Sanders R C, Jeck D L
Radiology. 1976 Apr;119(1):199-202. doi: 10.1148/119.1.199.
Twenty-three patients with blood urea nitrogen (BUN) over 70 and thought clinically to be in renal failure were examined by ultrasound. A correct diagnosis of kidney size and the presence or absence of hydronephrosis or polycystic kidney was made in all but one instance. One kidney in a patient with end-stage renal failure was not seen ultrasonically but was subsequently demonstrated on a retrograde pyelogram. In 10 patients, excretory urography (on 4 occasions with tomography) failed to demonstrate the kidneys adequately. It is suggested that ultrasound should either be the first or second imaging technique in the investigation of patients who present in renal failure of unknown cause.
对23例血尿素氮（BUN）超过70且临床诊断为肾衰竭的患者进行了超声检查。除1例病例外，其余病例均对肾脏大小以及是否存在肾积水或多囊肾做出了正确诊断。1例终末期肾衰竭患者的一侧肾脏超声检查未显示，但随后逆行肾盂造影显示了该肾脏。10例患者的排泄性尿路造影（4次进行了体层摄影）未能充分显示肾脏。建议在对病因不明的肾衰竭患者进行检查时，超声应作为首选或次选的成像技术。
