Abstract
Contrast agents are used extensively in vascular imaging and are an essential part of most radiographic examinations such as angiography, computed tomography (CT) and magnetic resonance imaging (MRI). In general, contrast agents change a specific property of an organ with regard to its surrounding tissues thereby increasing the signal-to-noise ratio of blood and allowing improved imaging of a targeted vessel. The exact method by which this improved imaging is accomplished depends upon the type of examination being performed. With examinations such as upper gastrointestinal series, intravenous urography or CT scans, contrast is used to increase the density of a specific organ system or vessel relative to the surrounding tissues. Therefore, high molecular weight elements such as barium or iodine are ingested or injected into the body.
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Grant, E.G., Melany, M.L. (2000). Vascular Imaging with Sonographic Contrast Agents. In: AbuRahma, A.F., Bergan, J.J. (eds) Noninvasive Vascular Diagnosis. Springer, London. https://doi.org/10.1007/978-1-4471-3837-2_34
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DOI: https://doi.org/10.1007/978-1-4471-3837-2_34
Publisher Name: Springer, London
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