I hope you’re all enjoying your day!

Working in Launchpad, I want to extract the bvals/bvecs from DTI dicoms obtained at Martinos Center. The dicoms have the following format:

MR1.3.12.2.1107.5.2.32.35006.2010052613553219211129919
MR1.3.12.2.1107.5.2.32.35006.2010052613553736471330196
MR1.3.12.2.1107.5.2.32.35006.201005261355429098330464
...

I receive error when I run dcm2niix (to extract the b values and b vectors):

Command:

dcm2niix -f dti <folder of dicoms>

The error I receive:

Warning: output folder invalid MR1.3.12.2.1107.5.2.32.35006.2010052614044051320551992 will try 
Error: unable to find any DICOM images in 
Conversion required 0.000000 seconds.

When I do the following steps to generate “treatable” dicoms, dcm2niix recognizes these dicoms:

1. copy Martinos Center dicoms to my local Mac

2. import dicoms into OsiriX

3. Export them as dicoms

4. copy the OsiriX-exported dicoms back to Launchpad

5. Run dcm2niix on the new dicoms

Since this copying back and forth takes a lot of time, I need a better way to convert the “crazy” Martinos Center dicoms into the “treatable” ones!

I would really appreciate your help.

Best,

Emad

Emad Ahmadi, MD
-----------------------------------------------
Research Fellow
Department of Radiology
Massachusetts General Hospital
Harvard Medical School

25 New Chardon Street, Suite 400
Boston, MA 02114
Tel: 617 726 5237
Email: emad@nmr.mgh.harvard.edu