Magnetic Resonance-Guided Reirradiation for Local Recurrence Within the Prostate or in the Prostate Bed: Preliminary Results of a Prospective Registry Study.

ABSTRACT:

Purpose

This prospective registry study evaluated the feasibility of stereotactic magnetic resonance imaging (MRI)-guided radiation therapy for the local treatment of isolated prostate cancer recurrence within the gland or prostate bed after primary radiation therapy.

Methods and materials

Patients with isolated recurrence without any regional or distant extension after treatment by external radiation therapy of the prostate gland/bed or by prostate brachytherapy were included. A 173-second Fast Imaging with Steady state Precession (TrueFISP) sequence was used for MRI simulation, and the gross tumor volume was delineated using multimodal images. The initial treatment plan varied from 27.5 Gy in 5 fractions to 38.7 Gy in 9 fractions and was adapted at each session, if necessa

SUBMITTER: Michalet M 

PROVIDER: S-EPMC8498725 | biostudies-literature | 2021 Sep-Oct

REPOSITORIES: biostudies-literature