We assessed the interobserver reproducibility of the Prostate Imaging Quality (PI-QUAL) score for prostate MR quality between two expert radiologists who independently scored a total of 41 multiparametric prostate MR scans from different vendors and scanners. All men included in this study had biopsy-confirmed prostate cancer and received robotic-assisted laparoscopic prostatectomy after imaging. Agreement was substantial (κ = 0.77; percent agreement = 80%) when assessing each single PI-QUAL score (1 to 5). Two expert radiologists achieved substantial reproducibility for the PI-QUAL score, but the composition of the scoring system will need to undergo further refinements.
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