B0 & B1 mitigation using time-shifted spokes
Revision as of 17:54, 6 October 2015 by Guerin (talk | contribs) (→Fitting the through-slice B0 gradient map)
Citation
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What this code does
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Download files
Click here to download the Matlab code and here for the test dataset. You'll also need to download this zip file with a few utilities and add the un-zipped folder to your Matlab path.
If you are wondering how exactly I obtained the B0 and through-slice B0 gradient maps, download this zip file.
Instructions
Fitting the through-slice B0 gradient map
To perform this step, download and un-zip the file processPrescanData.zip. First, run the Matlab routine dump_g.m and then the routine dump_b1maps.m.
- Note #1: These tools will only work for data acquired on Siemens scanners ***
- Note #2: These tools assume that there are two meas*.dat files in the working folder containing the raw data of two GRE acquisitions with TE # 1 = 6 ms and TE # 2 = 8 ms. I did not include my own files because they are too big for this Wiki. THese meas*.dat files can be saved after you have acquired the GRE data using the Twix scanner utility ***