597, 発行日 2023-09-20
出版者
出版者 British Editorial Society of Bone and Joint Surgery
ISSN
収録物識別子タイプ EISSN
収録物識別子 2046-3758
出版者版DOI
関連タイプ isReplacedBy
識別子タイプ DOI
関連識別子 https://doi.org/10.1302/2046-3758.129.BJR-2023-0115.R1
出版者版URI
関連タイプ isReplacedBy
識別子タイプ URI
関連識別子 https://boneandjoint.org.uk/article/10.1302/2046-3758.129.BJR-2023-0115.R1
権利
権利情報Resource https://creativecommons.org/licenses/by/4.0/
権利情報 $00A9 2023 Author(s) et al. Open Access This article is distributed under the terms of the Creative Commons Attributions (CC BY 4.0) licence (https://creativecommons.org/ licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium or format, provided the original author and source are credited.
著者版フラグ
出版タイプ NA
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