title: Preliminary results of endorectal surface coil magnetic resonance imaging for local staging of prostate cancer.
abstract: OBJECTIVE
  To evaluate the effectiveness of endorectal surface coil (ERC) magnetic resonance imaging (MRI) in the local staging of adenocarcinoma of the prostate (ACP).
  
  
  METHODS
  A total of 23 patients who were considered candidates for radical prostatectomy because of clinically localized ACP were examined by ERC-MRI. All patients underwent laparoscopic or open lymph-node dissection prior to surgery. Four patients had positive lymph nodes at operation. A total of 19 underwent radical prostatectomy, allowing comparison of the MRI data with the surgical pathologic findings.
  
  
  RESULTS
  Twelve patients had extraglandular spread of ACP (T3) and 7 had locally confined ACP (T2). ERC-MRI predicted correctly a T3 tumor in 10 of 12 cases and a T2 tumor in 4 of 7 cases. ERC-MRI was 74% accurate in differentiating T2 from T3 tumor. Three cases of overestimation were in studies with poor image quality because of bowel movement motion artifacts.
  
  
  CONCLUSIONS
  ERC-MRI was found to be a sensitive modality in staging clinically localized ACP.
authors.affiliation: Abteilung für Abdominale Röntgendiagnostik, Radiologische Universitätsklinik, Nijmegen, Neiderlande.
authors.forename: G J
authors.initials: GJ
authors.lastname: Jager
authors.forename: J O
authors.initials: JO
authors.lastname: Barentsz
authors.forename: J J
authors.initials: JJ
authors.lastname: de la Rosette
authors.forename: G
authors.initials: G
authors.lastname: Rosenbusch
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009367:Neoplasm Staging; D011471:Prostatic Neoplasms / Q000473:pathology*