The Usefulness of Endo-rectal Coil MRI in the Staging of Clinically Localized Prostate Cancer / 대한비뇨기과학회지
Korean Journal of Urology
;
: 500-505, 2001.
Article
in Korean
| WPRIM
| ID: wpr-158894
ABSTRACT
PURPOSE:
We evaluated the ability of endo-rectal coil MRI (ER-MRI) to predict the local pathological stage of prostate cancer prior to radical prostatectomy and compared the results with those of transrectal ultrasonography (TRUS). MATERIALS ANDMETHODS:
ER-MRI using high field magnets (1.5 Tesla) were performed in 22 patients (mean age 62.8 years, range 51-73) with clinically localized prostate cancer before radical prostatectomy. Of the 22 patients, 17 patients were also assessed by TRUS. The results of the imaging techniques were compared with the post-operative histopathological findings. As one patient with pelvic lymph node metastasis, which was detected on frozen-section examination during surgery, was spared radical prostatectomy, the final evaluation included 21 patients.RESULTS:
DSeven of the 21 patients (33%) were found to have extraprostatic extension (EPE), and 5 had seminal vesicle invasion (SVI). The sensitivity and specificity for diagnosing EPE using ER-MRI were 62.5% and 84.6%, respectively, and 16.7% and 100% with TRUS. The sensitivity and specificity for diagnosing SVI were 80.0% and 93.8%, respectively with ER-MRI, and 0% and 92.3% with TRUS. The accuracy of predicting SVI was 90.5% with ER-MRI compared to 70.6% with TRUS.CONCLUSIONS:
ER-MRI was significantly better than TRUS for determining the local extent of prostatic cancer and for prediction of SVI in the preoperative staging of clinically localized prostate cancer.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Prostate
/
Prostatectomy
/
Prostatic Neoplasms
/
Seminal Vesicles
/
Magnetic Resonance Imaging
/
Ultrasonography
/
Sensitivity and Specificity
/
Lymph Nodes
/
Neoplasm Metastasis
Type of study:
Diagnostic study
/
Prognostic study
Limits:
Humans
Language:
Korean
Journal:
Korean Journal of Urology
Year:
2001
Type:
Article
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