Haaga J R, Zelch M G, Alfidi R J, Stewart B H, Daugherty J D
AJR Am J Roentgenol. 1977 Apr;128(4):621-4. doi: 10.2214/ajr.128.4.621.
Percutaneous antegrade pyelography and percutaneous nephrostomy can be easily performed using CT guidance. CT provides cross-sectional images which facilitate accurate needle placement into the renal pelvis. CT is capable of detecting subtle density differences within the tissues so that even renal pelvises which do not contain contrast material and are not dilated can be accurately punctured. In addition to these procedures, CT accurately displays the perinephric space so that assessment of complications is possible. Four of five attempted percutaneous nephrostomies and two antegrade pyelograms were successfully performed using CT gudance.
在CT引导下，经皮顺行肾盂造影和经皮肾造瘘术都能轻松完成。CT提供横断面图像，有助于将针准确置入肾盂。CT能够检测组织内细微的密度差异，这样即使不含造影剂且未扩张的肾盂也能被准确穿刺。除了这些操作外，CT能准确显示肾周间隙，以便对并发症进行评估。在CT引导下，五例经皮肾造瘘术中有四例以及两例顺行肾盂造影术均成功完成。
