We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
An 3D Printed Individualized Bolus For Superficial Lesions Irradiation.
- Authors
Xian-shu Gao; Bo Zhao; Jinpeng Yin
- Abstract
The objective of this study was to develope a new 3D printed individualized bolus for superficial lesions with irregular surface. For pre-clinical evaluation, 3 sets of computed tomography (CT) images, with a flat bolus, a 3D-printed bolus or with no bolus, were taken in treatment position. The same PTV was contoured on each CT series. For comparion, 3 inverse intensity modulated radiation therapy(IMRT) plans were calculated using the same TPS and giving the same prescription dose. Dosimetric parameters was collected. For clinical evaluation, dosimetric parameters of 10 patients were analyzed. The electron density of the suitable material is 1.00-1.01. Dmax of PTV in the IMRT plans of no bolus, flat bolus and 3D-printed bolus were 182.9cGY, 118.9cGY and 114.8cGY, respectively. Dmean of PTV in the IMRT plans of no bolus, flat bolus and 3D-printed bolus were 146.2cGY, 107.7cGY and 104.1cGY, respectively. HI (homogeneity index) in the IMRT plans of no bolus, flat bolus and 3D-printed bolus were 0.56, 0.15 and 0.11, respectively. All cases benefit from 3D-printed bolus for its high conformity and dose uniformity (HImedian=0.06, range 0.03-0.15).5 cases of Paget's disease of penis and scrotum benifit for it's support and fixation. The 3D-printed individualized bolus for superficial lesions with irregular surface can effectively improve it's dose distribution .
- Subjects
BOLUS radiotherapy; PENIS diseases; ELECTRON density; RADIOTHERAPY; COMPUTED tomography
- Publication
Journal of Cancer Research & Therapeutics, 2017, Vol 13, pS114
- ISSN
0973-1482
- Publication type
Article