University of Utah Research Foundation;Siemens Healthcare GmbH
发明人:
Sunil Goraksha Patil,Henrik Odeen,Bhat Himanshu,John Roberts,Dennis L. Parker
申请号：
US16148135
公开号：
US20200100677A1
申请日:
2018.10.01
申请国别(地区):
US
年份:
2020
代理人:
摘要：
A method, system and article of manufacture is disclosed. The method includes providing a spatial navigator outside of a thermal therapy region； receiving a plurality of analog-to-digital conversion (ADC) readouts from an MRI device at a plurality of time points, wherein the ADC readouts comprise a first ADC readout acquired at a first time point, and one or more additional ADC readouts acquired at subsequent time points； processing the ADC readouts to obtain a frequency of the spatial navigator at each of the time points； obtaining a main magnetic field (B0) drift of the MRI device based on the frequency of the spatial navigator at a particular time point and the frequency of the spatial navigator at the first time point； and obtaining the temperature change at the particular time point based on the B0 drift.
