Fifty-percent diluted contrast medium provides acceptable image quality in cerebral angiography
Journal: European Journal of Radiology
Year: 2026

Purpose: Cerebral angiography is essential for neuro-endovascular treatment but carries a risk of contrast-induced nephropathy (CIN).Although dilution of iodinated contrast medium may reduce this risk, its impact on diagnostic image quality has not been fully clarified.This study evaluated whether 50% diluted contrast medium provides sufficient diagnostic confidence during preoperative angiography for unruptured cerebral aneurysms.Methods: Twenty-two patients with unruptured anterior circulation