Author:
Limpaiboon Chatwadee,Chatangam Nisachon,Burapasomboon Pattarin,Sasiwimonphan Kewalee
Abstract
Objective:To assess the inter-observer agreement with the use of the Prostate Imaging Reporting and Data System (PI-RADS) version 2.0 for detection of prostate cancer at multiparametric magnetic resonance (MR) imaging in a tissue diagnosis patient population. Material and Method:This retrospective study was approved by the local ethics committee. Fifty-six lesions in 37 patients with elevated prostate-specific antigen levels who underwent trans-rectal ultrasound (TRUS)-guided biopsy or prostatectomy with multiparametric MR imaging of the prostate suspicious lesions detected at multiparametric MR imaging were scored by four readers of varying experience who were blinded to pathologic results by using to the newly revised PI-RADS and the scoring system version 2. Inter-observer agreement was evaluated by using the Intra-Interclass Correlation Coefficient (ICC). Results: Inter-observer agreement of four observers using the PI-RADS v2 for prostate cancer was an intermediate to good agreement beyond chance; ICC = 0.736, (95% CI: 0.565, 0.851). All observers, there was a most correlated PI-RADS assessment between observer 1 and observer 2 r = 0.758 (p<0.001). Conclusion: PI-RADS score version 2 shows intermediate to good agreement in readers of varying experience.
Publisher
Phramongkutklao Hospital Foundation
Reference21 articles.
1. Ferlay J, Shin HR, Bray F, Forman D, Mathers C, Parkin DM (2010) GLOBOCAN 2008 v2.0, cancer incidence and mortality worldwide: IARC CancerBase No. 10. International Agency for Research on Cancer, Lyon, France. Available via http://globocan.iarc.fr
2. Barentsz JO, Richenberg J, Clements R, Choyke P, Verma S, Villeirs G et al. ESUR prostate MR guidelines 2012. Eur Radiol 2012;22:746–757.
3. American College of Radiology. Breast Imaging Reporting and Data System (BI-RADS), Breast Imaging Atlas, 4th edition American College of Radiology (ACR) 2003, Reston.
4. Schimmöller L, Quentin M, Arsov C, Lanzman RS, Hiester A, Rabenalt R et al. Inter-reader agreement of the ESUR score for prostate MRI using in-bore MRI-guided biopsies as the reference standard. European Radiology 2013;23:3185–3190.
5. Mistry K, Cable G. Meta-analysis of prostate-specific antigen and digital rectal examination as screening tests for prostate carcinoma. J Am Board Fam Pract 2003;16:95–101.