- Patent Title: Magnetic resonance imaging apparatus and SAR evaluation apparatus
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Application No.: US16132850Application Date: 2018-09-17
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Publication No.: US11022668B2Publication Date: 2021-06-01
- Inventor: Takafumi Ohishi
- Applicant: Canon Medical Systems Corporation
- Applicant Address: JP Otawara
- Assignee: Canon Medical Systems Corporation
- Current Assignee: Canon Medical Systems Corporation
- Current Assignee Address: JP Otawara
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JPJP2017-178905 20170919
- Main IPC: G01R33/561
- IPC: G01R33/561 ; G01R33/385 ; G01R33/28

Abstract:
A magnetic resonance imaging apparatus according to the present embodiment includes processing circuitry and imaging control circuitry. The processing circuitry selects a human body model corresponding to a subject from human body models. The processing circuitry estimates local specific absorption rates (SARs) at evaluation points determined using the selected human body model, based on the selected human body model and an amplitude and/or phase of the RF pulse in an imaging protocol for magnetic resonance imaging scheduled to be performed on the subject. The processing circuitry determines whether or not the estimated local SARs fall below a local reference value. The imaging control circuitry executes the imaging protocol by using an amplitude and phase of the RF pulse which make the local SARs fall below the local reference value.
Public/Granted literature
- US20190086499A1 MAGNETIC RESONANCE IMAGING APPARATUS AND SAR EVALUATION APPARATUS Public/Granted day:2019-03-21
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