Mashhad Razavi Hospital Razavi Journal of Medicine 3115-753X 11 1 2023 02 28 Evaluation of the Relationship between Chest Radiography Findings and Pulmonary Artery Pressure during Right Heart Catheterization 34 37 118497 10.30483/rijm.2023.254422.1242 EN Ali Eshraghi Department of Cardiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran Farveh Vakilian Department of Cardiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran Negar Morovatdar Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran Shahin Farsi Department of Cardiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran Journal Article 2022 05 29 <strong>Background</strong>: Pulmonary artery hypertension is difficult to diagnose because of its nonspecific symptoms. Although echocardiography and more accurately catheterization can recognize pulmonary artery pressure, chest X-ray is widely used because of its availability.<br /> <br /><strong>Objectives:</strong> This study was to evaluate the accuracy of chest radiography parameters for the estimation of pulmonary artery pressure.<br /> <br /><strong>Methods: </strong>This cross-sectional study included 81 subjects with a definite diagnosis of pulmonary artery hypertension. Mean pulmonary artery pressure (mPAP) was determined by catheterization. Hilar enlargement, projection of the right heart border (PRHB), hilar enlargement + PRHB, and the ratio of these parameters to the thoracic diameter were compared to mPAP to evaluate correlations.<br /> <br /><strong>Results</strong><strong>:</strong> The average mPAP was 74.7±21 (ranging from 28 to 120 mmHg). Spearman's test revealed that mPAP had a significant correlation with a hilar enlargement (r=0.489, P<0.001), hilar/thoracic ratio (r=0.482, P<0.001), hilar enlargement + PRHB (r= 0.517, P<0.001), and hilar + PRHB/thoracic ratio (r=463, P<0.001).<br /> <br /><strong>Conclusion</strong><strong>:</strong> Hilar enlargement and hilar/thoracic ratio on the chest radiography are proper parameters for the estimation of pulmonary artery pressure.<br />  Catheterization Chest radiography Pulmonary artery hypertension Pulmonary artery pressure https://journal.razavihospital.ir/article_118497_a9e2411c7f0342590a8ccb88af08f42c.pdf