Aliukonis Paulius, Letauta Tadas, Briedienė Rūta, Naruševičiūtė Ieva, Letautienė Simona
Faculty of Medicine, Vilnius University, Vilnius, Lithuania.
Department of Radiology, National Cancer Institute, Vilnius, Lithuania.
Acta Med Litu. 2017;24(1):44-50. doi: 10.6001/actamedica.v24i1.3462.
. Standardised Prostate Imaging Reporting and Data System (PI-RADS) guidelines for the assessment of prostate alterations were designed for the assessment of prostate pathology. Published by the ESUR in 2012, PI-RADS v1 was based on the total score of different MRI sequences with subsequent calculation. PI-RADS v2 was published by the American College of Radiology in 2015 and featured different assessment criteria for prostate peripheral and transitory zones. . To assess the correlations of PI-RADS v1 and PI-RADS v2 with Gleason score values and to define their predictive values of the diagnosis of prostate cancer. . A retrospective analysis of 66 patients. Prostate specific antigen (PSA) value and the Gleason score (GS) were assessed. One the most malignant focal lesion was selected in the peripheral zone of each lobe of the prostate (91 in total). Statistical analysis was carried out applying SPSS software, v.23, < 0.05. . Focal lesions assessed by PI-RADS v1 score: 10% - 1, 12% - 2, 41% - 3, 23% - 4, 14% - 5. Assessment applying PI-RADS v.2: 20% - 1, 7.5% - 2, 26%, 29.5%, and 17% were assessed by 3, 4, and 5 scores. Statistically relevant correlation was found only between GS and PI-RADS ( = 0.033). The positive predictive value of both versions of PI-RADS - 75%, negative predictive value of PI-RADS v1 - 46%, PI-RADS v2 - 43%. . PI-RADS v1 was more statistically relevant in assessing the grade of tumour. Prediction values were similar in both versions.
用于评估前列腺病变的标准化前列腺影像报告和数据系统（PI-RADS）指南旨在评估前列腺病理状况。PI-RADS v1由欧洲泌尿生殖放射学会（ESUR）于2012年发布，基于不同MRI序列的总分并进行后续计算。PI-RADS v2由美国放射学会于2015年发布，对前列腺外周区和移行区有不同的评估标准。为了评估PI-RADS v1和PI-RADS v2与 Gleason评分值的相关性，并确定它们对前列腺癌诊断的预测价值。对66例患者进行回顾性分析。评估前列腺特异性抗原（PSA）值和Gleason评分（GS）。在前列腺每个叶的外周区选择一个最恶性的局灶性病变（共91个）。使用SPSS软件v.23进行统计分析，P<0.05。PI-RADS v1评分评估的局灶性病变：10%为1分，12%为2分，41%为3分，23%为4分，14%为5分。应用PI-RADS v.2评估：20%为1分，7.5%为2分，26%、29.5%和17%分别被评估为3分、4分和5分。仅在GS和PI-RADS之间发现统计学上的显著相关性（P = 0.033）。两个版本的PI-RADS的阳性预测值均为75%，PI-RADS v1的阴性预测值为46%，PI-RADS v2的阴性预测值为43%。PI-RADS v1在评估肿瘤分级方面在统计学上更具相关性。两个版本的预测值相似。
