Robust treatment planning in whole pelvis pencil beam scanning proton therapy for prostate cancer.
Med Dosim
; 45(4): 334-338, 2020.
Article
in En
| MEDLINE
| ID: mdl-32471604
ABSTRACT
Whole-pelvis pencil beam scanning (PBS) proton therapy is utilized in both the intact and post-operative settings in patients with prostate cancer. As whole pelvis prostate radiotherapy has traditionally been delivered with standard photon beams, limited evidence and technical descriptions have been reported regarding the use of proton therapy. Here we present two robust three-field treatment planning approaches utilized to maximize target coverage in the presence of anatomic and delivery uncertainties. Both techniques, conventional optimization (CO) and robust optimization (RO), create treatment plans with acceptable target coverage and sparing of organs at risk (OAR). While the RO method is less time intensive and may theoretically allow for superior OAR sparing and improved robustness, the CO method can be implemented by institutions who do not have RO capabilities.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Prostatic Neoplasms
/
Radiotherapy, Intensity-Modulated
/
Proton Therapy
Limits:
Humans
/
Male
Language:
En
Journal:
Med Dosim
Journal subject:
RADIOTERAPIA
Year:
2020
Document type:
Article