Prospective ECG-triggering Coronary CT Angiography (CCTA): How Safe is this Procedure?

With the rapid development of CT technology, the procedure of Coronary CT Angiography (CCTA) has been increasingly used and widely available for the diagnosis of Coronary Artery Disease (CAD). Other than having its advantages to improve the sensitivity and specificity in the detection of CAD, CCTA also associated with high radiation dose. Several dose-reduction strategies have been introduced to reduce radiation dose during CT procedure. However, one of the technique, namely prospective ECG-triggering CCTA provides tremendous radiation dose reduction to patient. Therefore, this article provides information on the prospective ECG-triggering technique and how it can further reduce the radiation dose to patient.