Pollack H M, Arger P H, Goldberg B B, Mulholland S G
Radiology. 1978 Apr;127(1):233-7. doi: 10.1148/127.1.233.
Four patients with 5 nonopaque renal calculi composed of uric acid were examined by ultrasound. The calculi varied in size from a 1.5 X 1.5-cm intrapelvic stone to a staghorn calculus measuring 4 cm. All stones were satisfactorily imaged by ultrasound, allowing a diagnosis of nephrolithiasis to be made with confidence in each case. In 2 patients with poor excretion on urography, the diagnosis was not suspected prior to the ultrasound examination. The authors feel that ultrasound has great potential value in the investigation of nonopaque filling defects of the renal pelvis and in patients with urographic nonvisualization who have a high risk of uric acid lithiasis.
对4例患有5枚由尿酸构成的不透光肾结石的患者进行了超声检查。结石大小不一，从一枚1.5×1.5厘米的肾盂内结石到一枚4厘米的鹿角形结石。所有结石均通过超声得到了满意的成像，从而在每例病例中都能自信地做出肾结石的诊断。在2例静脉肾盂造影排泄不佳的患者中，在超声检查之前未怀疑有该诊断。作者认为，超声在肾盂不透光充盈缺损的检查以及在静脉肾盂造影不显影且有高尿酸结石形成风险的患者中具有巨大的潜在价值。
