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Clin Imaging. 2012 Sep-Oct;36(5):547-52. doi: 10.1016/j.clinimag.2011.11.028. Epub 2012 Jun 8.

Local staging of prostate cancer: comparative accuracy of T2-weighted endorectal MR imaging and transrectal ultrasound.

Author information

  • 1Department of Radiology and Biomedical Imaging, University of California San Francisco, 505 Parnassus Ave, San Francisco, CA 94143-0628, USA. adam.jung@ucsf.edu

Abstract

OBJECTIVE:

The objective of this study was to compare the accuracy of T2-weighted magnetic resonance (MR) imaging and transrectal ultrasound (TRUS) for staging of prostate cancer.

MATERIAL AND METHODS:

A total of 101 men with biopsy-proven prostate cancer undergoing both T2-weighted endorectal MR imaging and B-mode TRUS for local tumor staging prior to radical prostatectomy were retrospectively identified. Three MR readers rated the likelihood of locally advanced disease using a 5-point scale. An ultrasound reader performed the same rating. Staging accuracy was compared using receiver operating characteristic curves.

RESULTS:

Staging accuracy was not significantly different between MR imaging (A(z) = 0.69-0.70) and TRUS (A(z) = 0.81, P>.05).

CONCLUSIONS:

T2-weighted MR imaging demonstrates comparable accuracy to B-mode TRUS for depicting locally invasive prostate cancer.

Published by Elsevier Inc.

PMID:
22920360
[PubMed - indexed for MEDLINE]
PMCID:
PMC3694423
Free PMC Article

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