Projects:CorpusFiberClustering - Revision history

Melonakos at 18:46, 27 November 2007

2007-11-27T18:46:43Z

Melonakos at 12:55, 4 September 2007

2007-09-04T12:55:35Z

Melonakos at 12:55, 4 September 2007

2007-09-04T12:55:23Z

Melonakos at 12:55, 4 September 2007

2007-09-04T12:55:08Z

Melonakos at 18:06, 3 September 2007

2007-09-03T18:06:05Z

Melonakos at 16:25, 21 August 2007

2007-08-21T16:25:33Z

Melonakos: NA-MIC/Projects/Diffusion Image Analysis/Corpus Clustering moved to Projects:CorpusFiberClustering

2007-08-21T02:28:14Z

NA-MIC/Projects/Diffusion Image Analysis/Corpus Clustering moved to Projects:CorpusFiberClustering

Dougm at 13:28, 19 April 2007

2007-04-19T13:28:44Z

Dougm at 13:28, 19 April 2007

2007-04-19T13:28:24Z

Dougm at 13:28, 19 April 2007

2007-04-19T13:28:12Z

@@ Line 1: / Line 1: @@
   Back to [[NA-MIC_Collaborations|NA-MIC_Collaborations]], [[Algorithm:MIT|MIT Algorithms]]
-'''Objectives'''
+= Corpus Fiber Clustering =
-To measure differences in fractional anisotropy (FA), trace, mode, and volume of five subdivisions of the corpus callosum of schizophrenic patients vs. normal controls using an automatic clustering method and high resolution 3 Tesla data.
+Our objective is to measure differences in fractional anisotropy (FA), trace, mode, and volume of five subdivisions of the corpus callosum of schizophrenic patients vs. normal controls using an automatic clustering method and high resolution 3 Tesla data.
-'''Progress'''
+= Description =
 We are using a high resolution 3 Tesla scans, 1.7x1.7x1.7 mm, 51 diffusion directions, 8 baselines (data available to NAMIC investigators). So far we scanned 24 subjects, 12 chronic schizophrenics and 12 matched control subjects. Fiber tractography is performed on the whole brain, and then an automatic clustering method (O’Donnell et al., 2006), is applied. Midsagittal slice is then painted according to anatomical clusters, which results in 5, reliable clusters. Mean FA, mode, trace as well as volume of each clusters are obtained for each subject, and compared between groups.
@@ Line 17: / Line 15: @@
 [[image:clustering_corpus2.jpg|300px]]
-''References''
+= Publications =
-* O’Donnell LJ, Kubicki M, Shenton ME, Dreusicke MH, Grimson WE, Westin CF (2006): A method for clustering white matter fiber tracts. AJNR Am J Neuroradiol 27:1032-6.
+[http://www.na-mic.org/Special:Publications?text=Projects%3ACorpusFiberClustering&submit=Search&words=all&title=checked&keywords=checked&authors=checked&abstract=checked&sponsors=checked&searchbytag=checked| NA-MIC Publication Database]
-'''Key Investigators'''
+= Key Investigators =
 * Harvard PNL: Marek Kubicki, Kate Smith, Martha Shenton
 * MIT: Lauren O'Donnell, Carl-Fredrik Westin

@@ Line 19: / Line 19: @@
 ''References''
-O’Donnell LJ, Kubicki M, Shenton ME, Dreusicke MH, Grimson WE, Westin CF (2006): A method for clustering white matter fiber tracts. AJNR Am J Neuroradiol 27:1032-6.
+* O’Donnell LJ, Kubicki M, Shenton ME, Dreusicke MH, Grimson WE, Westin CF (2006): A method for clustering white matter fiber tracts. AJNR Am J Neuroradiol 27:1032-6.
 '''Key Investigators'''

← Older revision		Revision as of 12:55, 4 September 2007
Line 18:		Line 18:

	''References''		''References''
		+
	O’Donnell LJ, Kubicki M, Shenton ME, Dreusicke MH, Grimson WE, Westin CF (2006): A method for clustering white matter fiber tracts. AJNR Am J Neuroradiol 27:1032-6.		O’Donnell LJ, Kubicki M, Shenton ME, Dreusicke MH, Grimson WE, Westin CF (2006): A method for clustering white matter fiber tracts. AJNR Am J Neuroradiol 27:1032-6.

