Rawas M, Tao H
J Can Assoc Radiol. 1985 Dec;36(4):301-3.
There are many reasons for what is apparently a benign renal cyst being hyperdense on computed tomography (CT). A previous intravascular contrast material injection (intravenous urogram or arteriogram) within one to three days is cited as one of the possible causes. This prospective study of 13 patients with renal cyst was designed to investigate such a possibility. None of the patients had a hyperdense renal cyst on delayed CT scan following contrast injection. We conclude that intravenous contrast material is not a cause of hyperdensity of a renal cyst on CT.
在计算机断层扫描（CT）上，明显为良性的肾囊肿表现为高密度有多种原因。在一至三天内曾进行血管内造影剂注射（静脉肾盂造影或动脉造影）被认为是可能的原因之一。这项对13例肾囊肿患者的前瞻性研究旨在调查这种可能性。在注射造影剂后的延迟CT扫描中，没有患者出现高密度肾囊肿。我们得出结论，静脉造影剂不是CT上肾囊肿高密度的原因。
