Hi Helmut, I checked it again and you're right. I found that the acquisition is *interleaved ascending* in my case starting with the odd numbers first. Thanks for the link, this might be useful some time :). greetings David 2014-07-08 13:41 GMT+02:00 Helmut Nebl < [log in to unmask]>: > Dear David, > > > the default interleaved acquisition scheme on Siemens scanners is foot to > head and depends on the number of slices: > - in case of an even number: 2 4 6 ... 1 3 5 ... > - in case of an odd number: 1 3 5 ... 2 4 6 ... > There might also be some vector in each of the DICOM files indicating the > acquisition times of the different slices, see > https://www.jiscmail.ac.uk/cgi-bin/webadmin?A2=ind1005&L=SPM&D=0&P=505716 > . > > > Best, > > Helmut > -- David Hofmann (M.Sc.) Institut für Medizinische Psychologie und Systemneurowissenschaften Von-Esmarch-Strasse 52 48149 Münster Tel: 0251/ 8352794 Mobil: 0152/ 09822352 Email: [log in to unmask] Institute of Medical Psychology and Systems Neuroscience University of Muenster Von-Esmarch-Str. 52 D-48149 Muenster, Germany Phone: +49 (0) 251 - 83 52794 Mobile: +49 (0) 152 - 09822352 E-Mail: [log in to unmask] http://campus.uni-muenster.de/medpsych.html