Magnetic resonance imaging apparatus

Patent metadata

Field	Value
Publication number	US-9770187-B2
Application number	US-201514861393-A
Country	US
Kind code	B2
Filing date	Sep 22, 2015
Priority date	Sep 30, 2014
Publication date	Sep 26, 2017
Grant date	Sep 26, 2017

Abstract

A magnetic resonance imaging apparatus according to an embodiment includes a controller and a generator. The controller divides a plurality of slice regions that are sequentially arranged into a first group including two non-sequential slice regions and a second group including a slice region positioned between the two non-sequential slice regions and acquires data from the slice regions for each of the groups. When acquiring data from at least one of the two non-sequential slice regions, the controller acquires the data after applying a pre-sat pulse to a position between the two non-sequential slice regions. When acquiring data from the slice region positioned between the two non-sequential slice regions, the controller acquires the data after applying a pre-sat pulse to a position of at least one of the two non-sequential slice regions.

First claim

What is claimed is:

1. A magnetic resonance imaging apparatus comprising:
processing circuitry configured to
divide a plurality of slice regions sequentially arranged into a first group and a second group, and acquire data of the slice regions for each of the groups, the first group including two non-sequential slice regions, the second group including a slice region positioned between the two non-sequential slice regions; and
generate images of the plurality of slice regions on a basis of the acquired data, wherein
when acquiring data from at least one of the two non-sequential slice regions, the processing circuitry acquires the data after applying a pre-sat pulse to a position between the two non-sequential slice regions, and
when acquiring data from the slice region positioned between the two non-sequential slice regions, the processing circuitry acquires the data after applying a pre-sat pulse to a position of at least one of the two non-sequential slice regions.

2. The magnetic resonance imaging apparatus according to claim 1 ,
wherein the processing circuitry acquires the data from the plurality of slice regions divided into a plurality of groups, and
wherein the processing circuitry sets pre-sat pulse application regions in each of the groups in such a manner that the larger a value indicating a quantity of groups is, the larger each of the pre-sat pulse application regions is.

3. The magnetic resonance imaging apparatus according to claim 1 , wherein the processing circuitry acquires the data from the plurality of slice regions after further applying a pre-sat pulse to an outside of a region that collectively encloses the plurality of slice regions therein.

4. The magnetic resonance imaging apparatus according to claim 1 ,
wherein the processing circuitry is further configured to set an imaging condition, and
wherein when setting the imaging condition, the processing circuitry causes a display to display information indicating positions to which the pre-sat pulses are to be applied.

5. The magnetic resonance imaging apparatus according to claim 4 , wherein the processing circuitry causes the information indicating the positions to which the pre-sat pulses are to be applied, for each of the groups.

6. A magnetic resonance imaging apparatus comprising:
processing circuitry configured to
divide a plurality of slice regions included in a multi slice imaging process into a first group and a second group, and acquire data of the slice regions included in the first group and data of the slice region included in the second group, the first group including two slice regions that are not positioned adjacent to each other, the second group including a slice region interposed between the two slice regions; and
generate images of the plurality of slice regions on a basis of the acquired data, wherein
when acquiring the data of the first group, the processing circuitry acquires the data after applying a pre-sat pulse to a position of the slice region that is interposed between the two slice regions and is included in the second group, and
when acquiring the data of the second group, the processing circuitry acquires the data after applying a pre-sat pulse to a position of at least one of the two slice regions.

Assignees

• Toshiba Medical Sys Corp

Inventors

• Umeda Masaaki
• Sugiura Satoshi
• Furudate Naoyuki
• Kusahara Hiroshi
• Nagashima Masaaki

Classifications

• A61B5/7214

  using signal cancellation, e.g. based on input of two identical physiological sensors spaced apart, or based on two signals derived from the same sensor, for different optical wavelengths · CPC title

• G01R33/4835

  of multiple slices · CPC title

• A61B5/055 Primary

  involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging · CPC title

• G01R33/4838

  using spatially selective suppression or saturation of MR signals · CPC title