At our institution, a Foley catheter is inserted during prostate SBRT simulation to ensure visualization of the prostatic urethra. Our goal was to find an optimal motion-robust T2-weighted pulse sequence that would allow for accurate catheter-free visualization and segmentation of the urethra. We compared Multivane XD (MVXD), a PROPELLER-based multislice TSE sequence with SENSE acceleration to single-shot TSE with SENSE (SSTSE). Two expert GU radiologists scored urethra visibility in MVXD and SSTSE series of equivalent spatial resolution and duration. Urethra visibility scores were significantly higher in the MVXD series and SNR was found to be superior in all MVXD series.
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