Normal Ultrasound Assessment of the Renal Allograft Clinical History A 43-year old man with a recent history of renal transplant surgery was referred to have an ultrasound assessment of the new renal allograft. Case Description The renal allograft appeared normal in size, outline, echotexture, and perfusion with no evidence of renal artery stenosis encountered. Diagnosis/ Discussion/ Treatment/ Follow up The ultrasound report was sent to the referring nephrologist. During ultrasound assessment of the renal allografts, it is important to use a high frequency curvilinear transducer (6 – 7 MHz). This provides a reasonable balance between the acquisition of great image resolution, and having enough depth to visualise the graft and structures deep to and surrounding the graft. Sonograms B-Mode sonogram of the normal transplant kidney in the left iliac fossa (LIF) Colour Doppler imaging of the normal transplant kidney showing excellent perfusion of the graft Power Doppler imaging of the normal transplant kidney showing excellent perfusion of the graft Colour Doppler imaging of the transplant renal artery showing the point of anastomosis with the left external iliac artery Spectral Doppler imaging of the left external iliac artery measuring the peak systolic velocity (PSV) prior to the anastomosis Spectral Doppler imaging of the left external iliac artery measuring the peak systolic velocity (PSV) at the level of the anastomosis Spectral Doppler imaging of the transplant renal artery Spectral Doppler of the segmental artery within the transplant kidney Spectral Doppler of the intrarenal artery at the lower pole Spectral Doppler of the intrarenal artery at the interpolar region of the graft Spectral Doppler of the intrarenal artery at the upper pole Published on: September 25, 2024
