Interobserver agreement of Prostate Imaging–Reporting and Data System (PI-RADS–v2)

Springer Science and Business Media LLC - Tập 52 - Trang 1-8 - 2021
Hala Maher Ahmed1, Ahmed Ebrahim Ebeed1, Ahmed Hamdy1, Mohamed Abou El-Ghar2, Ahmed Abdel Khalek Abdel Razek3
11Department of Diagnostic Radiology, Aswan Faculty of Medicine, Aswan, Egypt
2Department of Diagnostic Radiology, Mansoura Urologyand Nephrology Center, Mansoura, Egypt
3Department of Diagnostic Radiology, Mansoura Faculty of Medicine, Mansoura, Egypt

Tóm tắt

A retrospective study was conducted on 71 consecutive patients with suspected prostate cancer (PCa) with a mean age of 56 years and underwent mp-MRI of the prostate at 3 Tesla MRI. Two readers recognized all prostatic lesions, and each lesion had a score according to Prostate Imaging–Reporting and Data System version 2 (PI-RADS-v2). To evaluate the interobserver agreement of PI-RADS-v2 in characterization of prostatic lesions using multiparametric MRI (mp-MRI) at 3 Tesla MRI. The overall interobserver agreement of PI-RADS-v2 for both zones was excellent (k = 0.81, percent agreement = 94.9%). In the peripheral zone (PZ) lesions are the interobserver agreement for PI-RADS II (k = 0.78, percent agreement = 83.9%), PI-RADS III (k = 0.66, percent agreement = 91.3 %), PI-RADS IV (k = 0.69, percent agreement = 93.5%), and PI-RADS V (k = 0.91, percent agreement = 95.7 %). In the transitional zone (TZ) lesions are the interobserver agreement for PI-RADS I (k = 0.98, percent of agreement = 96%), PI-RADS II (k = 0.65, percent agreement = 96%), PI-RADS III (k = 0.65, percent agreement = 88%), PI-RADS IV (k = 0.83, percent agreement = 96%), and PI-RADS V (k = 0.82, percent agreement = 92%). We concluded that PI-RADS-v2 is a reliable and a reproducible imaging modality for the characterization of prostatic lesions and detection of PCa.

Tài liệu tham khảo

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