منابع مشابه
3D Cardiac Cine Imaging Using a 3D Cones Trajectory
Introduction: Cine imaging is a widely accepted clinical tool for assessing cardiac wall motion and performing volume measurements. Conventional cine sequences acquire multiple cardiac phases of a single 2D slice during a breathheld scan, with multiple slices collected over multiple breath-holds. While respiratory artifacts are minimized and the temporal resolution is high for each slice, it ca...
متن کاملFlow Imaging: Cardiac Applications of 3D Cine Phase-Contrast MRI
Global and regional blood flow dynamics are of pivotal importance to cardiac function. Fluid mechanical forces can affect hemolysis and platelet aggregation, as well as myocardial remodeling. In recent years, assessment of blood flow patterns based on time-resolved, three-dimensional, three-directional phase-contrast magnetic resonance imaging (3D cine PC MRI)(1) has become possible and rapidly...
متن کاملAccelerating cardiac cine 3D imaging using k-t BLAST.
By exploiting spatiotemporal correlations in cardiac acquisitions using k-t BLAST, gated cine 3D acquisitions of the heart were accelerated by a net factor of 4.3, making single breathhold acquisitions possible. Sparse sampling of k-t space along a sheared grid pattern was implemented into a cine 3D SSFP sequence. The acquisition of low-resolution training data, which was required to resolve al...
متن کامل3D free-breathing cardiac cine imaging with respiratory and cardiac self-gating and 3D motion correction
INTRODUCTION Free-breathing cardiac cine imaging with respiratory and cardiac self-gating provides flexibility and convenience for patient scans. Here we propose a 3D radial cardiac cine imaging technique that improves upon self-gating by adding 3D respiratory motion correction. The 3D respiratory motion signals are derived from multiple projections through the data used for image reconstructio...
متن کاملComprehensive Segmentation of Cine Cardiac MR Images
A typical Cardiac Magnetic Resonance (CMR) examination includes acquisition of a sequence of short-axis (SA) and long-axis (LA) images covering the cardiac cycle. Quantitative analysis of the heart function requires segmentation of the left ventricle (LV) SA images, while segmented LA views allow more accurate estimation of the basal slice and can be used for slice registration. Since manual se...
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ژورنال
عنوان ژورنال: Journal of Magnetic Resonance Imaging
سال: 1999
ISSN: 1053-1807,1522-2586
DOI: 10.1002/(sici)1522-2586(199905)9:5<751::aid-jmri21>3.0.co;2-7