2025年3月9日 · Patent ductus arteriosus or arteriosum (PDA) is a congenital cardiac anomaly where there is persistent patency of the ductus arteriosus, a normal connection of the fetal …

2015年12月26日 · Patent ductus arteriosus (PDA) is defined as incomplete closure and patency of the ductus arteriosus beyond functional closure after birth.

Patent ductus arteriosus is a type congenital heart disease where there is persistent patency of the ductus arteriosus, which is a fetal structure connecting the aorta and pulmonary artery, and …

It normally closes spontaneously within 24 to 48 hours after birth due to increased oxygen tension and reduced prostaglandin levels. Failure of this closure results in a patent ductus arteriosus …

2012年11月23日 · Small incidental PDAs can be identified on chest MDCT angiography timed for either the pulmonary arteries or the aorta. Using multiplanar reformations, one can assess …

2024年11月26日 · Based on these results, we hypothesized and evaluated three radiographic features of PDA: cardiothoracic ratio, upper heart width to maximum heart width ratio, and …

Initial chest X-ray shows cardiomegaly. CT ratio was 0.59. Pulmonary edema in both lungs without pleural effusion can be seen (A). The patient's cardiomegaly and pulmonary edema …

2024年1月3日 · Patent ductus arteriosus (PDA) is the persistent vascular structure beyond the early neonatal period, causing left-to-right shunt between the aorta and PA with subsequent …

2022年1月13日 · Filling in of the aortopulmonary window is a good sign, but other causes of mediastinal masses or adenopathy can mimic this appearance. Demonstration of this finding …

Patent Ductus Arteriosus (PDA). Upper: Sagittal reconstruction of contrast-enhanced cardiac CT shows a tubular communication (yellow arrow) between the Aorta (Ao) and the pulmonary …