Revision 4 for 'Cavoatrial junction'All Revisions
It is an important landmark to recognize because it marks an optimum site for central venous catheter tip placement.
There are a variety of methods to estimate position of the cavo-atrial junction on chest radiographs:
- two vertebral body levels below the level of the carina 2
- intersection of bronchus intermedius with the right heart border or inflection of the right heart border with the SVC contour 3
- note: superior right heart border may not always be formed by the right atrium and may be formed by the right atrial appendage or left atrium 4
- located within one vertebral space of T5/6 (i.e. between T4 and T8) 4