ABSTRACT
TRANSDUCER 2.0-6.0 MHz curvilinear transducer. Tissue harmonic imaging is often used, particularly in obese patients.
METHOD Image the right kidney using the liver as an acoustic window. The left kidney is typically more dif cult to visualize. The left anterior oblique 45° or right decubitus position may help, and asking the patient to suspend respiration ensures less movement. Both kidneys should be imaged in both longitudinal and transverse planes. To better visualize the upper poles, ipsilateral arm elevation and deep inspiration may be useful. The right kidney lies 1-2 cm lower than the left.
