ArticleTranslational cancer research2020
Effect of prone and supine treatment positions for postoperative treatment of rectal cancer on target dose coverage and small bowel sparing using intensity-modulated radiation therapy.
Article in Translational cancer research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 11 citations in OpenAlex.
- The Empty Bladder is Preferred in Some Cases of Radiation Therapy for Rectal Cancer.Advances in radiation oncology · 2025Article
- Evaluation of small bowel motion and feasibility of using the peritoneal space to replace bowel loops for dose constraints during intensity-modulated radiotherapy for rectal cancer.Radiation oncology (London, England) · 2020Article
- Assessing Axis-specific Set-up Errors in Rectal Cancer Radiotherapy: A Prospective Cone-beam Computed Tomography-Based Study with Body Mass Index Correlation.Journal of medical physicsArticle
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundTo evaluate the influence of patient positioning on target dose coverage and dose distribution to the small bowel in intensity-modulated radiation therapy (IMRT) for rectal cancer patients.
methodsTwenty-four consecutive rectal cancer patients undergoing postoperative radiation were selected and set up in either a prone or supine position. All patients received computed tomography (CT) scans before and during treatment (1-4 weeks). The CT images were defined as plan, 1W, 2W, 3W, or 4W. The plan, 1W, 2W, 3W and 4W CT images were fused. The clinical target volume (CTV) and planning target volume (PTV) delineated on the plan CT were copied onto the 1-4W CT. The treatment plans based on the plan CT were also copied onto the 1-4W CT. The target dose coverage rate was assessed. The couch-position data of the linear accelerator were acquired.
resultsFailure rates of the CTV and PTV target dose coverage were higher in the prone group than in the supine group (18.60%
conclusionsThe supine position maintained better target dose coverage and setup reproducibility in rectal cancer patients treated with IMRT. The prone position combined with the belly board can reduce the dose received by the small bowel.
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