Prostate MRI Notes

PI-RADS grade is based on the most suspicious lesion.

Grade at most 4 lesions.

Prostate volume = Length * Width * Hieght * 0.52

If the patient has had a recent biopsy areas of hemorrhage will simulate cancer on T2 as well as DWI/ADC.

Use T1 images to help define the areas of biopsy related hemorrhage.

Pelvic lymph nodes should be described but are neither sensitive nor specific. 8mm short axis nodes are felt to be specific.