School of Medicine, Clinical Radiology, University of Eastern Finland, Kuopio, Finland;
Department of Clinical Radiology, Kuopio University Hospital, Clinical Imaging Center, Kuopio, Finland.
In Vivo. 2021 Jul-Aug;35(4):2177-2185. doi: 10.21873/invivo.12489.
BACKGROUND/AIM: Dilatation of the main pulmonary artery (mPA) is a common incidental finding in chest imaging and often leads to consultation. The aim of this study was to determine the prevalence of mPA dilatation in a coronary artery CT angiography (CCTA) population.
The study investigated 985 consecutive patients scheduled for diagnostic CCTA. The transverse axial diameter of the mPA was measured. The prevalence of mPA dilatation was estimated using different reference values (Framingham Heart Study: 28.9 mm for males and 26.9 mm for females, Bozlar: 29.5 mm for both genders and Karazincir: 32.6 mm for males and 31.9 mm for females).
The patient mean age was 53.0±9.7 years (66.5% were women). Body surface area (BSA) correlated moderately with the mPA diameter (r=0.423, p<0.001). The prevalence of mPA dilatation varied from 5.9% (Karazincir) to 33.7% (Framingham Heart Study) in the overall study population.
The prevalence of mPA dilatation is high in a CCTA patient population when using a cut-off value from the Framingham Heart Study.
背景/目的：肺动脉主干扩张（mPA）是胸部影像学检查中的常见偶然发现，常导致会诊。本研究旨在确定冠状动脉 CT 血管造影（CCTA）人群中 mPA 扩张的患病率。
本研究调查了 985 例连续接受诊断性 CCTA 的患者。测量 mPA 的横截面积。使用不同的参考值（弗雷明汉心脏研究：男性 28.9 毫米，女性 26.9 毫米；Bozlar：两性均为 29.5 毫米；Karazincir：男性 32.6 毫米，女性 31.9 毫米）估计 mPA 扩张的患病率。
患者平均年龄为 53.0±9.7 岁（66.5%为女性）。体表面积（BSA）与 mPA 直径中度相关（r=0.423，p<0.001）。在整个研究人群中，mPA 扩张的患病率从 Karazincir 的 5.9%到 Framingham Heart Study 的 33.7%不等。
当使用 Framingham Heart Study 的截断值时，CCTA 患者人群中 mPA 扩张的患病率较高。
