MR Angiography: Contrast-Enhanced Acquisition Techniques.

Prashant Nagpal, Thomas M Grist

Journal: Magnetic resonance imaging clinics of North America 2023;31(3):493-501

PMID: 37414474

Full Text on Elsevier Science View on PubMed

Abstract

Contrast-enhanced MR angiography (CE-MRA) is a frequently used MR imaging technique for evaluating cardiovascular structures. In many ways, it is similar to contrast-enhanced computed tomography (CT) angiography, except a gadolinium-based contrast agent (instead of iodinated contrast) is injected. Although the physiological principles of contrast injection overlap, the technical factors behind enhancement and image acquisition are different. CE-MRA provides an excellent alternative to CT for vascular evaluation and follow-up without requiring nephrotoxic contrast and ionizing radiation. This review describes the physical principles, limitations, and technical applications of CE-MRA techniques.

Address: Cardiovascular Imaging, Department of Radiology, University of Wisconsin-Madison, School of Medicine and Public Health, 600 Highland Avenue, Madison, WI 53705, USA. Electronic address: [email protected].; Radiology, University of Wisconsin Madison, E3/366 600 Highland Avenue, Madison, WI 53792, USA.

DOI: 10.1016/j.mric.2023.04.007

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MeSH Terms: Humans, Magnetic Resonance Imaging, Magnetic Resonance Angiography, Contrast Media, Imaging, Three-Dimensional