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Simple and Rapid Creation of Customized 3-dimensional Printed Bolus Using iPhone X True Depth Camera.
Practical Radiation Oncology 2019 July
PURPOSE: Three-dimensional printing has produced customized bolus during radiation therapy for superficial tumors along irregular skin surfaces. In comparison, traditional bolus materials are often difficult to manipulate for a proper fit. Current 3-dimensional printed boluses are made from either preexisting computed tomography scans or complex surface scanning methods. Herein, we introduce an inexpensive, convenient approach to generate a 3-dimensional printed bolus from surface scanning technology available in common smartphones.
METHODS AND MATERIALS: A three-dimensional printed bolus was designed using surface scans from iPhone X true depth cameras and a low-cost 3-dimensional printer. The percentage density infill was adjusted to achieve tissue equivalence. To evaluate the clinical feasibility, fit against the skin surface and radiation dose distribution were compared with those of the traditional bolus.
RESULTS: We fabricated a customized 3-dimensional printed bolus for different areas of the face using an iPhone X camera and inexpensive commercially available 3-dimensional printer. When printed at 100% density, the bolus material approximated soft tissue/water and provided an equivalent dose distribution to that found with standard bolus materials on direct comparison. The bolus material is inexpensive and produces an ideal fit with the scanned anatomy.
CONCLUSIONS: We present a simplified method of highly customized bolus production that requires minimal experience with computer modeling programs and can be accomplished with an iPhone true depth camera.
METHODS AND MATERIALS: A three-dimensional printed bolus was designed using surface scans from iPhone X true depth cameras and a low-cost 3-dimensional printer. The percentage density infill was adjusted to achieve tissue equivalence. To evaluate the clinical feasibility, fit against the skin surface and radiation dose distribution were compared with those of the traditional bolus.
RESULTS: We fabricated a customized 3-dimensional printed bolus for different areas of the face using an iPhone X camera and inexpensive commercially available 3-dimensional printer. When printed at 100% density, the bolus material approximated soft tissue/water and provided an equivalent dose distribution to that found with standard bolus materials on direct comparison. The bolus material is inexpensive and produces an ideal fit with the scanned anatomy.
CONCLUSIONS: We present a simplified method of highly customized bolus production that requires minimal experience with computer modeling programs and can be accomplished with an iPhone true depth camera.
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