Magnetic resonance imaging apparatus and imaging planning method
A magnetic resonance imaging apparatus according to an embodiment includes a receiving unit and a determining unit. The receiving unit collectively receives settings of an imaging region on an image of a subject with respect to at least part of imaging protocols in a series of imaging protocols performed in an examination. The determining unit determines the propriety of the setting with respect to each imaging protocol included in the part of the imaging protocols before imaging is started using the part of the imaging protocols.
1. A magnetic resonance imaging apparatus comprising:
processing circuitry configured to:
determine, when continuously performing a plurality of imaging protocols that image a same imaging region of a subject, before starting the plurality of imaging protocols, propriety regarding setting of the imaging region for each of the plurality of imaging protocols, based on an index value related to at least one of an influence on the subject and an influence on image quality; and
display, when an imaging protocol of which setting of the imaging region has been determined as improper is included in the plurality of imaging protocols, on a display, information serving as a guide to properly set the imaging region so that continuous performing of the plurality of imaging protocols is not stopped at the imaging protocol of which setting of the imaging region has been determined as improper.
2. A setting support method comprising:
determining, when continuously performing a plurality of imaging protocols that image a same imaging region of a subject, before starting the plurality of imaging protocols, propriety regarding setting of the imaging region for each of the plurality of imaging protocols, based on an index value related to at least one of an influence on the subject and an influence on image quality; and
displaying, when an imaging protocol of which setting of the imaging region has been determined as improper is included in the plurality of imaging protocols, on a display, information serving as a guide to properly set the imaging region so that continuous performing of the plurality of imaging protocols is not stopped at the imaging protocol of which setting of the imaging region has been determined as improper.
3. The magnetic resonance imaging apparatus according to claim 1 , wherein the information serving as the guide indicates swapping a phase encode direction and a read-out direction.
4. The magnetic resonance imaging apparatus according to claim 1 , wherein the information serving as the guide indicates a difference between a set angle and an allowable value thereof, the angle being an angle formed by a read-out direction of a slice set as the imaging region and a direction of a static magnetic field.
5. The magnetic resonance imaging apparatus according to claim 1 , wherein the processing circuitry uses, as the index value, an angle formed by a read-out direction of a slice set as the imaging region and a direction of a static magnetic field.
6. The magnetic resonance imaging apparatus according to claim 1 , wherein the processing circuitry uses, as the index value, a time rate of change in magnetic field strength (dB/dt).
7. The magnetic resonance imaging apparatus according to claim 1 , wherein the processing circuitry determines the propriety regarding the setting by comparing the index value and a predetermined threshold.
8. The magnetic resonance imaging apparatus according to claim 1 , wherein
the processing circuitry further receive, on an image for positioning, specifying of a slice to be imaged in the subject, and
the processing circuitry determines the propriety of the slice as the imaging region.