Motion Corrected 3D Whole-Heart Vessel Wall Imaging
نویسندگان
چکیده
منابع مشابه
Motion Corrected 3D Whole-Heart Vessel Wall Imaging
Background Coronary atherosclerosis is not necessarily stenotic, due to outward remodeling of the vessel wall. Plaque burden correlates with risk of coronary disease (Kubo et al, J Am Coll Cardiol 2007) and direct visualization is desired. A 3D flow independent approach for vessel wall imaging was proposed recently (Andia et al, MRM 2013), based on subtraction of data with (T2prep(+)) and witho...
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PURPOSE To develop a respiratory motion correction framework to accelerate free-breathing three-dimensional (3D) whole-heart coronary lumen and coronary vessel wall MRI. METHODS We developed a 3D flow-independent approach for vessel wall imaging based on the subtraction of data with and without T2-preparation prepulses acquired interleaved with image navigators. The proposed method corrects b...
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Background First-pass perfusion imaging using CMR is an important tool for diagnosing coronary artery disease (CAD), but most clinical techniques are limited in their spatial coverage. While compressed-sensing (CS) holds promise for highly accelerated perfusion spiral imaging, CS techniques suffer from blurring artifacts in the setting of respiratory motion. Spiral pulse sequences have multiple...
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Background Atherosclerotic plaque evaluation has gone beyond simply determining stenosis percentage to characterizing specific plaque components, such as necrotic lipid core and intraplque hemorrhage, in order to detect high-risk subclinical lesions. Diffusion-weighted imaging (DWI) provides excellent contrast-to-noise for identifying plaque components ex vivo [1] and is shown feasible for in v...
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Introduction: Susceptibility-weighted imaging (SWI) has been utilized as a useful contrast mechanism in MRI that accentuates the paramagnetic properties of blood products (1,2). With the use of both magnitude and phase images, SWI can provide improved conspicuity of venous blood vessels and other sources of susceptibility effects (2). Typically, the SWI acquisition uses a high-resolution, three...
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ژورنال
عنوان ژورنال: Journal of Cardiovascular Magnetic Resonance
سال: 2016
ISSN: 1532-429X
DOI: 10.1186/1532-429x-18-s1-p323