Contrast-induced nephropathy

Contrast-induced nephropathy (CIN) is a purported form of kidney damage in which there has been recent exposure to medical imaging contrast material without another clear cause for the acute kidney injury.

Despite extensive speculation, the actual occurrence of contrast-induced nephropathy has not been demonstrated in the literature. Analysis of observational studies has shown that radiocontrast use in CT scanning is not causally related to changes in kidney function.