Structured reporting in radiologic education - Potential of different PI-RADS versions in prostate MRI controlled by in-bore MR-guided biopsies

• Published in: British journal of radiology 2022-03, Vol.95 (1131), p.20210458-20210458
• Main Authors: Garmer, Marietta, Karpienski, Julia, Groenemeyer, Dietrich Hw, Wagener, Birgit, Kamper, Lars, Haage, Patrick
• Format: Article
• Language: English
• Subjects: Aged; Biomarkers, Tumor - blood; Contrast Media; Humans; Image Interpretation, Computer-Assisted; Image-Guided Biopsy - methods; Innovations in prostate cancer special feature : Full Paper; Magnetic Resonance Imaging, Interventional; Male; Multiparametric Magnetic Resonance Imaging; Prostate-Specific Antigen - blood; Prostatic Neoplasms - diagnostic imaging; Prostatic Neoplasms - pathology; Radiology - education; Retrospective Studies; Sensitivity and Specificity
• ISSN: 0007-1285; 1748-880X
• DOI: 10.1259/bjr.20210458

To evaluate the efficiency of structured reporting in radiologic education - based on the example of different PI-RADS score versions for multiparametric MRI (mpMRI) of the prostate. MpMRI of 688 prostate lesions in 180 patients were retrospectively reviewed by an experienced radiologist and by a student using PI-RADS V1 and V2. Data sets were reviewed for changes according to PI-RADS V2.1. The results were correlated with results obtained by MR-guided biopsy. Diagnostic potency was evaluated by ROC analysis. Sensitivity, specificity and correct-graded samples were evaluated for different cutpoints. The agreement between radiologist and student was determined for the aggregation of the PI-RADS score in three categories. The student's time needed for evaluation was measured. The area under curve of the ROC analysis was 0.782/0.788 (V1/V2) for the student and 0.841/0.833 (V1/V2) for the radiologist. The agreement between student and radiologist showed a Cohen's weighted κ coefficient of 0.495 for V1 and 0.518 for V2. Median student's time needed for score assessment was 4:34 min for PI-RADSv1 and 2:00 min for PI-RADSv2 ( < 0.001). Re-evaluation for V2.1 changed the category in 1.4% of all ratings. The capacity of prostate cancer detection using PI-RADS V1 and V2 is dependent on the reader's experience. The results from the two observers indicate that structured reporting using PI-RADS and, controlled by histopathology, can be a valuable and quantifiable tool in students' or residents' education. Herein, V2 was superior to V1 in terms of inter-observer agreement and time efficacy. Structured reporting can be a valuable and quantifiable tool in radiologic education. Structured reporting using PI-RADS can be used by a student with good performance. PI-RADS V2 is superior to V1 in terms of inter-observer agreement and time efficacy.