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題 名 | Diuresis Renosonography for the Assessment of Obstructive Uropathy: Clinical Applications and Limitations=以利尿性腎臟超音波評估阻塞性尿病變:臨床運用及其限制 |
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作 者 | 張世忠; | 書刊名 | Journal of Medical Ultrasound |
卷 期 | 6:3 1998.09[民87.09] |
頁 次 | 頁113-122 |
分類號 | 415.802 |
關鍵詞 | 腎臟超音波; 阻塞性尿病變; Ultrasonography; Diuresis renosonography; Obstructive uropathy; Congenital ureteropelvic junction stenosis; Ureteral stricture; |
語 文 | 英文(English) |
英文摘要 | Background: This study was carried out to assess the feasibility of using diuresis renosonography (DRS) to evaluate obstructive uropathy unrecognized by conventional urography and its potential for clinical application. Materials and Methods: DRS was performed in 100 urologic cases (134 kidneys) of varying etiology where concern existed for ureteral stasis or obstruction. Results: The sensitivity and specificity of a normal DRS pattern for normal indneys was 86.4% and 92.8%, respectively. Of the 45 kidneys with ureteral calculi showing stasis of contrast medium of varying degrees on excretory urography, six (13.3%) had pattern Ⅰ (normal) on DRS, while 15 (33.3%) showed pattern Ⅱ (stasis). A stasis DRS pattern was common in cases recovering from ureterolithotomies or ureteroscopic calculi manipulation. Regular flollow-up of the kidney status with DRS allowed for early detection of subclinical obstruction at the anastomosis of the ureterointestinal junction in a Kock-pouch urinary diversion. DRS was particularly useful in predicting occult extrinsic ureteral obstruction secondary to cancerous retroperitoneal lymphadenopathy or to direct tumor invasion in the lower pelvis. Conclusion: DRS is a safe, convenient and fairly reliable outpatient technique for the evaluation of obstructive uropathies. Its accuracy in predicting occult ureteral obstruction in comparison with Whitaker's test needs further investigation. |
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