Axial pulmonary trunk diameter variations during the cardiac cycle
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ORIGINAL ARTICLE
Axial pulmonary trunk diameter variations during the cardiac cycle Yasin Sarıkaya1 · Sevtap Arslan1 · Onur Taydaş1 · Yasin Erarslan1 · Orhan Macit Arıyürek1 Received: 23 February 2020 / Accepted: 30 April 2020 © Springer-Verlag France SAS, part of Springer Nature 2020
Abstract Purpose Previous studies have shown a correlation between axial pulmonary trunk diameter (PTD) on chest computed tomography (CT) and pulmonary artery pressure. However, it is not known whether the PTD slices measured on chest CT have been recorded during the systolic or diastolic phase. The aim of this study was to demonstrate the variations in PTD during the cardiac cycle by measuring coronary CT angiography (CCTA) images. Methods A retrospective analysis was made of 101 patients who underwent CCTA for coronary artery disease assessment. CCTA images were reconstructed during a full cardiac cycle and measurements were taken of the systolic and diastolic PTD and ascending aorta diameter (AAD) from the same slice by two independent observers. Results Inter-observer agreement was excellent (intraclass correlation coefficient = 0.99) for all CT measurements. The mean systolic PTD of all patients was 26.3 ± 3.6 mm and the mean diastolic PTD was 22.8 ± 3.2 mm (p
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