Currarino G, Weinberg A, Putnam R
Radiology. 1977 Apr;123(1):149-50. doi: 10.1148/123.1.149.
A small amount of cystographic contrast material is resorbed regularly from the bladder into the blood stream during routine cystourethrography in children. If the agent remains in the bladder for a relatively long period of time, the amount of iodine absorbed may be large enough to produce an excretory urogram.
在儿童常规膀胱尿道造影期间，少量膀胱造影剂会定期从膀胱吸收进入血流。如果造影剂在膀胱内停留较长时间，吸收的碘量可能会大到足以产生排泄性尿路造影。
