Magnetic resonance imaging apparatus and scanning-condition setting method
AssigneesKabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
InventorSatoshi Sugiura
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Abstract
A Signal-to-Noise (SN) ratio maintained scanning-condition recalculating unit re-sets a value of a scanning parameter other than an SN ratio included in scanning conditions when the size of a Field Of View (FOV) to be set for a scan is changed, so as to make the SN ratio of an image to be taken under after-change scanning conditions equal to or larger than the SN ratio of an image assumed to be taken under before-change scanning conditions. A scanning-condition edit/scan positioning unit then sets scanning conditions based on the value of the scanning parameter recalculated by the scanning-condition recalculating unit.
Claims20
A magnetic resonance imaging apparatus that images an inside of a subject by using a magnetic resonance phenomenon, the apparatus comprising:
- a scanning-condition recalculating unit that recalculates a value of a scanning parameter other than a Signal-to-Noise (SN) ratio included in scanning conditions when a size of a Field Of View (FOV) to be set for a scan is changed, so as to make an SN ratio of an image to be taken under after-change scanning conditions be one of a value equal to and a value larger than an SN ratio of an image assumed to be taken under before-change scanning conditions;
- and
- a scanning-condition setting unit that sets a scanning condition based on the value of the scanning parameter recalculated by the scanning-condition recalculating unit.
A magnetic resonance imaging apparatus that images an inside of a subject by using a magnetic resonance phenomenon, the apparatus comprising:
- a scanning-condition recalculating unit that recalculates a value of a scanning parameter other than a Signal-to-Noise (SN) ratio included in scanning conditions when a size of a Field Of View (FOV) to be set for a scan is changed, so as to make an SN ratio of an image to be taken under after-change scanning conditions be one of a value equal to and a value larger than an SN ratio of an image assumed to be taken under before-change scanning conditions;
- and
- a scanning-condition notifying unit that provides a notice of the value of the scanning parameter recalculated by the scanning-condition recalculating unit.
A scanning-condition setting method of a magnetic resonance imaging apparatus, the method comprising:
- recalculating a value of a scanning parameters other than an SN ratio included in scanning conditions when a size of an FOV to be set for a scan is changed, so as to make an SN ratio of an image to be taken under after-change scanning conditions be one of a value equal to and a value larger than an SN ratio of an image assumed to be taken under before-change scanning conditions;
- and
- setting a scanning condition based on the recalculated value of the scanning parameter.
Dependencies are inferred from the claim text.