Objective When superficial tumors are treated with radiotherapy, bolus may be needed to ensure adequate dose delivery to target tissue. The bolus is typically fabricated at the time of computed tomography (CT) simulation, but in many cases, creating a bolus prior to simulation can be more efficient. Therefore, we devised a workflow that would allow for 3D patient scanning at the initial consultation so that bolus can be fabricated by rapid prototyping before CT simulation. Methods A 3D-printed bolus was fabricated using surface scans of a head phantom that were obtained from a Microsoft Kinect. After processing the scans, a commercially printed 3D bolus was made. To test the feasibility and conformity of the process, masks were made for patients using the above method. Results 3D-printed bolus created using the rapid scanning technique proved to be the most conformal when compared with bolus made of VPS and SuperFlab. The printed masks also showed that they were formed fitting and comfortable to wear. Conclusion We present a new workflow that combines current known methods of both rapidly scanning a patient's surface and the subsequent rapid creation of bolus that then increases bolus conformity, improves comfort and the patient experience, reduces simulation time, and may decrease exposure to radiation.
Purpose A bolus is usually required to ensure radiation dose coverage of extensive superficial tumors of the scalp or skull. Oftentimes, these boluses are challenging to make and are nonreproducible, so an easier method was sought. Methods and Materials Thermoplastic sheets are widely available in radiation oncology clinics and can serve as bolus. Two template cutouts were designed for anterior and posterior halves to encompass the cranium of children and adults. Results The created bolus was imaged using computed tomography, which demonstrated good conformity and minimal air gaps. Conclusions Although making a bolus for treating superficial tumors of the scalp or head and neck is challenging, the presented technique enables thermoplastic to be used as a bolus and is quick, easy, and reproducible.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.