@@ Line 1: / Line 1: @@
 = Corpus Fiber Clustering =
-  Back to [[NA-MIC_Collaborations|NA-MIC_Collaborations]]
+  Back to [[NA-MIC_Collaborations|NA-MIC_Collaborations]], [[Algorithm:MIT|MIT Algorithms]]
 '''Objectives'''
 To measure differences in fractional anisotropy (FA), trace, mode, and volume of five subdivisions of the corpus callosum of schizophrenic patients vs. normal controls using an automatic clustering method and high resolution 3 Tesla data.
 '''Progress'''
@@ Line 15: / Line 14: @@
 [[image:clustering_brain.jpg|left|300px]] [[image:clustering_corpus.jpg|300px]]
 [[image:clustering_corpus2.jpg|300px]]
@@ Line 24: / Line 22: @@
 '''Key Investigators'''
-Harvard PNL: Marek Kubicki, Kate Smith, Martha Shenton
+* Harvard PNL: Marek Kubicki, Kate Smith, Martha Shenton
-MIT: Lauren O'Donnell, Carl-Fredrik Westin
+* MIT: Lauren O'Donnell, Carl-Fredrik Westin

@@ Line 1: / Line 1: @@
   Back to [[NA-MIC_Collaborations|NA-MIC_Collaborations]]
-====Objectives:====
+'''Objectives'''
 To measure differences in fractional anisotropy (FA), trace, mode, and volume of five subdivisions of the corpus callosum of schizophrenic patients vs. normal controls using an automatic clustering method and high resolution 3 Tesla data.
-====Progress:====
+'''Progress'''
 We are using a high resolution 3 Tesla scans, 1.7x1.7x1.7 mm, 51 diffusion directions, 8 baselines (data available to NAMIC investigators). So far we scanned 24 subjects, 12 chronic schizophrenics and 12 matched control subjects. Fiber tractography is performed on the whole brain, and then an automatic clustering method (O’Donnell et al., 2006), is applied. Midsagittal slice is then painted according to anatomical clusters, which results in 5, reliable clusters. Mean FA, mode, trace as well as volume of each clusters are obtained for each subject, and compared between groups.
@@ Line 18: / Line 19: @@
 [[image:clustering_corpus2.jpg|300px]]
-====References:====
+''References''
 O’Donnell LJ, Kubicki M, Shenton ME, Dreusicke MH, Grimson WE, Westin CF (2006): A method for clustering white matter fiber tracts. AJNR Am J Neuroradiol 27:1032-6.

← Older revision		Revision as of 16:25, 21 August 2007
Line 1:		Line 1:
		+	Back to [[NA-MIC_Collaborations\|NA-MIC_Collaborations]]
		+
	====Objectives:====		====Objectives:====
	To measure differences in fractional anisotropy (FA), trace, mode, and volume of five subdivisions of the corpus callosum of schizophrenic patients vs. normal controls using an automatic clustering method and high resolution 3 Tesla data.		To measure differences in fractional anisotropy (FA), trace, mode, and volume of five subdivisions of the corpus callosum of schizophrenic patients vs. normal controls using an automatic clustering method and high resolution 3 Tesla data.

← Older revision	Revision as of 02:28, 21 August 2007
(No difference)

← Older revision		Revision as of 13:28, 19 April 2007
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	[[image:clustering_brain.jpg\|left\|300px]] [[image:clustering_corpus.jpg\|300px]]		[[image:clustering_brain.jpg\|left\|300px]] [[image:clustering_corpus.jpg\|300px]]
		+

	[[image:clustering_corpus2.jpg\|350px]]		[[image:clustering_corpus2.jpg\|350px]]