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Figure 1. B mode US demonstrate a mildly atrophic right kidney measuring 9 cm in length. Incidental note of a lower pole cortical cyst.
Figure 2. Colour aliasing noted at the proximal right renal artery.
Figure 3. Pulsed Doppler sampling reveals elevated peak systolic velocities (PSV) 366 cm/sec at the site of colour aliasing.
Figure 4. Turbulent flow is seen downstream in the mid renal artery.
Figure 5-7. There are minimal damping of the segmental internal artery waveform with no significant prolongation of the systolic acceleration time.
Figure 8. The PSV in the juxtarenal abdominal aorta measures 59 cm/sec. The renal artery to abdominal aorta ratio is calculated as 6.2.