Pulmonary Artery | Position

Aortic Valve amd Pulmonary Valve – Oblique Section through the Valves

The aortic valve (AV) lies central to many structures including the right ventricular outflow tract (RVOT), pulmonary valve(PV), left atrium (LA), right atrium (RA), and superior vena cava (SVC). aorta from above

47681 heart cardiac aortic valve aorta right atrium right atrial appendage left atrial appendage LAA RAA pulmonary valve right ventricular outflow tract left atrium LA RA RVOT anatomy normal position relations Davidoff art Davidoff MD

Position of the aorta relative to the subpulmonary conus

07954eW.800 aorta aortic valve infundibulum RVOT right ventricular outflow tract position relation MRIscan Davidoff MD

Aorta and Pulmonary Artery – Normal Size and Position

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

Common Conotruncal Abnormalities

D Transposition of the Great Vessels

Anterior Aorta and Posterior Pulmonary Artery

48321 CT of patient with an anterior aorta and a large posterior pulmonary artery TGA transposition heart aorta position 48320 48321 DTGA Courtesy Dr Hyun Woo Goo from Korea and Dr Laureen Sena

48320

48320 CT of patient with an anterior aorta and a large posterior pulmonary artery TGA transposition 48320 48321 DTGA Courtesy Dr Hyun Woo Goo from Korea and Dr Laureen Sena

Anterior Aorta

Transposition of the Great Vessels

This is an angiogram of the RV, showing an anteriorly placed aorta, a VSD filling the LV, and a posteriorly positioned smaller MPA. The catheter courses via the IVC into the RV. The findings are consistent with TGA and in this case a D-TGA, though it is impossible to identify the position of the aortic valve in relation to the PA in this lateral projection. An associated VSD and subpulmonary stenosis and or PS is implied by the small sized PA. Courtesy Ashley Davidoff MD 01487 code CVS heart cardiac transpoistion of the great arteries DTGA VSD subpulmonary stenosis imaging radiology angiography

DTGA

07258b02 anterior aorta posterior pulmonary artery position connection subaortic conus D TGA TGV D transposition of the great vessels D transposition of the great arteries dextro rightward MRI Davidoff MD

Corrected Transposition

Transposition

LTGA

28999b01 heart cardiac aorta pulmonary artery RVOT conotruncal malformation LTGA L TGV transposition of the great vessels transposition of the geat arteries corrected transposition position connection relation embryology CTscan Davidoff MD 28994 28995 28996 28997 28998 28999

Aorta Anterior and to the Left – L TGA

07304b01 anterior aorta posterior pulmonary artery position connection subaortic conus L TGA L TGV L transposition of the great vessels L transposition of the great arteries levo leftward MRI Davidoff MD

L – Loop DORV

06394c02Ls embryology bilateral conus DORV growth resorbtion normal mitral to aortic continuity transposition L transposition corrected transposition double outlet right ventricle Davidoff art copyright 2009 all rights reserved

Branch Pulmonary Arteries

01559b03 aorta pulmonary artery lung ligamentum arteriosum aortic arch thickened walls relations grosspathology 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

Anomalous Origin of the RPA

01533.800 lung trachea right pulmonary artery fx malposition left right pulmonary artery arising from right pulmonary artery fx tracheamalacia tracheomalacia fx hyperinflated right lung fx mediastinal shift dx pulmonary sling pulmonary angiogram pulmonary angiography Davidoff MD 01533c01 01531 01530.800 01532.800 01533.800 01533c02

Anomalous Origin of the RPA

01533c02 lung trachea right pulmonary artery fx malposition left right pulmonary artery arising from right pulmonary artery fx tracheamalacia tracheomalacia fx hyperinflated right lung fx mediastinal shift dx pulmonary sling pulmonary angiogram pulmonary angiography Davidoff MD 01533c01 01531 01530.800 01532.800 01533.800 01533c02

Truncus Arteriosus

01651.800 aorta pulmonary arteries branch pulmonary artery fx origin of the branch PA fromthe posterior aspect of the aorta dx TA truncus arteriosus MRI T1 weighted CHD