Free-breathing cardiac 3D cine MRI at 3T using golden-ratio Cartesian radial sampling and variable flip angle

We demonstrate a continuous 3D balanced SSFP cardiac cine imaging in humans at 3Tesla. The technique is based on a golden-ratio Cartesian radial sampling with isotropic spatial resolution. The SAR reduction is achieved with a variable flip angle scheduling in which the flip angle is linearly weighted based on the distance from the k-space origin within the 2D phase encoding plane. Results demonstrate adequate depiction of the blood and myocardium borders, which allows for quantification of the ventricular function.

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