trouble with DTI echo-planar distortion correction

Questions about BrainVisa usage and installation

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vnath
Posts: 2
Joined: Thu Apr 05, 2007 4:51 pm
Location: TOULOUSE

trouble with DTI echo-planar distortion correction

Postby vnath » Thu Oct 07, 2010 10:31 am

Hi everybody,

I work in TOULOUSE on a Philips 3T MRI system. I acquired DTI images with 1 T2 images and 15 b1000 directions. I import these data in my BrainVISA database. Then I try to run DTI echo-planar distortion correction. After few seconds, the following error message appear in the brainVISA window :


AimsCorrectionEpi: T2 and DW image are not squared



dans Correction des Distorsions Echoplanaires 4 Commande système terminée avec une valeur non nulle : 1

RuntimeError
neuroProcesses.py (2167) in _processExecution:
result = process.execution( self )
DiffusionEPICorrection.py (109) in execution:
apply( context.system, command )
neuroProcessesGUI.py (1300) in system:
ret = apply( ExecutionContextGUI.system, (self,) + args, kwargs )
neuroProcesses.py (2253) in system:
raise RuntimeError( _t_( 'System command exited with non null value : %s' ) % str( ret ) )




dans Pipeline Modèle de diffusion 3 Commande système terminée avec une valeur non nulle : 1

RuntimeError
neuroProcesses.py (2167) in _processExecution:
result = process.execution( self )
neuroProcesses.py (962) in execution:
return self._executionNode.run( context )
neuroProcesses.py (1650) in run:
return self._run( context )
neuroProcesses.py (1835) in _run:
result.append( node.run( context ) )
neuroProcesses.py (1650) in run:
return self._run( context )
neuroProcesses.py (1768) in _run:
return context.runProcess( self._process )
neuroProcesses.py (2014) in runProcess:
result = self._processExecution( _process, None )
neuroProcesses.py (2167) in _processExecution:
result = process.execution( self )
DiffusionEPICorrection.py (109) in execution:
apply( context.system, command )
neuroProcessesGUI.py (1300) in system:
ret = apply( ExecutionContextGUI.system, (self,) + args, kwargs )
neuroProcesses.py (2253) in system:
raise RuntimeError( _t_( 'System command exited with non null value : %s' ) % str( ret ) )






Do you have an idea of what is the problem and how I can resolve it ? Thenk you for any help,

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