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Visualizing the urethra by magnetic resonance imaging without usage of a catheter for radiotherapy of prostate cancer

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Title: Visualizing the urethra by magnetic resonance imaging without usage of a catheter for radiotherapy of prostate cancer
Authors: Yoshimura, Takaaki Browse this author
Nishioka, Kentaro Browse this author
Hashimoto, Takayuki Browse this author
Fujiwara, Taro Browse this author
Ishizaka, Kinya Browse this author
Sugimori, Hiroyuki Browse this author
Kogame, Shoki Browse this author
Seki, Kazuya Browse this author
Tamura, Hiroshi Browse this author
Tanaka, Sodai Browse this author
Matsuo, Yuto Browse this author
Dekura, Yasuhiro Browse this author
Kato, Fumi Browse this author
Aoyama, Hidefumi Browse this author
Shimizu, Shinichi Browse this author →KAKEN DB
Keywords: Urethra-sparing radiotherapy
Magnetic resonance imaging
Prostate cancer
Issue Date: Apr-2021
Publisher: Elsevier
Journal Title: Physics and Imaging in Radiation Oncology
Volume: 18
Start Page: 1
End Page: 4
Publisher DOI: 10.1016/j.phro.2021.03.002
Abstract: The urethra position may shift due to the presence/absence of the catheter. Our proposed post-urination-magnetic resonance imaging (PU-MRI) technique is possible to identify the urethra without catheter. We aimed to verify the inter-operator difference in contouring the urethra by PU MRI. The mean values of the evaluation indices of dice similarity coefficient, mean slice-wise Hausdorff distance, and center coordinates were 0.93, 0.17 mm, and 0.36 mm for computed tomography, and 0.75, 0.44 mm, and 1.00 mm for PU MRI. Therefore, PU MRI might be useful for identifying the prostatic urinary tract without using a urethral catheter.
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)

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