Another test, called a voiding cystourethrogram or a VCUG, can show how urine moves through the ureterovesical junction.

另一项检查，称为排尿性膀胱尿道造影（VCUG），能显示尿液流经输尿管膀胱连接部的情况。

A radionuclide cystogram uses a similar procedure as the VCUG, except that it uses a radioactive tracer injected into a blood vessel.

放射性核素膀胱显像和VCUG的过程相似，只不过需要静注放射性示踪剂。