Abdominal Aortic Calcium and CAD-RADS 2.0

The data acquisition protocol was tailored to each patient's heart rate and rhythm. Specifically, a prospectively ECG-triggered volume scan was used to account for heart rates and rhythms, capturing predefined scanning areas during R-R intervals, especially in instances of frequent ectopic beats or irregular heart rates noted during pre-scan ECG monitoring. Imaging system parameters included a gantry rotation time of 0.275 seconds, collimation of 0.5 mm, tube voltage settings ranging from 100 kV to 120 kV, and a tube current-time product between 200 mAs and 450 mAs, with adjustments based on the patient's BMI.