Hi Christoph, > unfortunately we have only measured one phase difference image and no magnitude image at all. We adjusted at the SIEMENS syngo software for the gradient filedmap sequence at the contrast panel only the reconstruction of the phase image. You can find a screenshot of this image attached. Are you sure that the data is not saved anywhere? > Can we obtain a .vdm file somehow from this phase image we have only measured? Are magnitude data extractable from this phase image? ah, that beats me. From my understanding, I would guess "no", but cannot tell you for sure. Perhaps Jesper or Chloe could confirm, as they wrote the toolbox in the first place. Cheers, Marko -- ____________________________________________________ PD Dr. med. Marko Wilke Facharzt für Kinder- und Jugendmedizin Leiter, Experimentelle Pädiatrische Neurobildgebung Universitäts-Kinderklinik Abt. III (Neuropädiatrie) Marko Wilke, MD, PhD Pediatrician Head, Experimental Pediatric Neuroimaging University Children's Hospital Dept. III (Pediatric Neurology) Hoppe-Seyler-Str. 1 D - 72076 Tübingen, Germany Tel. +49 7071 29-83416 Fax +49 7071 29-5473 [log in to unmask] http://www.medizin.uni-tuebingen.de/kinder/epn ____________________________________________________