Severe right iliac
Same patient as
with Palmaz stent.
Peripheral Angioplasty is performed to
open narrowed or blocked arteries which improves the blood flow to the
This treatment helps preserve kidney function
or control high blood pressure, in the case of renal artery stenosis. It
also relieves the symptoms of claudication for those with PVD, and can
help to avoid the need for amputation of a limb due to loss of arterial
top image is
prior to the
The bottom image
the stent after
In many cases, the interventional radiologist
can treat a blocked blood vessel at the same time the diagnostic angiogram
is performed. Interventional radiologists treat arteries narrowed by atherosclerosis
or other conditions with techniques called angioplasty and stent placement.
These techniques avoid the need for surgery. There is no incision, no stitches,
and patients usually return to normal activity shortly after the procedure.
Following is a description of some procedures
RCT physicians perform, along with images that show the dramatic findings
and results produced using these techniques.
In this technique, the interventional
radiologist inserts a very small balloon attached to a thin tube (catheter)
into a blood vessel through a small nick in the skin. The catheter is threaded
under x-ray guidance to the site of the blocked artery. The balloon is
inflated at the site of blockage to open the artery.
Often, a small metal scaffold / tube,
called a stent, is inserted to hold the blood vessel open. These devices
are used to �prop� the artery open from the inside. Stents are either �self
expanding� or are mounted on a balloon and inserted into the artery by
inflating the balloon.
Stents allow the successful treatment of
some areas of blockage that respond poorly to angioplasty. In the larger
arteries of the body, stents have improved the long-term results of interventional
treatment of peripheral vascular disease and other conditions.
Click on the following areas for information
about conditions commonly treated with peripheral angioplasty.