An impact of pelvic MRI (PMRI) to radiotherapy (RT) target volumes definition in prostate cancer patients (pts). Conference Paper uri icon

abstract

  • 78 Background: PMRI is a standard pre-RT evaluation procedure in pts with intermediate and high-risk prostate cancer. We conducted a retrospective study to evaluate an influence of PMRI to delineation of RT clinical target volume (CTV). Methods: Medical records of prostate cancer pts treated with intensity-modulated RT (IMRT) in single institution retrieved and examined retrospectively. Initial risk group affiliation was defined using D'Amico method. PMRI reports of pts with intermediate and high-risk prostate cancer were reviewed and risk group affiliation was re-defined in regards of T- and N-stage. IMRT treatment plans were re-assessed. In regards to PMRI T-stage, extra-capsular extension (ECE) and seminal vesicles invasion (SVI) were included to high-dose CTV. Pelvic lymph nodes (PLN) were planned to treat in all high-risk pts. PLN considered pathological by PMRI were included to separate CTV to receive RT dose higher than unaffected PLN stations. Results: Between 2008 and 2014, 169 pts with intermedi...

publication date

  • January 1, 2015