基于同伦l0范数最小化重建的三维动态磁共振成像
李嫣嫣1,李律2,李雪松1,*(
),郭华2
),郭华2
3D Dynamic MRI with Homotopic l0 Minimization Reconstruction
Yan-yan LI1,Lv LI2,Xue-song LI1,*(),Hua GUO2
),Hua GUO2
图1. 黄金角变密度螺旋叠加的采集策略.首先沿着层方向进行采集；所有层保持固定角度的螺旋交错叶采样，在时间维度，旋转黄金角度继续进行螺旋交错叶采样
Fig.1. The acquisition strategy of stack of golden angle variable density spiral. The acquisition loop is in slice direction first. After spiral interleaves with a fixed angle being sampled in all the slices, in the time dimension, the next spiral interleaves which are rotated by a golden angle will be sampled
