Abstract
Background 3D self-gated (SG) cine imaging with TrueFISP not only provides excellent contrast between myocardium and blood, but also eliminates the need for ECG set up and permits free-breathing acquisitions [1]. However, such Cartesian sampling-based techniques are commonly used at 1.5 T due to the eddy current and SAR problems as well as time-consuming on data acquisition under the Nyquist sampling criteria. To achieve time-efficient 3T cine imaging, a novel accelerated SG method, named SparseSG, was proposed using a tiny golden angle and compressed sensing [2].
Highlights
3D self-gated (SG) cine imaging with TrueFISP provides excellent contrast between myocardium and blood, and eliminates the need for ECG set up and permits free-breathing acquisitions [1]
Sequence A 3D hybrid radial sampling pattern was adopted for the SparseSG [1]
A compressed sensing method exploiting the image sparsity in k-t space was used for image reconstruction, effectively shortening the scan time and reducing SAR
Summary
3D self-gated (SG) cine imaging with TrueFISP provides excellent contrast between myocardium and blood, and eliminates the need for ECG set up and permits free-breathing acquisitions [1]. Such Cartesian sampling-based techniques are commonly used at 1.5 T due to the eddy current and SAR problems as well as time-consuming on data acquisition under the Nyquist sampling criteria. To achieve time-efficient 3T cine imaging, a novel accelerated SG method, named SparseSG, was proposed using a tiny golden angle and compressed sensing [2]
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