In-flow signal reduction for T1 weighted imaging in a magnetic resonance imaging system
AssigneeGeneral Electric Company
InventorsYoshihiro Tomoda, Masanori Ozaki
Life of this patent
Estimating the term…
Abstract
An magnetic resonance apparatus 100 comprises dummy-slice defining unit 93. The dummy-slice defining unit 93 defines a dummy slice a in a region lying in a z-direction with respect to a group gr1, and a dummy slice b in a region lying in a (−z)-direction with respect to the group gr1. The dummy-slice defining unit 93 also defines a dummy slice c in a region lying in the z-direction with respect to a group gr2, and a dummy slice d in a region lying in the (−z)-direction with respect to the group gr2. The dummy-slice defining unit 93 further defines the dummy slices a, b, c, d so that the slice thickness of the dummy slices a, b, c, d is greater than that of slices L1 to L12.
Claims15
A magnetic resonance apparatus comprising:
- a slice defining unit for defining a plurality of slices arranged in a first direction in a region including blood;
- a grouping unit for dividing said plurality of slices into a plurality of groups;
- a dummy-slice defining unit for defining a first dummy slice in a region lying in said first direction with respect to said group, and a second dummy slice in a region lying in a direction opposite to said first direction with respect to said group, said dummy-slice defining unit defining said first and second dummy slices so that a slice thickness of each of said first and second dummy slices is greater than that of each of said plurality of slices;
- a scanning section for repetitively performing a sequence group including a plurality of sequences for exciting slices included in said group, said first dummy slice, and said second dummy slice;
- and
- an image producing unit for producing an image of each of said plurality of slices based on data acquired by performing said sequence group.
A magnetic resonance apparatus comprising:
- a slice defining unit for defining a plurality of slices arranged in a first direction in a region including blood;
- a dummy-slice defining unit for defining a first dummy slice in a region lying in said first direction with respect to said plurality of slices, and a second dummy slice in a region lying in a direction opposite to said first direction with respect to said plurality of slices, said dummy-slice defining unit defining said first and second dummy slices so that a slice thickness of each of said first and second dummy slices is greater than that of each of said plurality of slices;
- an input section for inputting information representing a slice thickness of a dummy slice, wherein said dummy-slice defining unit defines a slice thickness of a dummy slice based on the information input from said input section,
- a scanning section for repetitively performing a sequence group including a plurality of sequences for exciting said plurality of slices, said first dummy slice, and said second dummy slice, respectively;
- and
- an image producing unit for producing an image of each of said plurality of slices based on data acquired by performing said sequence group.
Dependencies are inferred from the claim text.