ArticleJournal of applied clinical medical physics2023
Anatomical changes in the male pelvis between the supine and upright positions-A feasibility study for prostate treatments in the upright position.
Article in Journal of applied clinical medical physics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Upright positioning in pediatric radiotherapy: rationale, safety considerations and a research roadmap.Technical innovations & patient support in radiation oncology · 2026Article
- Feasibility of upright carbon ion radiotherapy for prostate cancer: Dosimetric comparison between supine and upright postures.Medical physics · 2026Article
- Longitudinal CT number characterization of a novel upright CT for proton therapy planning.Journal of applied clinical medical physics · 2026Article
- Will upright radiotherapy become a new standard? STAND: Perspectives and acceptability from the global radiotherapy community.Technical innovations & patient support in radiation oncology · 2026Article
- Comparative analysis of residual setup errors in head and neck patients from upright versus supine radiotherapy postures.Medical physics · 2025Article
- A radiation therapy platform to enable upright cone beam computed tomography and future upright treatment on existing photon therapy machines.Medical physics · 2025Article
- Upright radiotherapy for breast cancer: a pre-clinical study considering photon and proton beam access, plus arm positioning.Frontiers in oncology · 2025Article
- Calculation method for novel upright CT scanner isodose curves.Journal of applied clinical medical physics · 2024Article
- Commissioning of a novel gantry-less proton therapy system.Frontiers in oncology · 2024Article
- Anatomical changes in the male pelvis between the supine and upright positions-A feasibility study for prostate treatments in the upright position.Journal of applied clinical medical physics · 2023Article
- The use of image synthesis techniques in target and roi delineation in the upright position.Journal of applied clinical medical physics · 2023Article
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Authors and funding
10 authors.
Funding
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Abstract
Treating and imaging patients in the upright orientation is gaining acceptance in radiation oncology and radiology and has distinct advantages over the recumbent position. An IRB approved study to investigate the positions and orientations of the male pelvic organs between the supine and upright positions was conducted. The study comprised of scanning 15 male volunteers (aged 55-75 years) on a 0.6 T Fonar MRI scanner in the supine and upright positions with a full bladder and in the upright position with an empty bladder. The Pelvic study revealed that in the upright position the 1. Position and shape of the prostate are not impacted significantly by bladder fill. 2. Distance between the sacrum and the anterior bladder wall is significantly smaller. 3. Anterior-Posterior length and the bladder width is significantly larger. 4. Seminal vesicles are pushed down by the bladder. 5. Top of the penile bulb is further away from the apex of the prostate. These observed differences could positively impact upright prostate treatments by 1. Reducing the risk of small bowel approximating the treatment volume. 2. Prostate treatments can be done with a reduced focus on bladder fill. 3. Radiation beams for treating intermediate risk prostrate can be made smaller or a larger portion of the seminal vesicles can be treated with the same beam size than typically used for supine treatments. 4. Reducing the average dose to the penile bulb.
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