Waukesha, WI, USA). All patients were imaged in a supine position using a body
coil for excitation, and a pelvic phased-array coil (GE Healthcare; Waukesha,
WI, USA) and an endorectal coil (Medrad; Pittsburgh, PA, USA) for signal
reception. After a three-dimensional localizer scan, axial T2-weighted and
diffusion-weighted MR images were obtained. Dynamically contrast enhanced images
were also acquired. Protocol details are given in