Application progress of dual-low scanning technique in coronary artery CT Angiography

With the continuous development of CT technology, coronary artery CT angiography (CCTA) has been clinically recognized as a rapid and accurate examination method. At the same time, its radiation effects and the toxic effects of contrast agents have also attracted everyone′s attention. At present, many new techniques for reducing radiation dose and iodine dosage of contrast medium are used in clinical practice. This paper aims to review the dual-low scanning techniques and progress of CCTA in recent years. Key words: CT; Coronary artery; Radiation dose; Contrast agent