:: Volume 21, Issue 1 (1-2023) ::
Int J Radiat Res 2023, 21(1): 153-157 Back to browse issues page
3D printed customized bolus for intensity-modulated radiotherapy in a patient with nasal radiotherapy
R. Song , W. Li
Department of Radiotherapy, Tianmen First People’s Hospital, Tianmen 431700, Hubei, China , 609987176@qq.com
Abstract:   (495 Views)
Background: The aim of the study was to compare the dose differences between 3D-printed bolus, commercial bolus (wax), thermoplastic mask bolus and bolus-free head phantoms simulating nose radiotherapy. Materials and Methods: We used 3D printing technology to make a 3D-printed bolus. To evaluate the clinical feasibility, intensity-modulated radiation therapy (IMRT) plans were created for head phantoms that were 3D-printed bolus, commercial bolus (wax), thermoplastic mask bolus or bolus-free. Dosimetry differences were compared in simulating nose radiotherapy. Results: For the PTV of all the plans, 3D-printed bolus, commercial bolus (wax) and thermoplastic masks bolus had lower Dmax and D1% than the plan without the bolus; for Dmean and D95%, the results were the opposite. For V90%, V95%, V100% and HI, the plan with the 3D-printed bolus was better than the others, and the plan without the bolus was the worst. Conclusions: The dosimetric differences of 3D-printed bolus, commercial bolus (wax), thermoplastic mask bolus and bolus-free were compared in head phantoms simulating nose radiotherapy. The 3D-printed bolus was good for fit, had a high level of comfort and repeatability, and also had better dose parameters in IMRT plans.
Keywords: 3D-printed bolus, commercial bolus, IMRT, head phantoms, Dosimetric.
Full-Text [PDF 758 kb]   (740 Downloads)    
Type of Study: Technical Note | Subject: Radiation Biology
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