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- W2383955539 abstract "Objective To observe the diagnostic value of non-enhanced inflow-sensitive inversion recovery(IFIR) MRA(IFIR-MRA) in detection of renal artery stenosis(RAS).Methods Sixty patients with suspicious renovascular hypertension underwent both IFIR-MRA and enhanced CTA.The imaging quality,renal artery display and renal artery grading were all evaluated.Spearman correlation analysis was used to assess the correlation between the two methods.Compared with CTA,the diagnostic sensitivity,specificity,positive predictive value(PPV),negative predictive value(NPV) and accuracy rate for IFIR-MRA on detection RAS were calculated.Results Totally 126 main renal arteries in 60 patients were checked on CTA and IFIR-MRA,respectively.The Spearman correlation coefficient was 0.773(P0.001) for renal artery display,0.998(P0.001) for renal arteries grading and 0.833(P0.001) for RAS detection.The sensitivity,specificity,PPV,NPV and accuracy of IFIR-MRA for detection RAS was 100%(23/23),98.06%(101/103),92.00%(23/25),100%(101/101) and 98.41%(124/126),respectively.Conclusion Non-enhanced IFIR-MRA could gain quite good renal artery imaging quality and high sensitivity,specificity,accuracy rate for detecting RAS.It could be regarded as the first choice for imaging examination of patients with suspicious RAS." @default.
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- W2383955539 date "2012-01-01" @default.
- W2383955539 modified "2023-09-27" @default.
- W2383955539 title "MR angiography with non-enhanced inflow-sensitive inversion recovery pulse sequence in diagnosis of renal artery stenosis" @default.
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