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Pulmonary Vascular Disease: Pulmonary Arterial Hypertension |

Cardiovascular Parameters of Chest CT Scan in Estimating Pulmonary Arterial Pressure in Patients With Pulmonary Hypertension

Mengxi Li, MD; Shouyang Wang, MD; Weiquan Lin, MD; Jinhui Li, MD; Qingsi Zeng, CCP; Jian Wang, PhD
Author and Funding Information

Guangzhou Institute of Respiratory Disease, Guangzhou, China


Copyright 2016, American College of Chest Physicians. All Rights Reserved.


Chest. 2016;149(4_S):A496. doi:10.1016/j.chest.2016.02.518
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Extract

SESSION TITLE: Pulmonary Arterial Hypertension

SESSION TYPE: Original Investigation Slide

PRESENTED ON: Sunday, April 17, 2016 at 01:00 PM - 02:00 PM

PURPOSE: To develop a formula to compute mean pulmonary arterial pressure (MPAP) by chest computerized tomography (CT), and to verify its accuracy and reliability.

METHODS: 85 patients who had taken chest CT and right heart catheterization (RHC) were recruited. The pulmonary arterial systolic pressure (PASP), pulmonary arterial diastolic pressure (PADP) and MPAP of each subject were measured and recorded by right heart catheterization (RHC). The diameters of the ascending aorta (dAA), descending aorta (dDA) and main pulmonary artery (dMPA), Cobb angle, diameters of right ventricle (dRV), diameters of left ventricle (dLV) were measured by means of chest CT scans. Systolic blood pressure (SBP) was measured using electronic sphygmomanometer. A linear regression equation was generated in 56 patients to estimate PAP based on chest CT values, 29 patients were used to test the accuracy of the formula.

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