Prostate MRI c. 19835. Among the first published MRI images were those above, obtained with a 0.35T coil. In the transverse scan (A), the prostate (P) is enlarged and the Foley catheter (arrow) in the prostatic urethra is displaced posteriorly to the left by adenomatous tissue. Seminal vesicles are seen inferior to the bladder (s). In the sagittal scan (B), air (A) and urine (U) level can be seen in the bladder. At the time, magnet strength was not capable of demonstrating zonal anatomy or small cancers.From Hricak H, Williams RD, Spring DB, et al. Anatomy and pathology of the male pelvis by magnetic resonance imaging. AJR. American journal of roentgenology. Dec 1983;141(6):1101-1110; with permission.