Thoracic Aorta Dimension Changes During Systole and Diastole: Evaluation with ECG-Gated Computed Tomography.

Background: This study was conducted to characterize the differences in the dimensions between systole and diastole in thoracic aorta in Chinese population with electrocardiogram (ECG)-gated multidetector computed tomography angiography (CTA) scans.

Methods: The CTAs of 56 patients (mean age 58.2 ± 17.