Figure 1.

Flowchart of patient inclusion and exclusion criteria: in Scenario 1, every patient was imaged using an anteroposterior scout view, calcium-scoring CT that was planned based on the scout view, and CCTA with a scan range planned using calcium-scoring CT. In Scenario 2, we simulated a CCTA scan for every patient, with the scan range planned based on the anteroposterior scout view, while omitting calcium-scoring CT. Abbreviations: ECG, electrocardiogram; CCTA, coronary computed tomography angiography; CAS-CT, coronary artery calcium-scoring computed tomography.