Non-contrast MRA using region-selective saturation pulse followed by non-region selective inversion recovery pulse to larger overlapped area
AssigneesKabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
InventorsShinichi Kitane, Tokunori Kimura, Yuichi Yamashita
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Abstract
A magnetic resonance imaging (MRI) apparatus acquires magnetic resonance (MR) data associated with a plurality of different delay times according to a pulse sequence in which a region-selective saturation pulse is first applied, a region-non-selective inversion recovery pulse is then applied, and then the magnetic resonance data is acquired, the delay time being defined as a period from the saturation pulse application time to the start of MR data acquisition. A plurality of blood flow image data respectively associated with the plurality of different delay times are created using the acquired MR data.
Claims18
A magnetic resonance imaging apparatus, comprising:
- a data acquiring unit that acquires a plurality of pieces of magnetic resonance data respectively associated with a plurality of different delay times according to a pulse sequence in which (a) a region-selective saturation pulse is first applied to a first region, (b) a region-non-selective inversion recovery pulse is then applied to a second region, and (c) then the magnetic resonance data is acquired, the delay time being defined as a period from a time of saturation pulse application to start of magnetic resonance data acquisition, the second region including and being larger than the first region;
- and
- a blood flow image creating unit that creates a plurality of pieces of blood flow image data also respectively associated with the plurality of different delay times, using the acquired magnetic resonance data.
A control method of a magnetic resonance imaging apparatus, the method comprising:
- acquiring a plurality of pieces of magnetic resonance data respectively associated with a plurality of different delay times according to a pulse sequence in which (a) a region-selective saturation pulse is first applied to a first region, (b) a region-non-selective inversion recovery pulse is then applied to a second region, and (c) then the magnetic resonance data is acquired, the delay time being defined as a period from a time of saturation pulse application to start of magnetic resonance data acquisition, the second region including and being larger than the first region;
- and
- creating a plurality of pieces of blood flow image data associated with the plurality of different delay times using the magnetic resonance data.
A magnetic resonance imaging apparatus, comprising:
- a data acquiring unit that acquires a plurality of pieces of magnetic resonance data according to a pulse sequence in which (a) a region-selective saturation pulse is first applied to a first region, (b) a region-non-selective inversion recovery pulse is then applied to a second region, and (c) then the magnetic resonance data is acquired, the second region including and being larger than the first region;
- and
- a blood flow image creating unit that creates a plurality of pieces of blood flow image data using the acquired magnetic resonance data.
Dependencies are inferred from the claim text.