RT Journal Article
SR Electronic
T1 Customized 3D Bolus Applied to the Oral Cavity and Supraclavicular Area for Head and Neck Cancer
JF In Vivo
JO In Vivo
FD International Institute of Anticancer Research
SP 579
OP 584
DO 10.21873/invivo.12294
VO 35
IS 1
A1 SEUNGHYEOP BAEK
A1 SOHYUN AHN
A1 EUNBIN JU
A1 NURI HYUN JUNG
YR 2021
UL http://iv.iiarjournals.org/content/35/1/579.abstract
AB Background/Aim: In this study, a new method to create a customized three-dimensional (3D) bolus by accurately considering the anatomy of an individual patient is demonstrated. Patients and Methods: A 3D bolus structure was created from an extended planning target volume (PTV) to reduce an inevitable skin reaction. In addition, during computed tomography simulation in patients with oral cavity cancers, a balloon was inserted into the mouth of a patient to secure space, and then the area surrounding the balloon was designed into a 3D bolus structure. Results: For patients with head and neck cancers, a customized 3D bolus can reduce the unnecessary skin dose by 14.4% compared to a commercial bolus. For patients with oral cavity cancer, the PTV and tongue doses were 93.8% and 8% of the prescribed dose, respectively. Conclusion: The customized 3D bolus enables effective skin sparing and full coverage of the target area.