Self-gated cardiac cine MRI
نویسندگان
چکیده
منابع مشابه
Automated rectilinear self-gated cardiac cine imaging.
ECG-based gating in cardiac MR imaging requires additional patient preparation time, is susceptible to RF and magnetic interference, and is ineffective in a significant percentage of patients. "Wireless" or "self-gating" techniques have been described using either interleaved central k-space lines or projection reconstruction to obtain MR signals synchronous with the cardiac cycle. However, the...
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P. Chalasani, D. N. Sandman, M. Crowe, O. P. Simonetti, E. Wu, J. Carr, A. Larson Advocate Illinois Masonic Medical Center, Chicago, Illinois, United States, Northwestern University, Chicago, Illinois, United States, Ohio State University, Columbus, Ohio, United States Introduction: Electrocardiogram (ECG)-gating uses an R-wave trigger to synchronize segmented cine data acquisition to the cardi...
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Background Self-gated free-breathing 3D cardiac cine MRI has been widely introduced, which provides similar image quality and functional measurements as breath-hold technique [1-3]. In self-gated free-breathing cardiac cine MRI, respiratory and cardiac motions are unpredictable during the acquisition especially in retrospective reconstruction. Therefore, nonuniform k-space distribution is a maj...
متن کاملFree-Breathing 3D Imaging of Right Ventricular Structure and Function Using Respiratory and Cardiac Self-Gated Cine MRI
Providing a movie of the beating heart in a single prescribed plane, cine MRI has been widely used in clinical cardiac diagnosis, especially in the left ventricle (LV). Right ventricular (RV) morphology and function are also important for the diagnosis of cardiopulmonary diseases and serve as predictors for the long term outcome. The purpose of this study is to develop a self-gated free-breathi...
متن کاملCardiac tagging with breath-hold cine MRI.
A method is presented for measuring myocardial deformation in a breath-hold with tagged cine MRI. Tagged cine images of human hearts are obtained in arbitrary oblique planes on a standard imager with as few as four heartbeats. The scan time has been reduced 16- to 64-fold from previous techniques.
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ژورنال
عنوان ژورنال: Magnetic Resonance in Medicine
سال: 2003
ISSN: 0740-3194,1522-2594
DOI: 10.1002/mrm.10664