Tangent Line Between Aorta and Heart Border

45756d01b lung pulmonary artery pulmonary vein main pulmonary artery MPA right descending pulmonary artery bronchus arteriole normal CXR plain X-ray Davidoff MD

Descending RPA – Measure Before the Bifurcation

45756d04 lung pulmonary artery pulmonary vein main pulmonary artery MPA right descending pulmonary artery bronchus arteriole normal CXR plain X-ray Davidoff MD

Relative Size of Upper Lobe and Lower Lobe Vessels

45756d06 lung pulmonary artery pulmonary vein main pulmonary artery MPA right descending pulmonary artery bronchus arteriole normal CXR plain X-ray Davidoff MD

Bronchiole to Arteriole Ratio

45756d06 lung pulmonary artery pulmonary vein main pulmonary artery MPA right descending pulmonary artery bronchus arteriole normal CXR plain X-ray Davidoff MD

Aorta and Pulmonary Artery –  Normal Size and Position

27467c01 aorta pulmonary valve pulmonary artery SVC size position normal CTscan Davidoff MD

Aorta to Pulmonary Artery Ratio

34769c07b02  heart cardiac aortic valve pulmonary valve conus infundibulum RVOT right ventricular outflow tract pulmonary artery normal size aorta to PA ratio aorta to LA ratio anatomy CTscan Davidoff MD

Normal relationship and Size – Arterioles and Bronchioles

In this CT of a normal patient we see two levels of the RLL with the segmental bronchioles and arterioles branching dichotomously and simultaneously. Note again the similarity in size and shape through these levels of division, a form that is maintained in the normal person until they reach the terminal bronchiole.

42455Courtesy Ashley Davidoff MD 42455 lung artery bronchus normal anatomy size applied anatomy applied biology

Applied Biology

Enlarged Pulmonary Artery  Normal Aorta

42315.800 aorta pulmonary artery enlarged MPA dilated dx PDA patent ductus arteriosus CTscan Davidoff MD

Normal Pulmonary Artery Enlarged Aorta –  Ascending Aortic Aneurysm

42358.800 aorta fx enlarged MPA pulmonary artery aneurysm of the ascending aorta CTscan Davidoff MD

Heart Failure Redistribution Pulmonary Congestion

44659c03.800 chest heart cardiac pulmonary vessels pulmonary artery pulmonary veins bronchiole arteriole ratio bronchovascular bundle enlarged CHF heart failure redistribution cephalization CXR palin X-ray Davidoff MD