How do we diagnose a Thoracic Aortic Aneurysm?
If an aneurysm is large enough it can be visible on a chest x-ray. Smaller aneurysms are very hard to see with x-ray though.
Echocardiography is a vascular ultrasound of the heart and beginning part of the thoracic aorta. Sometimes it can be used to see an aortic aneurysm but most of the aorta in the chest cannot be seen with ultrasound.