CT acquisition and measurement
BEST
The CT scans were performed using a 64-detector row spectral CT scanner (IQon Spectral CT, Philips Healthcare, Best, The Netherlands), with standard institutional scanning parameters as follow: 120 kVp, 50–100 mAs, auto mA, 0.4–0.5 s rotation time, pitch 1.203–1.234, 2-mm slice thickness, and 2-mm intervals.All CT images were reviewed on the Picture Archiving and Communications System (PACS), using a DICOM Conformance (Synapse version 3.2.0, FUJIFILM Medical Systems USA’s Synapse® PACS System, USA). All measurements and data collection were performed by one of the co-authors (Patsorn S). Before actual data collection, 35 pilot cases were used for estimating intraclass correlation coefficient (ICC) between the radiology trainee (Patsorn S) and a certified radiologist (NS). ICC and their 95% confidence interval (CI) of measuring sternal length, the height from TOX to INL, LVImage analysis were performed using the methods as follow. First, the level of maximal width of the left ventricular base (LVComputed tomography scan demonstrating axial (The heights of the LVBased on Lee et al. ’s study in Korea