2008 Summer Project Week:EddyCurrentCorrection - Revision history

Sylvain: /* Key Investigators */

2008-06-27T14:04:34Z

Key Investigators

Caff: /* Key Investigators */

2008-05-28T18:20:11Z

Key Investigators

Caff: /* Key Investigators */

2008-05-28T18:19:36Z

Key Investigators

Caff at 18:15, 28 May 2008

2008-05-28T18:15:31Z

Caff: New page: * ''Eddy Current Correction'' We implemented the diffusion weighted image (DWI) registration model from the paper of G.K.Rohde et al. Patient head motion and eddy currents distortion cause...

2008-05-28T18:10:47Z

New page: * ''Eddy Current Correction'' We implemented the diffusion weighted image (DWI) registration model from the paper of G.K.Rohde et al. Patient head motion and eddy currents distortion cause...

New page

* ''Eddy Current Correction'' We implemented the diffusion weighted image (DWI) registration model from the paper of G.K.Rohde et al. Patient head motion and eddy currents distortion cause artifacts in maps of diffusion parameters computer from DWI. This model corrects these two distortions at the same time including brightness correction.

{|
|[[Image:DTIregistration.png|thumb|512px|Coronal slice from a unregisted DTI (left). The same slice after applying the registration model (right).]]
|}

[1] G.K.Rohde, A.S.Barnett, P.J.Basser, S.Marenco, and C.Pierpaoli, et al., "Comprehensive Approach for Correction of Motion and Distortion in Diffusion-Weighted MRI," Magnetic Resonance in Medicine 51:103-114(2004)

@@ Line 35: / Line 35: @@
 <h1>Progress</h1>
-We have implemented a simple command line module. We plan to add the gradient rotation, sinc interpolation and to make an easy to use Slicer module.
+* We have implemented a simple command line module. We plan to add the gradient rotation, sinc interpolation and to make an easy to use Slicer module.
+* An ITK module has been written takes a nrrd dwi in and gives a nrrd dwi back.
 </div>

@@ Line 29: / Line 29: @@
 <h1>Approach, Plan</h1>
-We implemented the diffusion weighted image (DWI) registration model from the paper of G.K.Rohde et al. Patient head motion and eddy currents distortion cause artifacts in maps of diffusion parameters computer from DWI. This model corrects these two distortions at the same time including brightness correction.
+We implemented the diffusion weighted image (DWI) registration model from the paper of G.K.Rohde et al. Patient head motion and eddy currents distortion cause artifacts in maps of diffusion parameters computed from DWI. This model corrects these two distortions at the same time including brightness correction.
 </div>

@@ Line 22: / Line 22: @@
 <h1>Objective</h1>
-We are developing methods for analyzing diffusion tensor data along fiber tracts. The goal is to be able to make statistical group comparisons with fiber tracts as a common reference frame for comparison.
+The objective is to create software for correcting head motion and eddy current artifacts in DWIs.
 </div>
@@ Line 30: / Line 29: @@
 <h1>Approach, Plan</h1>
+We implemented the diffusion weighted image (DWI) registration model from the paper of G.K.Rohde et al. Patient head motion and eddy currents distortion cause artifacts in maps of diffusion parameters computer from DWI. This model corrects these two distortions at the same time including brightness correction.
 </div>
@@ Line 39: / Line 35: @@
 <h1>Progress</h1>
+We have implemented a simple command line module. We plan to add the gradient rotation, sinc interpolation and to make an easy to use Slicer module.
 </div>
@@ Line 47: / Line 42: @@
 </div>
 ===References===
 [1] G.K.Rohde, A.S.Barnett, P.J.Basser, S.Marenco, and C.Pierpaoli, et al., "Comprehensive Approach for Correction of Motion and Distortion in Diffusion-Weighted MRI," Magnetic Resonance in Medicine 51:103-114(2004)

@@ Line 1: / Line 1: @@
-* ''Eddy Current Correction'' We implemented the diffusion weighted image (DWI) registration model from the paper of G.K.Rohde et al. Patient head motion and eddy currents distortion cause artifacts in maps of diffusion parameters computer from DWI. This model corrects these two distortions at the same time including brightness correction.
+{|
 |[[Image:DTIregistration.png|thumb|512px|Coronal slice from a unregisted DTI (left). The same slice after applying the registration model (right).]]
 |}
 [1] G.K.Rohde, A.S.Barnett, P.J.Basser, S.Marenco, and C.Pierpaoli, et al., "Comprehensive Approach for Correction of Motion and Distortion in Diffusion-Weighted MRI," Magnetic Resonance in Medicine 51:103-114(2004)