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

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 v...

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Detalles Bibliográficos
Autores principales: Yoshimura, Takaaki, Nishioka, Kentaro, Hashimoto, Takayuki, Fujiwara, Taro, Ishizaka, Kinya, Sugimori, Hiroyuki, Kogame, Shoki, Seki, Kazuya, Tamura, Hiroshi, Tanaka, Sodai, Matsuo, Yuto, Dekura, Yasuhiro, Kato, Fumi, Aoyama, Hidefumi, Shimizu, Shinichi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2021
Materias:
Short Communication
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8254197/
https://www.ncbi.nlm.nih.gov/pubmed/34258400
http://dx.doi.org/10.1016/j.phro.2021.03.002
Descripción
Sumario: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. Clinical trial registration: Hokkaido University Hospital for Clinical Research (018-0221).

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