Interventional Radiology - An Alternative to the Surgical Treatment

Jun 7 07:43 2010 john metthew Print This Article


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Interventional Radiology is an area of specialty within the field of radiology in which minimally invasive procedures are performed using image guidance. This encompasses any procedure that is invasive,Guest Posting usually involving the insertion of a needle, tube, catheter, or wire into the patient for diagnostic purposes or for treatment purposes. The images enable the Interventional Radiologist to guide these instruments through the body to the sites containing diseases.

The Interventional radiologists treat a wide range of medical conditions inside the body from outside the body by inserting various small instruments or tools with the use of various x-ray and imaging techniques such as CT scanners, MRI scanners and ultrasound scanners.

Some of the common interventional imaging modalities include fluoroscopy, computed tomography (CT), ultrasound (US), and magnetic resonance imaging (MRI). The ionizing radiation used for fluoroscopy and computed tomography may be potentially harmful to the patient and the interventional radiologist. On the other side of the coin, these methods have the advantages of being fast and geometrically accurate. Ultrasound is fast and inexpensive but suffers from image quality and tissue contrast problems. Magnetic resonance imaging provides superior tissue contrast. However, this is an expensive imaging modality that requires specialized instruments that do not interact with the magnetic fields present in the imaging volume.

Some of the common interventional radiology procedures are:

§        Angiography - An x-ray of the arteries and veins to detect blockage or narrowing of the vessels. The interventional radiologist can detect and treat the blockages by inserting a small stent which inflates and opens the vessel. This procedure is termed as balloon angioplasty.

§        Embolization – The procedure involves the insertion of a substance through a catheter into a blood vessel to stop hemorrhaging, or excessive bleeding.

§        Gastrostomy tubes - A gastrostomy tube that is a feeding tube is inserted into the stomach if the patient is unable to take food by mouth.

§        Intravascular ultrasound - The use of ultrasound inside a blood vessel to better visualize the interior of the vessel to be able to detect problems inside the blood vessel.

§        Stent placement – Stent, a tiny, expandable coil is placed inside a blood vessel at the site of a blockage and is expanded to open up the blockage.

§        Foreign body extraction - A catheter is inserted into a blood vessel to retrieve a foreign body in the vessel.

§        Needle biopsy – This procedure involves insertion of a small needle in almost any part of the body, guided by imaging techniques, to obtain a tissue biopsy. This type of biopsy can provide a diagnosis without surgical intervention. An example of this procedure is called the needle breast biopsy.

§        Blood clot filters - A small filter is inserted into a blood clot to catch and break up blood clots.

This medical procedure offers an alternative to the surgical treatment and eliminates the need for hospitalization, in some cases.

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for more information regarding: interventional radiology,computed tomography.  please visit:http://www.radiology-info.org

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john metthew
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