Method for acquiring magnetic resonance data, magnetic resonance imaging apparatus, computer program, and electronically readable storage medium

A magnetic resonance imaging apparatus for acquiring magnetic resonance data of an object, the magnetic resonance imaging apparatus comprising:

• a control device;
• and
• a memory storing instructions that, when executed by the control device, cause the magnetic resonance imaging apparatus to:
• image a slice group whose slices define a contiguous imaging volume, the slice group containing a first number of slices;
• acquire a first number of concatenations of the magnetic resonance data for subgroups of the first number of slices, each one of the subgroups containing a respective second number of slices depending on the first number of concatenations, the subgroups being defined by subdividing the contiguous imaging volume into at least two separate contiguous sub-volumes, with at least two subgroups being defined for each sub-volume, each of the at least two subgroups containing non-adjacent slices in each respective sub-volume;
• perform shimming to increase field homogeneity in the contiguous imaging volume;
• and
• acquire the magnetic resonance data of each subgroup by restricting the shimming to at least the sub-volume associated with each respective subgroup.

A non-transitory computer-readable medium having instructions stored thereon that, when executed by one more processors of a magnetic resonance imaging apparatus, cause the magnetic resonance imaging apparatus to acquire magnetic resonance data of an object by:

• imaging a slice group whose slices define a contiguous imaging volume, the slice group containing a first number of slices;
• acquiring a first number of concatenations of the magnetic resonance data for subgroups of the first number of slices, each one of the subgroups containing a respective second number of slices depending on the first number of concatenations, the subgroups being defined by subdividing the contiguous imaging volume into at least two separate contiguous sub-volumes, with at least two subgroups being defined for each sub-volume, each of the at least two subgroups containing non-adjacent slices in each respective sub-volume;
• performing shimming to increase field homogeneity in the contiguous imaging volume;
• and
• acquiring the magnetic resonance data of each subgroup by restricting the shimming to at least the sub-volume associated with each respective subgroup.