The Prostate Imaging Quality (PI-QUAL) score is the first step toward image quality assessment in multi-parametric prostate MRI (mpMRI). Previous studies have demonstrated moderate to excellent inter-rater agreement among expert readers; however, there is a need for studies to assess the inter-reader agreement of PI-QUAL scoring in basic prostate readers.
To assess the inter-reader agreement of the PI-QUAL score amongst basic prostate readers on multi-center prostate mpMRI.
Five basic prostate readers from different centers assessed the PI-QUAL scores independently using T2-weighted images, diffusion-weighted imaging (DWI) including apparent diffusion coefficient (ADC) maps, and dynamic-contrast-enhanced (DCE) images on mpMRI data obtained from five different centers following Prostate Imaging-Reporting and Data System Version 2.1. The inter-reader agreements amongst radiologists for PI-QUAL were evaluated using weighted Cohen's kappa. Further, the absolute agreements in assessing the diagnostic adequacy of each mpMRI sequence were calculated.
A total of 355 men with a median age of 71 years (IQR, 60-78) were enrolled in the study. The pair-wise kappa scores ranged from 0.656 to 0.786 for the PI-QUAL scores, indicating good inter-reader agreements between the readers. The pair-wise absolute agreements ranged from 0.75 to 0.88 for T2W imaging, from 0.74 to 0.83 for the ADC maps, and from 0.77 to 0.86 for DCE images.
Basic prostate radiologists from different institutions provided good inter-reader agreements on multi-center data for the PI-QUAL scores.
European journal of radiology. 2023 Jun 09 [Epub ahead of print]
Yeliz Basar, Deniz Alis, Mustafa Ege Seker, Mustafa Said Kartal, Batuhan Guroz, Aydan Arslan, Sabri Sirolu, Serpil Kurtcan, Nurper Denizoglu, Ercan Karaarslan
Acibadem Healthcare Group, Department of Radiology, Istanbul 34457, Turkey. Electronic address: ., Acibadem Mehmet Ali Aydinlar University, School of Medicine, Department of Radiology, Istanbul 34457, Turkey. Electronic address: ., Acibadem Mehmet Ali Aydinlar University, School of Medicine, Istanbul 34752, Turkey. Electronic address: ., Cumhuriyet University, School of Medicine, Sivas 58140, Turkey. Electronic address: ., Acibadem Mehmet Ali Aydinlar University, School of Medicine, Department of Radiology, Istanbul 34457, Turkey. Electronic address: ., Umraniye Training and Research Hospital, Department of Radiology, Istanbul 34764, Turkey. Electronic address: ., Istanbul Sisli Hamidiye Etfal Training and Research Hospital, Department of Radiology, Istanbul 34396, Turkey. Electronic address: ., Acibadem Healthcare Group, Department of Radiology, Istanbul 34457, Turkey. Electronic address: ., Acibadem Healthcare Group, Department of Radiology, Istanbul 34457, Turkey. Electronic address: ., Acibadem Mehmet Ali Aydinlar University, School of Medicine, Department of Radiology, Istanbul 34457, Turkey. Electronic address: .