contrast medium


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contrast medium

n.
A substance, such as barium or air, used in radiography to increase the contrast of an image. A positive contrast medium absorbs x-rays more strongly than the tissue or structure being examined; a negative contrast medium, less strongly.

contrast medium

n
(Medicine) med a radiopaque substance, such as barium sulphate, used to increase the contrast of an image in radiography

con′trast me`dium



n.
a radiopaque substance introduced into a part of the body to provide a contrasting background for the tissues in an x-ray examination.
[1950–55]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.contrast medium - a substance that is opaque to x-rays; when administered it allows a radiologist to examine the organ or tissue it fills
medium - (biology) a substance in which specimens are preserved or displayed
References in periodicals archive ?
Acute kidney injury in the critically ill: Is iodinated contrast medium really harmful?
This new catheter navigation solution, designed for use in conjunction with Philips' interventional X-ray systems, enhances the precision and accuracy of stent placement, while at the same time significantly reducing contrast medium usage.
An X-ray procedure may take only a few minutes for a bone X-ray, or more than an hour for more involved procedures, such as those using a contrast medium.
In this study, it was aimed to investigate the effects of non ionic low osmolar contrast medium administration on oxidant/antioxidant status and NO levels in rat kidney tissues.
Sonazoid, which is developed in close collaboration with GE Healthcare, the licensor, is a minimally invasive contrast medium characterized by prolonged ability to maintain its contrasting attributes.
Coronary angiography and left ventriculographywere performed using just 80 cc lopromid (Ultravist 300, Schering AG, Germany): a nonionic low osmolar contrast medium containing approximately 300 mg/mL iodide.
Myelography, radiographic examination of the spinal cord following injection of a contrast medium, is a useful aid for the diagnosis of spinal-cord disease in mammals.
Failure of gel barrier formation occurred only in those cases in which >300 mL of contrast medium was injected and blood was drawn immediately after the radiographic procedure.
In a study of 129 patients at high risk of nephropathy because of diabetes or renal impairment, the rate of contrast medium nephropathy was 3% with iso-osmolar iodixanol and 26% with a low-osmolar medium.
Key Words: acquired immunodeficiency syndrome, contrast medium, hypertriglyceridemia, intravenous lipid emulsion, lipase, lipids, pancreatitis, total parenteral nutrition
About 80% to 90% of contrast medium is used for CT and 10% to 20% for cardiac catheterization procedures.
An isotonic, aqueous solution containing iodixanol, a non-ionic, dimeric contrast medium, available in three strengths containing either 150 mg, 270 mg or 320 mg iodine per ml.