what is interventional angiogram
Diagnostic and Interventional Angiography. Angiography is a procedure in which blood vessels (arteries or veins) are injected with a dye that shows up on X-Ray to detect narrowing or blockages.he procedure may be for diagnostic purposes (Diagnostic Angiography) at which time only X-Ray images of the blood vessels are obtained; or the procedure may include treatment (Interventional Angiography) which includes inserting a small stent to inflate and open the vessel. Find A Doctor.