CT scan-assessed high right ventricle-left ventricle ratio of the heart predicts major adverse cardiovascular events in PH ...

The gold standard is CT pulmonary angiography ... During the procedure, dye is injected into a vein in your arm and travels to the blood vessels in your lungs. As you lie inside the CT scanner ...

which can assess the flow of blood in veins. If your doctor suspects a clot in your lungs, you might undergo a chest computerized tomography (CT) scan with a simultaneous pulmonary angiogram.