Iudin L A, Reznichenko A A, Uskov I A, Gol'dman V E, Ivanova Iu V, Naryshkina V M, Budkevich Iu B
Med Radiol (Mosk). 1991;36(9):41-6.
Dynamic scintigraphy with lasix (urosemide) in 59 patients with hydronephrosis, nephrolithiasis, chronic pyelonephritis, ureterohydronephrosis on an initial scintigram has shown retention of 99mTc-DTPA in the urinary tracts: an increase or absence of the excretory segment on the activity-time curve up to the appearance of an obstructive type of a curve. Verified operative findings in 19 patients with hydronephrosis and nephrolithiasis have shown a high sensitivity and accuracy of the detection of stenosis of the urinary tracts in the absence of the excretory segment on an initial scintigram irrespective of the fact whether it appears or not on a scintigram after lasix administration. Stenosis of the ureteropelvic segment can be observed in the presence of the excretory segment on an initial scintigram with a prolonged half-period of RP excretion; its 2-fold decrease is noted on a scintigram after lasix administration.
对59例患有肾积水、肾结石、慢性肾盂肾炎、输尿管肾盂积水的患者进行速尿（呋塞米）动态闪烁扫描，初始闪烁扫描显示尿路中99m锝-二乙三胺五乙酸（99mTc-DTPA）潴留：在活动时间曲线上排泄段增加或缺失，直至出现梗阻型曲线。对19例肾积水和肾结石患者的手术结果进行验证，结果显示，无论速尿给药后闪烁扫描上是否出现排泄段，初始闪烁扫描上无排泄段时，检测尿路狭窄具有较高的敏感性和准确性。初始闪烁扫描上存在排泄段且放射性核素排泄半衰期延长时，可观察到输尿管肾盂段狭窄；速尿给药后闪烁扫描上可观察到其降低两倍。
