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  Contrast Media in Magnetic Resonance Angiography

Bongartz, G., Boos, M., & Scheffler, K. (2002). Contrast Media in Magnetic Resonance Angiography. In I. Arlart, G. Bongartz, & G. Marchal (Eds.), Magnetic Resonance Angiography (pp. 115-128). Berlin, Germany: Springer.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-8E06-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-8E07-4
Genre: Book Chapter

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 Creators:
Bongartz, GM, Author
Boos, M, Author
Scheffler, K1, Author              
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1External Organizations, ou_persistent22              

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 Abstract: While native magnetic resonance (MR) angiographic images are created by the inherent signal characteristics of different tissue components, such as flowing blood and the surrounding tissue, which derive mainly from the physical properties of motion within a magnetic field or within a gradient field, contrastenhanced (CE) MR angiography is based upon the contrast media (CM) effects on the relaxivity of blood. To date, several groups of CM exist which either shorten Tl relaxation or decrease T2 relaxation time. The most commonly applied group of CM are the gadolinium (Gd) compounds which have a strictly extracellular distribution. Their behavior within the circulation and also extravasation and renal excretion are comparable to iodinated CM in conventional radiology. The dominating Tl effect of Gd chelates facilitates bright blood MR angiography such that the previously known limitations of timeof-flight MR angiography can readily be overcome. These limitations are: loss of vascular signal along the vessel due to ongoing saturation, decreasing signal at slow flow conditions, signal voids at stenoses or bifurcations, and/or finally unacceptably long imaging times.

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 Dates: 2002
 Publication Status: Published in print
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 Identifiers: DOI: 10.1007/978-3-642-56247-1_8
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Title: Magnetic Resonance Angiography
Source Genre: Book
 Creator(s):
Arlart, IP, Editor
Bongartz, GM, Editor
Marchal, G, Editor
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Publ. Info: Berlin, Germany : Springer
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 115 - 128 Identifier: ISBN: 978-3-540-43975-2

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Title: Medical Radiology
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