Fig. 1
From: Salvage of bleeding renal allograft following biopsy, with suture technique: a case report

Doppler sonographic image of the allograft. The superior pole contains a lesion with turbulent flow. The feeding artery (A) and the draining vein (V) are visible in red and blue, respectively. The lesion shows a mixed arterial and venous flow with a resistivity index of 0.82. The rest of the kidney showed no diastolic flow, and the resistivity index was 1.0