Specialized radiology, using x-rays, generally requires absorption, introduction or injection of contrast agents according to the requested examination (see the examination process)
For example, digestive studies use barium (white X-ray opaque liquid) to study the digestive system.
The musculo-skeletal infiltration involve injecting a mixture of anti-inflammatory and anesthetic in or around a joint to relieve pain often due to osteoarthritis or inflammation.
After your registration, the technologist fills a questionnaire with you about your health and possible allergies. Explanations concerning the exam are provided by the technologist or the radiologist.
Esophagus, upper digestive tract (stomach), Intestinal follow through (small intestine):
You will be asked to drink barium (white X-ray opaque liquid). The progression of the barium is monitored on a screen by the radiologist who takes images in different positions. The duration of the exam is approximately 10 minutes for the study of the esophagus and the upper digestive tract (stomach). It varies between 1 hour and 3 hours for the study of intestinal follow through (small intestine).
Double contrast barium enema:
Barium ( X-ray opaque liquid) is introduced into the colon through a cannula into the rectum. The progression of the barium is monitored on a screen by the radiologist who takes images in different positions.
The purpose of the exam is to find the cause of pain or any problem. Under local anesthesia, a contrast medium (x-ray opaque dye) is injected into the affected joint and the x-rays taken are interpreted by the radiologist.
The purpose of the exam is to relieve pain. Under local anesthesia, a contrast medium (x-ray opaque dye) is injected into the joint or the diseased area to ensure the correct position of the needle. Thereafter a mixture of anesthetic and anti-inflammatory (cortisone) is injected into the joint or the specific area. In the case of osteoarthritis and recurrent pain, an injection of a viscosupplementation, provided by the patient (eg. Synvisc, Durolane..) could be made into a joint.
Distensive arthrography of the shoulder:
The purpose of the exam is to give back the capsule (shell of the joint) its normal elasticity and mobility. Under local anesthesia, a contrast medium (X-ray opaque dye) is injected into the shoulder joint followed by injection of a mixture of anti-inflammatory (cortisone) and 10 cc of anesthetic in the joint to distend the capsule, reduce pain and decrease inflammation. It is important to perform physiotherapy exercises after your exam, unless otherwise directed by your doctor .
Pre-MRI arthrography (arthro-MRI):
This exam is designed to enhance magnetic resonance images. In a radiology room, under local anesthesia, a product (Gadolinium) which enhances magnetic resonance images is injected with an occasional contrast (dye opaque to X-rays). The examination continues in the MRI room.
This exam is designed to relieve recurrent pain in the spine. A mixture of anesthetic and cortisone is injected into the periphery of the facet joints located on either side of the spine.
The purpose of this exam is to relieve recurrent pain secondary to irritation of the nerve roots as they exit the lumbar spine. Under radiological control, a mixture of an anesthetic and cortisone is injected around the foramen (the space between two vertebrae allowing the nerve to exit ).
Pregnancy can be a contraindication for infiltration under fluoroscopy (X-ray). Infiltration could then be done under ultrasound guidance.
If you are allergic to iodine you must notify the staff when making your appointments or the technologist. Often it will still be possible to perform the infiltration without the injection of iodine
Digital specialized radiology:
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