Is it time to change the standard of care from CT to MRI for defining the apex of the prostate to accomplish potency-sparing radiotherapy?

In this issue of the Red Journal, Dr. McLaughlin and colleagues report the findings of a rather elegant set of studies involving a “vessel-sparing protocol.” These investigators used “time-of-flight MRI angiography” to define the internal pudendal arteries (IPA) ( 1 McLaughlin PW, Narayana V, Meriowitz A, et al. Vessel sparing prostate radiotherapy: Dose limitation to critical erectile vascular structures (internal pudental artery and corpus...