Carcinoma of the prostate gland: MR imaging with pelvic phased-array coils versus integrated endorectal--pelvic phased-array coils. Academic Article uri icon

Overview

abstract

  • PURPOSE: To compare the performance of pelvic phased-array (PPA) coils and integrated endorectal PPA coils in evaluation of local extent of prostate cancer. MATERIALS AND METHODS: Seventy-one men underwent magnetic resonance (MR) imaging within 3 weeks of radical prostatectomy. MR findings of tumor, extracapsular extension, seminal vesicle invasion, nodal involvement, and stage were compared with step-sectioned (3-4-mm intervals) whole-mounted pathologic specimens. Prospective consensus versus single-reader interpretation (kappa statistics) and PPA versus integrated endorectal PPA coils (McNemar test) were compared, and a rating scale of 1-6 was developed for analysis of receiver operating characteristics. Statistical significance was calculated at delta = .05. RESULTS: Comparison between consensus and single-reader image interpretation showed positive but poor agreement (kappa = .38) and no statistical significance. Staging accuracy was better (difference approached significance) for integrated endorectal PPA coils (77%) than for PPA coils (68%). CONCLUSION: The integrated endorectal PPA coil is better for evaluation of local prostatic cancer than is the PPA coil.

authors

  • Hricak, Hedvig
  • White, Scott
  • Vigneron, Daniel
  • Kurhanewicz, John
  • Kosco, Anne
  • Levin, David
  • Weiss, Jerome
  • Narayan, Perinchery
  • Carroll, P R

publication date

  • December 1, 1994

Research

keywords

  • Magnetic Resonance Imaging
  • Prostate
  • Prostatic Neoplasms

Identity

Scopus Document Identifier

  • 0028113557

Digital Object Identifier (DOI)

  • 10.1148/radiology.193.3.7972810

PubMed ID

  • 7972810

Additional Document Info

volume

  • 193

issue

  • 3