Endorectal MRI of Prostate Cancer: Comparison with Findings on Radical Prostatectomy
Year: 1999
Type: article
Study design: Observational Study
Abstract: Purpose: To assess the accuracy of magnetic resonance(MR) imaging using an endorectal surface coil in evaluation of local lesions of prostate carcinoma.\nMaterials and Methods: Twenty patients with surgically proven prostate carcinoma underwent MR imaging using a 1.5T unit and an endorectal surface coil made at the Asan Medical Center. T1-weighted images in the axial plane and T2-weighted images in the axial, coronal, and sagittal planes were obtained in all patients. We divided the prostate gland into right and left lobe, then determined the location of carcinoma within it, as well as capsular penetration and seminal vesicle invasion. MR images were compared with surgical specimens.\nResuIts: MR imaging using an endorectal surface coil accurately demonstrated the staging of prostate carcinoma in 60% of patients(12/20), but with regard to the location of carcinoma within the prostate gland, capsular penetration, and seminal vesicle invasion, only nine cases (45%) showed complete agreement between endorectal surface coil MR images and pathologic findings. The accuracy of localizing the carcinoma within the prostate gland, capsular penetration, and seminal vesicle invasion were 65%(13/20), 70%(14/20), and 90%(18/20), respectively.\nConclusion : MR imaging using an endorectal surface coil for the localization of prostate carcinoma and periprostatic tissue invasion showed a low degree of accuracy. More specific imaging findings are therefore needed.
Institutions: Asan Medical Center, University of Ulsan
Language: English
Subfield: Urology
Field: Medicine
Domain: Health Sciences
Open Access status: green
OpenAlex ID: W2345500095