Angiography studies blood vessels that are not visible on standard x-rays. Arteriography is used for the exploration of arteries and phlebography for veins.
This examination is very useful for the diagnosis of vascularization disorders or before surgery in order to precisely identify the path of the vessels.
At the arterial level, she looks for abnormalities such as narrowing (stenosis) or other obstacles to the flow of blood. We can explore the renal, pulmonary, cerebral, retinal, limb …
A dilatation of the vessel can be performed in the narrowed part: this is called angioplasty.
At the venous level, it is part of the assessment of phlebitis (clot in a vein) and determines the consequences.
This test uses X-rays and an iodine-based contrast medium.
blood vessels Its principle is to make visible (or opaque) arterial or venous vessels. A catheter is introduced into the vessel to inject the contrast medium that mixes with the blood: the vascular system becomes visible on X-rays thanks to the radio-opaque properties of iodine.
Angioplasty is a medico-surgical technique for modifying a blood vessel, most commonly an artery.
It can be performed without surgical intervention by needle aspiration of the vessel: it is then called “percutaneous”.
One of the most common angioplasty is coronary angioplasty (PTCA), where the probe is introduced through the femoral artery in the groin or through the radial artery. Other angioplasties affect the renal arteries, the arteries of the legs or the carotid artery.
If significant stenosis and / or obstruction is observed in the coronary vessels, balloon angioplasty may be performed if necessary, in the same direction or later. Balloon angioplasty is performed by inflating the narrow balloon in a narrow region of the vein, and the stenosis is enlarged. The balloon can be made in the same vein more than one stenosis or more than one stenosis in the same seansta or different sessions. If necessary, in addition to the ball, stent (cage) with the ball is placed in this area.
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