1. Effectiveness of Contrast-enhanced MR Angiography for Visualization of the Prostatic Artery prior to Prostatic Arterial Embolization
Contrast-enhanced MR angiography enables the identification of the number of prostate arteries with a sensitivity of 91.5% (97 of 106) and a positive predictive value of 100% (97 of 97).
Contrast-enhanced MR angiography reduced the prostate artery embolization procedure time, radiation exposure, and contrast medium dose during prostate artery embolization by 33.6%, 63.2%, and 37.7%, respectively.
The optimal angle for visualization of prostatic arteries was variable, between 20° and 45° in the ipsilateral anterior oblique direction; MR angiography may be useful for determining tube angles optimized for each patient.
Zhang JL et al.
Published Online: Feb 26,
Left:  MIP projection from pelvic MR angiogram.
Right:  Corresponding digital subtraction angiography.