ArticleJournal of applied clinical medical physics2025
Impact of bladder volume and bladder shape on radiotherapy consistency and treatment interruption in prostate cancer patients.
Article in Journal of applied clinical medical physics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Ensuring bladder volume reproducibility and reducing cone-beam computed tomography-related radiation exposure in prostate hypofractionated radiotherapy by a Certified Nurse in Radiation Oncology nursing.Journal of radiation research · 2026Article
- Associations of static anatomical geometry with planned dosimetric endpoints in prostate radiotherapy: a multicenter study.Frontiers in oncology · 2026Article
- A cone-beam computed tomography based workflow for online adaptive ultra-hypofractionated radiotherapy of prostate cancer.Physics and imaging in radiation oncology · 2025Article
- Impact of bladder volume and bladder shape on radiotherapy consistency and treatment interruption in prostate cancer patients.Journal of applied clinical medical physics · 2025Article
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Authors and funding
10 authors.
Funding
Abstract
backgroundTo investigate the effect of bladder volume (BV) and bladder shape on consistency and treatment interruption in prostate cancer radiotherapy (RT).
methodsA total of 275 patients who underwent radical prostate cancer RT in our institution from April 2015 to December 2022 were enrolled. Bladder height, bladder width, and bladder length were defined and recorded. The receiver operating characteristic (ROC) curves were used to evaluate the best cut-off point for bladder shape. Logistic regression analysis was used to analyze the relationship between setup errors and bladder shapes and BV.
resultsBased on the ROC curves for 275 patients, the bladder shapes were classified into three: (a) the elongated bladder, (b) the spherical bladder, and (c) the oval bladder. Sixty-six prostate cancer patients (1611 CBCTs) were randomly selected proportionally. It was found that bladder shape has a greater impact on setup errors than BV (BV: OR = 1.470, p = 0.037; bladder shape: OR = 2.013, p < 0.001), and the setup error of the spherical bladder in anterior-posterior (AP) direction was greater than the others (p < 0.001). In addition, the shape consistency of the spherical bladder was the worst (43.0%) during RT. Compared with the inconsistent group, the group with the same bladder shape had higher consistency in BV
conclusionsMore specific bladder filling requirements should be developed for different bladder shapes. More attention should be paid to the spherical bladder for precise RT.
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