Acibadem Healthcare Group, Department of Radiology, Istanbul 34457, Turkey.
Acibadem Mehmet Ali Aydinlar University, School of Medicine, Department of Radiology, Istanbul 34457, Turkey.
Eur J Radiol. 2023 Aug;165:110923. doi: 10.1016/j.ejrad.2023.110923. Epub 2023 Jun 9.
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.
前列腺成像质量（PI-QUAL）评分是多参数前列腺 MRI（mpMRI）中进行图像质量评估的第一步。先前的研究表明，专家读者之间的评分具有中等至极好的一致性；然而，需要研究来评估基本前列腺读者对 PI-QUAL 评分的读者间一致性。
评估多中心前列腺 mpMRI 中基本前列腺读者对 PI-QUAL 评分的读者间一致性。
来自不同中心的五名基本前列腺读者分别对来自五个不同中心的 mpMRI 数据中的 T2 加权图像、扩散加权成像（DWI）包括表观扩散系数（ADC）图和动态对比增强（DCE）图像进行 PI-QUAL 评分。使用加权 Cohen's kappa 评估读者之间 PI-QUAL 的读者间一致性。此外，还计算了评估每个 mpMRI 序列诊断充分性的绝对一致性。
共有 355 名年龄中位数为 71 岁（IQR，60-78）的男性入组本研究。PI-QUAL 评分的两两 kappa 评分范围为 0.656 至 0.786，表明读者之间具有良好的读者间一致性。两两绝对一致性范围为 T2W 成像的 0.75 至 0.88，ADC 图的 0.74 至 0.83，以及 DCE 图像的 0.77 至 0.86。
来自不同机构的基本前列腺放射科医生对多中心数据的 PI-QUAL 评分提供了良好的读者间一致性。
