Agrawal Vikesh, Rangarajan Venkatesh, Kamath Tejaswini, Borwankar S S
Department of Pediatric Surgery, Seth G S Medical College and KEM Hospital, Mumbai, India.
J Indian Assoc Pediatr Surg. 2009 Jan;14(1):15-8. doi: 10.4103/0971-9261.45360.
Evaluation of vesicoureteric reflux (VUR) in children by bladder volume graded direct radionuclide cystogram (BVG DRC). This technique allows detection of VUR at different bladder volume grades.
In this prospective study, 33 patients (66 renal units) with suspected vesicoureteric reflux were subjected to a voiding cystourethrogram (VCUG) and BVG DRC. The patients were assessed further with radioisotope renal scans for renal cortical scars.
Twenty-two patients and 36 renal units were found to have VUR in either of the reflux studies. A VCUG was able to detect 20 units (55.50%) and a BVG DRC was able to detect 35 units (97.2%). A VCUG had a test accuracy of 77.8% and a BVG DRC had a test accuracy of 98.6%. There was a positive correlation between bladder volume grades and scarring on a DMSA scan.
Like a conventional DRC, BVG DRC is a sensitive and an accurate test. It gives additional information on the reflux phenomenon with respect to bladder filling. The bladder volume graded technique is better than conventional DRC for grading of VUR.
通过膀胱容量分级直接放射性核素膀胱造影（BVG DRC）评估儿童膀胱输尿管反流（VUR）。该技术可在不同膀胱容量分级下检测VUR。
在这项前瞻性研究中，33例疑似膀胱输尿管反流的患者（66个肾单位）接受了排尿膀胱尿道造影（VCUG）和BVG DRC检查。患者还接受了放射性核素肾扫描以评估肾皮质瘢痕。
在两项反流研究中，22例患者和36个肾单位被发现存在VUR。VCUG能检测出20个单位（55.50%），BVG DRC能检测出35个单位（97.2%）。VCUG的检测准确率为77.8%，BVG DRC的检测准确率为98.6%。DMSA扫描显示膀胱容量分级与瘢痕形成之间存在正相关。
与传统DRC一样，BVG DRC是一种敏感且准确的检测方法。它提供了关于膀胱充盈时反流现象的额外信息。膀胱容量分级技术在VUR分级方面优于传统DRC。
