Diagnostic Ultrasound - Abdomen and Pelvis

Approach to Sonography of Renal Allografts
(Left) Longitudinal oblique
power Doppler ultrasound
through the arterial
anastomosis shows two renal
arteries ſt arising from a
common patch sewn to the
iliac artery st. (Right) Doppler
ultrasound shows a segmental
renal artery with
measurement of the resistive
index (RI). Normal RI is < 0.7.
The waveform st should be
antegrade throughout the
cardiac cycle.
Diagnoses: Kidney Transplant
(Left) Spectral Doppler
ultrasound shows a normal
monophasic renal vein
waveform ſt. (Right) Spectral
Doppler ultrasound shows a
pulsatile biphasic renal vein
waveform ſt. This should not
be mistaken for an arterial
waveform.
(Left) Transverse ultrasound
through the hilum of the renal
transplant shows the anechoic
lumen of the segmental renal
artery ſt and vein . The
cortex st is isoechoic to the
iliacus muscle in this child.
(Right) Transverse color
Doppler ultrasound through
the mid renal transplant
shows normal color flow in the
segmental renal artery ſt and
vein .
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