Susceptibility-Weighted Imaging: Clinical Angiographic Applications
نویسندگان
چکیده
منابع مشابه
Susceptibility-weighted imaging: technical aspects and clinical applications, part 2.
SUMMARY Susceptibility-weighted imaging (SWI) has continued to develop into a powerful clinical tool to visualize venous structures and iron in the brain and to study diverse pathologic conditions. SWI offers a unique contrast, different from spin attenuation, T1, T2, and T2* (see Susceptibility-Weighted Imaging: Technical Aspects and Clinical Applications, Part 1). In this clinical review (Par...
متن کاملClinical applications of neuroimaging with susceptibility-weighted imaging.
Susceptibility-weighted imaging (SWI) consists of using both magnitude and phase images from a high-resolution, three-dimensional, fully velocity compensated gradient-echo sequence. Postprocessing is applied to the magnitude image by means of a phase mask to increase the conspicuity of the veins and other sources of susceptibility effects. This article gives a background of the SWI technique an...
متن کاملSusceptibility-weighted imaging: technical aspects and clinical applications, part 1.
Susceptibility-weighted imaging (SWI) is a new neuroimaging technique, which uses tissue magnetic susceptibility differences to generate a unique contrast, different from that of spin density, T1, T2, and T2*. In this review (the first of 2 parts), we present the technical background for SWI. We discuss the concept of gradient-echo images and how we can measure local changes in susceptibility. ...
متن کاملImaging The Vasculature With Susceptibility Weighted Imaging: Applications And Analysis
71 Autobiographical Statement 74
متن کاملSusceptibility weighted imaging (SWI).
Susceptibility differences between tissues can be utilized as a new type of contrast in MRI that is different from spin density, T1-, or T2-weighted imaging. Signals from substances with different magnetic susceptibilities compared to their neighboring tissue will become out of phase with these tissues at sufficiently long echo times (TEs). Thus, phase imaging offers a means of enhancing contra...
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ژورنال
عنوان ژورنال: Magnetic Resonance Imaging Clinics of North America
سال: 2009
ISSN: 1064-9689
DOI: 10.1016/j.mric.2008.12.002