[Functional MRI of transplanted kidneys using diffusion-weighted imaging].

摘要: PURPOSE Contrast-enhanced MRI is considered problematic in renal allograft recipients due to the association of gadolinium administration and development NSF. Therefore, we assessed clinical value mono- biexponential analysis diffusion-weighted imaging (DWI). MATERIALS AND METHODS A total 32 patients were divided into four groups: (a) with stable function for at least 6 months, (b) acute deterioration function, who recently underwent transplantation (< 14 days) good (c) or decreased (d) function. T 2w ax. 1w cor. a sequence 16 b-values (b = 0 - 750 s/mm (2)) performed on 1.5 scanner (Magnetom Avanto, Siemens Medical Solutions). ROI-based cortex was analyzed using software "Table Curve 2D". RESULTS Monoexponential showed an ADC (mono) 1961 +/- 104 1801 150, 2053 169 1720 191 10 (-6)mm (2) /sec patient group a, b, c d respectively. The difference between (p < 0.006) 0.04) statistically significant. Biexponential revealed mean perfusion fraction 0.21, 0.23, 0.32 0.24 (a), (b), (d), higher numerical accuracy. There no significant inter-group differences diffusion (ADC (D)) (P)). CONCLUSION Unenhanced evaluation allografts DWI feasible. correlates significance accuracy settings requires further larger-scale studies.