ASL troubleshooting

Owned by Paul Macey (admin)
Last updated: Mar 07, 2017
2 min read

Paul modified the file asl_perf_subtract in ASLtbx to save the input parameters if the gobal VERBOSE option is on. (Those changes are shown at the bottom of this page.)

  • Turn on VERBOSE mode

Alternatively: 

>> global VERBOSE
>> VERBOSE = true


  • Run the ASL preprocessing; for each new CBF map calculated, this will save a file with the parameters used in the ASLtbx calculation of CBF maps. 

The file is a matlab file "input2asl..." in the subject's ASLpreprocess folder.

  • View the parameters:
  1. look in the command window
  2. From the CSPM ASL menu, select "Show ASLtbx parameters" and select the input file. You will get something in the Command Window as below:

Changes in asl_perf_subtract file that allow saving

Copy and paste the following lines

% PMM - save parameters
global VERBOSE
if isempty(VERBOSE), VERBOSE = false; end
if VERBOSE
p = fileparts(Filename(1,:));
save ([p,filesep,'input2asl_perf_subtract_inCSPM.mat'])
try
cspm_displink2folder(p,'Input state to ASL calculation saved in "input2asl_perf_subtract_inCSPM.mat" in ')
catch, end
end
% End PMM

so that it looks like this (see line numbers):

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