50-year-old male patient status post OKT 2004 now with acute renal failure. Evaluate for obstruction, evidence of rejection. RENAL TRANSPLANT: LOCATION: Right iliac fossa.PERITRANSPLANT TISSUES: No perinephric fluid collection is identified.KIDNEY: The transplant kidney measures 11.8 cm in length and demonstrates increased cortical echogenicity.COLLECTING SYSTEM/URETER: No evidence of hydronephrosis.URINARY BLADDER: The bladder is distended.VASCULAR DOPPLER DATA: Color and spectral Doppler were performed on inflow and outflow vessels. Transplant renal artery anastomosis: Peak systolic velocity of 144 cm/s, RI 0.79.Proximal transplant renal artery: Peak systolic velocity of 104 cm/s, RI of 0.85.Mid transplant renal artery: Peak systolic velocity of 112 cm/s, RI of 0.77.Distal transplant renal artery: Peak systolic velocity of 122 cm/s, RI of 0.77.Transplant renal artery hilum: Peak systolic velocity 105 cm/s, RI of 0.78.Segmental artery resistive indices range from 0.67-0.73.Arcuate artery resistive indices range from 0.58-0.61.The transplant renal vein is patent.OTHER: No significant abnormality noted.
1. Patent transplant renal vasculature with intrarenal resistive indices within normal limits.2. Echogenic kidney compatible with medical renal disease/parenchymal dysfunction. No evidence of hydronephrosis.