RoFo : Fortschritte auf dem Gebiete der Rontgenstrahlen und der Nuklearmedizin · 1998
[The MRT and MRA of kidney transplants--vascular and perfusion assessment].
Сравнительное исследованиеСтатьяНазвание и аннотация: Перевод в очереди
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Wiesner W, Pfammatter T, Krestin G P, Debatin J F
Аннотация
PURPOSE: To document the value of fast contrast enhanced-sequences in the assessment of the vascular supply and parenchymal perfusion in renal transplants.
PATIENTS: 18 recipients of a renal transplant were examined with a 1.5-tesla-MR-system. The protocol included fast contrast enhanced 3D MR angiography and coronal 2D GRE sequences. The transplant artery and vein were assessed as well as regional parenchymal perfusion.
RESULTS: 3D MRA detected three transplant artery stenoses and one occlusion. In addition, two renal vein thromboses and one compression were identified. Perfusion deficits were documented in 8 renal transplants: renal infarction (n = 4), cortical necrosis (n = 2), acute tubular necrosis (n = 1) and venous ischemia (n = 1). Fluid collections were documented as well as dilation of the collecting system and abnormalities of the surrounding tissues.
CONCLUSION: Contrast enhanced MRI and MRA permit a comprehensive assessment of renal transplants without inducing nephrotoxicity.
PATIENTS: 18 recipients of a renal transplant were examined with a 1.5-tesla-MR-system. The protocol included fast contrast enhanced 3D MR angiography and coronal 2D GRE sequences. The transplant artery and vein were assessed as well as regional parenchymal perfusion.
RESULTS: 3D MRA detected three transplant artery stenoses and one occlusion. In addition, two renal vein thromboses and one compression were identified. Perfusion deficits were documented in 8 renal transplants: renal infarction (n = 4), cortical necrosis (n = 2), acute tubular necrosis (n = 1) and venous ischemia (n = 1). Fluid collections were documented as well as dilation of the collecting system and abnormalities of the surrounding tissues.
CONCLUSION: Contrast enhanced MRI and MRA permit a comprehensive assessment of renal transplants without inducing nephrotoxicity.