Treatment robustness of total body irradiation with volumetric modulated arc therapy

Publication date

2024-01

Authors

Seravalli, EnricaORCID 0000-0001-5983-2256ISNI 0000000047208248
Willemsen-Bosman, Mirjam
Zoetelief, Annelies
Roosenboom, Sanne
Harderwijk, Tessa
Krikke, Lean
Bol, G HORCID 0000-0002-7393-167XISNI 0000000392489626
Kotte, A. N. T. J.ISNI 0000000395467270
Huijboom, Eline
van Loon, Karel

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Document Type

Article

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Abstract

This study evaluated the robustness of multi-isocenter Volumetric Modulated Arc Therapy Total Body Irradiation dose distribution in the overlapping region between the head-first and feet-first computed tomography scans, considering the longitudinal isocenter shifts recorded during treatment delivery. For 15 out of 22 patients, the dose distribution in the overlapping region fulfilled all three the robustness criteria. The overlapping region dose distribution of the remaining 7 cases fulfilled two robustness criteria. The dose distribution was found to be robust against daily recorded longitudinal isocenter shifts, as a consequence of the patient position verification procedure, of up to 16 mm.

Keywords

Conformal radiotherapy techniques, Junction, Patient position verification, Robustness, TBI, Total body irradiation, VMAT, Radiation, Oncology, Radiology Nuclear Medicine and imaging

Citation

Seravalli, E, Willemsen-Bosman, M, Zoetelief, A, Roosenboom, S, Harderwijk, T, Krikke, L, Bol, G, Kotte, A, Huijboom, E, van Loon, K & Hoeben, B 2024, 'Treatment robustness of total body irradiation with volumetric modulated arc therapy', Physics and Imaging in Radiation Oncology, vol. 29, 100537. https://doi.org/10.1016/j.phro.2024.100537