Invention Grant
- Patent Title: Methods and systems for estimating transmit attenuation for a magnetic resonance imaging scan
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Application No.: US16101199Application Date: 2018-08-10
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Publication No.: US11175367B2Publication Date: 2021-11-16
- Inventor: Anand Kumar Venkatachari , Ling Sun , Wei Sun
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: McCoy Russell LLP
- Main IPC: G01R33/58
- IPC: G01R33/58 ; G01R33/46 ; G01R33/565 ; G01R33/24

Abstract:
Various methods and systems are provided for correcting transmit attenuation of an amplifier of a transmit radio frequency (RF) coil for use in a magnetic resonance imaging (MRI) system. In one example, a method includes setting a reference value of transmit attenuation for an amplifier of a transmit radio frequency (RF) coil, acquiring a two-dimensional B1 field map with the transmit attenuation set at the reference value, determining a mean flip angle from the B1 field map, determining a transmit attenuation correction value based on a prescribed flip angle and the mean flip angle, correcting the reference value of transmit attenuation with the transmit attenuation correction value to obtain a final value of transmit attenuation, and performing an MRI scan with the transmit attenuation set at the value.
Public/Granted literature
- US20200049786A1 METHODS AND SYSTEMS FOR ESTIMATING TRANSMIT ATTENUATION FOR A MAGNETIC RESONANCE IMAGING SCAN Public/Granted day:2020-02-13
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