中国临床医学影像杂志2026，Vol.37Issue(3)：191-195,5.DOI:10.12117/jccmi.2026.03.009
磁共振多b值DWI联合IFIR-MRA对移植肾急性排斥反应的早期诊断价值
The early diagnostic value of magnetic resonance multi-b-value DWI combined with IFIR-MRA for acute rejection of transplanted kidneys
摘要
Abstract
Objective:To explore the early diagnostic value of magnetic resonance multi-b-value diffusion-weighted imaging(DWI)combined with inflow reversal recovery magnetic resonance angiography(IFIR-MRA)for acute rejection(AR)following kidney transplantation.Methods:A total of 82 patients who underwent kidney transplantation and were admitted to our hospital from May 2021 to December 2024 were enrolled as the research subjects.All patients underwent pathological examination,magnetic resonance multi-b-value DWI examination and IFIR-MRA examination.According to the results of pathological examination,the patients were divided into the AR group(n=57)and the non-AR group(n=25).Taking pathological examination as the gold standard,the consistency of magnetic resonance multi-b-value DWI examination,IFIR-MRA examination,combined diagnosis and the gold standard was compared,and the efficacy of different methods in diagnosing AR following kidney transplantation was compared.Results:The sensitivity of magnetic resonance multi-b-value DWI examination in diagnosing AR in kidney transplantation was 82.46％(47/57),the specificity was 68.00％(17/25),the accuracy was 78.05％(64/82),and the Kappa value was 0.493.The sensitivity of IFIR-MRA examination in diagnosing AR in kidney transplantation was 78.95％(45/57),the specificity was 64.00％(16/25),the accuracy was 74.39％(61/82),and the Kappa value was 0.455.The sensitivity of magnetic resonance multi-b-value DWI combined with IFIR-MRA in diagnosing AR in kidney transplantation was 98.25％(56/57),the specificity was 96.00％(24/25),the accuracy was 97.56％(80/82),and the Kappa value was 0.942.The sensitivity,specificity and accuracy of magnetic resonance multi-b-value DWI combined with IFIR-MRA in diagnosing AR in kidney transplantation were higher than those of the single diagnostic method(P<0.05).Conclusion:Magnetic resonance multi-b-value DWI combined with IFIR-MRA has a high diagnostic efficacy in the diagnosis of renal transplantation AR and is worthy of wide clinical application.关键词
肾移植/磁共振成像/磁共振血管造影术Key words
Kidney Transplantation/Magnetic Resonance Imaging/Magnetic Resonance Angiography分类
医药卫生引用本文复制引用
张思微,吴仪仪,王佳丽..磁共振多b值DWI联合IFIR-MRA对移植肾急性排斥反应的早期诊断价值[J].中国临床医学影像杂志,2026,37(3):191-195,5.基金项目
徐州市科技项目(KC23279). （KC23279）
