General Electric Company

Ge Precision Healthcare LLC

Anand Kumar Venkatachari

Wei Sun

Ling Sun

Fan Yang

Kun Wang

Franco Rupcich

Yanting Huo

Arindam Dutta Choudhury

Maggie M Fung

Benjamin Gray

Methods and systems are herein provided for determining operating conditions of a magnetic resonance (MR) scanner based on data of one or more implants of a patient and storing the data of the one or more implants are provided. In one examples, a method comprises obtaining data of one or more implants of a patient from one or more sources; determining one or more configurations of each of the one or more implants; displaying, via a graphical user interface (GUI), the data and the one or more configurations; determining a recommendation configuration based on the one or more configurations; determining a selected configuration via user input to the GUI; and determining operating conditions of an MRI scanner based on the selected configuration for an MRI exam.

Systems and methods for magnetic resonance conditional implant data configuration and storage

A method for imaging a subject using a magnetic resonance imaging (MRI) system includes determining a tailored radio frequency (RF) pulse sequence having a plurality of refocusing pulses. In the method, a target peak RF pulse value is determined and a transfer function to convert a first refocusing pulse of the plurality of refocusing pulses to a modified refocusing pulse with the target peak RF pulse value is also determined. A modified RF pulse sequence is generated based on the transfer function and the plurality of refocusing pulses. Finally, magnetic resonance (MR) signals from the subject are acquired based on the modified RF pulse sequence and the medical image of the subject is generated based on the acquired MR signals.

System and method to reduce specific absorption rate in magnetic resonance imaging

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 three-dimensional Bfield map with the transmit attenuation set at the reference value, determining a plurality of mean flip angles for a plurality of slice locations in a pre-scan imaging volume from the Bfield map, determining a transmit attenuation correction value for each of the slice locations based on a prescribed flip angle and the mean flip angle determined for the respective slice location, correcting the reference value of transmit attenuation with the transmit attenuation correction value at each of the slice locations to obtain a final value of transmit attenuation for each of the slice locations, and performing an MRI scan with the transmit attenuation set at the value.

Methods and systems for estimating transmit attenuation for a magnetic resonance imaging scan

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 Bfield map with the transmit attenuation set at the reference value, determining a mean flip angle from the Bfield 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.

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Brookfield, WI, United States of America

Anand Kumar Venkatachari