Application of low tube voltage coronary CT angiography with low-dose iodine contrast agent in patients with a BMI of 26–30 kg/m2

Aim To evaluate the feasibility of using a reduced radiation dose and reduced iodine intake (i.e., “double low”: low tube voltage/low iodine dose contrast agent) scanning protocol and the adaptive iterative dose reduction (AIDR) reconstruction algorithm in coronary heart disease (CHD) patients with a BMI of 26–30 kg/m 2 . Materials and methods One-hundred and seventy-nine consecutive CHD patients with a body mass index >26 kg/m² but Results The volume CT dose index (CTDIvol), dose–length product (DLP), effective dose (ED), and iodine intake of patients in “double low” group A were significantly lower than the “conventional” group B ( p p p Conclusions Use of 320-row CT with a “double low” scanning protocol for CCTA in patients with a BMI of 26–30 kg/m 2 not only provided images of diagnostic quality but also reduced both radiation dose and iodine intake during scanning.