Compressed sensing acceleration of radial 3‐D alternating Look‐Locker T1 mapping

The radial 3-D alternating Look-Locker <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:semantics> <mml:mrow> <mml:msub><mml:mrow><mml:mi>T</mml:mi></mml:mrow> <mml:mrow><mml:mn>1</mml:mn></mml:mrow> </mml:msub> </mml:mrow> <mml:annotation>$$ {T}_1 $$</mml:annotation></mml:semantics> </mml:math> mapping acquisition was successfully accelerated by up to a factor of 12 with various CS models. The best-performing model was a subspace-constrained reconstruction, which utilized spatial total variation and locally low-rank regularization.