Fig. 2

66-year old man (PSA of 9.03 ng/mL) who underwent MRI using a combined rigid two-channel phased-array endorectal coil and an external phased-array coil (ERC-PAC) (top row) and external PAC only acquisition (bottom row) with axial T2WI (a, d), DWI (b2000) (b, e) and ADC (c, f). A 15 mm PI-RADS 5 lesion (arrow) was identified in left mid-gland peripheral zone. Biopsy revealed Gleason 4 + 3 cancer in this location. Superior lesion detection and conspicuity are noted for ERC-PAC images. For this lesion, the estimated signal-to-noise (eSNR) for ERC-PAC vs. PAC alone were 11.6 vs 5.5  for T2WI and 36.3  vs 5.8 for b2000 DWI, respectively