ArticleOncotarget2017
The heterogeneous CTV-PTV margins should be given for different parts of tumors during tomotherapy.
Article in Oncotarget, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Margins of Planning Target Volume and Set-up Errors based on Megavoltage Cone-Beam CT Image Guided Radiotherapy with Helical Tomotherapy: Importance of Automatic Registration Plus Manual Registration.Journal of biomedical physics & engineering · 2026Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveThe purpose of this study was to evaluate CTV-PTV margins of tumors for tomotherapy.
methodsSetup errors were analyzed for 151 patients receiving helical tomotherapy treatment. 53 patients had head and neck tumors, 45 had thoracic tumors, 20 had abdominal tumors, and 33 had pelvic tumors. The setup errors were calculated in six directions, i.e. +X (left), -X (right), +Y (head), -Y (foot), +Z (ventral), and -Z (dorsal), after Megavoltage CT (MVCT) images were registered to simulation CT images. And then the CTV-PTV margins were calculated.
resultsThe setup errors along the +Z direction were significantly higher than that along the -Z direction (
conclusionsThe CTV-PTV margins for patients with different types of tumors were heterogeneous during tomotherapy. The individual margins of six directions should be given for those patients who accept tomotherapy.
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