多次曝光膀胱造影术用于诊断膀胱肿瘤是很有价值的,是一种比较理想的诊断方法,基本上能达到发现肿瘤、确定肿瘤的大小和浸润程度。这种诊断技术几年来已较普遍地被采用,而且又有了些改进。然而,作者认为以往采用的多次曝光膀胱造影术虽然有所改进,却仍存在着一定缺点——适应症的受限,操作时间较长、病人痛苦增加等等。例如;对比剂不论是分次等量膀胱注入或一次膀胱注入,分次等量排出的方法,所用的总剂量都比较大(约需量250～300毫升以上)。等量的膀胱注入或排出约为3～次,那末,注入或排出所需要的时间势必延长,然则,除体位可能移动影响效果外,又可能增加病人痛苦。因此,作者在常用的多次曝光膀胱造影术方面又作了改进。根据实践证明,经过改良了的多次曝光膀胱造影效果与常用 Multiple exposure of bladder imaging for the diagnosis of bladder cancer is valuable, is an ideal diagnostic method, can basically find the tumor, to determine the size of the tumor and degree of infiltration. This diagnostic technique has been adopted more commonly in recent years, and some improvements have been made. However, the author believes that although the multiple exposure of conventional cystography has been improved, there are still some shortcomings - limited indications, longer operation time, increased patient suffering and so on. For example; contrast agent, whether it is divided into equal volume of bladder injection or a bladder injection, the same amount of discharge method, the total dose used are relatively large (about the required amount of 250 to 300 ml). The same amount of bladder injection or discharge about 3 ~ times, then the time required for injection or discharge is bound to extend, however, in addition to the position may affect the effect of movement, but also may increase the patient’s pain. Therefore, the author has made some improvements in the commonly used multiple exposure cystography. Proved according to practice, after the improved multiple exposure of bladder imaging and commonly used