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.
journal_name
Radiologyjournal_title
Radiologyauthors
Hricak H,White S,Vigneron D,Kurhanewicz J,Kosco A,Levin D,Weiss J,Narayan P,Carroll PRdoi
10.1148/radiology.193.3.7972810subject
Has Abstractpub_date
1994-12-01 00:00:00pages
703-9issue
3eissn
0033-8419issn
1527-1315journal_volume
193pub_type
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