Pulmonary Hypertension Parameters Assessment by Electrocardiographically Gated Computed Tomography: Normal Limits by Age, Sex, and Body Surface Area in a Chinese Population

Journal of Thoracic Imaging
Yinsu ZhuHaibin Shi

Abstract

Pulmonary hypertension (PH) parameters such as pulmonary artery or right ventricular size can be measured easily on computed tomography (CT). However, there are limited data on electrocardiographically (ECG) gated CT. We sought to determine age-specific and sex-specific normal reference values for PH parameters normalized by body surface area (BSA) using ECG-gated cardiac CT in a Chinese population. In total, we enrolled 519 non-PH patients undergoing ECG-gated CT coronary angiography and measured PH parameters, including main pulmonary artery (MPA) and right pulmonary artery (RPA) diameters and distension, the ratio of MPA to ascending aorta (AAO) diameter (MPA/AAO), and the ratio of right ventricular to left ventricular diameter (RV/LV). Maximum MPA and RPA diameters were also normalized to BSA (nMPA, nRPA). Age, sex, BSA, and body mass index (BMI) were variably associated with PH parameters. Age was an independent predictor of all PH parameters. The maximum MPA diameter (26.5±2.7 mm), maximum RPA diameter (20.9±3.0 mm), nMPA (15.8±2.0 mm/m), nRPA (12.4±2.0 mm/m), and RV/LV (0.85±0.11) increased with age. MPA/AAO (0.80±0.10), MPA, and RPA distension (25.4%±7.1%; 23.3%±6.7%) correlated negatively with age. Although absolute MP...Continue Reading

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Citations

May 15, 2020·Surgical and Radiologic Anatomy : SRA·Yasin SarıkayaOrhan Macit Arıyürek
Jun 11, 2020·Journal of Thoracic Imaging·Diana E LitmanovichJeffrey P Kanne

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Software Mentioned

Statistical Package for the Social Sciences
Syngo Circulation

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