Unofficial Double Inversion Recovery (DIR) for b-SSFP and nb-SSFP. The code is from the original repository: Pulseq.
Pulseq is an open source framework for the development, representation and execution of magnetic resonance (MR) sequences. A central contribution of this project is an open file format to compactly describe MR sequences suitable for execution on an MRI scanner or NMR spectrometer. MATLAB and C++ source code is provided for reading and writing sequence files. The main homepage for Pulseq is http://pulseq.github.io/.
The directories are organized as follows:
doc/- Contains the file specification and HTML source code documentationexamples/- Contains example sequence files (*.seq)src/- C++ class for reading sequence filesmatlab/- MATLAB code for reading, writing, modifying and visualizing sequence files
The main file of interest for applying DIR SSFP is in MATLAB directory with the name DI_bSSFP. You basically have to run the code with the desired parameters. The code will generate a sequence file with the name xx.seq in the same directory. Then, you can use this sequence file to run the sequence on your scanner via USB or Ethernet cable.
Note that the code is written for 3T Siemens scanners. Thus, you have to modify the code for other scanners. Furthermore, DIR is implemented using adiabatic inversion pulses. In the original source code, there is a function for generating adiabatic pulses. However, it is not compatible with Windows. Thus, I have modified the source code to be able to generate adiabatic pulses using cmd and anaconda. You have to check the main code for the path of the adiabatic pulse which is in matlab/+mr/makeAdiabaticPulse. Modify this code according to your path and it should work fine.
I have modified Pulseq source code to be able to generate adiabatic pulse using cmd and anaconda. Thus, this version of Pulseq is compatible only with Windows for DIR SSFP but can be used for other sequences on Linux and MacOS. Otherwise, main requirements is the same as Pulseq.
