Re: [Freesurfer] problems with dti data in magnetom skyra 3T

2012-02-22 Thread John Fredy
Dear Douglas, I don't use image compression. The series are new to me, I see that the images uses a multiframe encoding, there is 63 directions each direction encoded in a sigle image like a BOLD EPI sequence I will check again all the series Thanks for the reply John Ochoa Universidad de Antioq

Re: [Freesurfer] problems with dti data in magnetom skyra 3T

2012-02-22 Thread Douglas N Greve
It sounds like something went wrong with the conversion to nifti. Do you use image compression? Are you sure that the series is the correct one? doug John Fredy wrote: > Hello all, > > I am trying to use a set of dti data from a Magnetom Skyra 3T. I use > the dt_recon process with data from anot

[Freesurfer] problems with dti data in magnetom skyra 3T

2012-02-22 Thread John Fredy
Hello all, I am trying to use a set of dti data from a Magnetom Skyra 3T. I use the dt_recon process with data from another siemens of 1.5T without problems. With the Skyra 3T I have the following error in the log file: MRIresample(): error inverting matrix; determinant is nan, matrix is: Can so