Inversion group (IG) fitting: A new T1 mapping method for modified look‐locker inversion recovery (MOLLI) that allows arbitrary inversion groupings and rest periods (including no rest period)

The Modified Look‐Locker Inversion Recovery (MOLLI) technique is used for T1 mapping in the heart. However, a drawback of this technique is that it requires lengthy rest periods in between inversion groupings to allow for complete magnetization recovery. In this work, a new MOLLI fitting algorithm (inversion group [IG] fitting) is presented that allows for arbitrary combinations of inversion groupings and rest periods (including no rest period).

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