title: Ultrasonic evaluation of renal calculi.
abstract: Nine patients with radiographic evidence of renal calculi were evaluated with gray scale renal ultrasonography. A characteristic "sonic shadow" caused by the calculus was adequately demonstrated in each case. This paper discusses the advantage of ultrasound in evaluating the presence of nonopaque and opaque renal stones.
mesh_terms: D006801:Humans; D007669:Kidney Calculi / Q000175:diagnosis*; D014463:Ultrasonography