Projects/Diffusion/2007 Project Week Contrasting Tractography Measures/Acquisition Parameters - Revision history

Spujol at 20:46, 24 January 2008

2008-01-24T20:46:51Z

Spujol at 17:29, 24 January 2008

2008-01-24T17:29:18Z

RandyGollub at 02:37, 12 July 2007

2007-07-12T02:37:00Z

RandyGollub at 01:49, 12 July 2007

2007-07-12T01:49:38Z

RandyGollub at 01:49, 12 July 2007

2007-07-12T01:49:14Z

Kubicki at 21:33, 23 June 2007

2007-06-23T21:33:58Z

New page

DTI data:
* 3 Tesla GE system was used to acquire data (General Electric Medical Systems, Milwaukee, WI)
* We used Echo Planar Imaging (EPI) DTI Tensor acquisiton with double echo option enabled, in order to reduce eddy-current related distortions.
* 8 Channel Head Coil was used to reduce the impact of EPI spatial distortions, and ASSET (Array Spatial Sensitivity Encoding Techniques, GE) with a SENSE-factor (speed-up) of 2 was used.
* Acquisition parameters were as follows: 51 directions with b=700, 8 baseline scans with b=0, TR 17000 ms, TE 78 ms, FOV 24 cm, 144 x 144 encoding steps, 1.7 mm slice thickness. The total scan time for the sequence was 17 minutes.

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 * 1.5 T Siemens using 8-Channel Coil
 * 60 gradient directions, 10 baselines, b = 700.
-* TR = 9800 ms, TE = 86 ms, FOV = 256 mm, 2.0 mm voxel size, 2 mm slice thickness, 128 x 128 x 64 matrix size.
+* TR = 8900 ms, TE = 80 ms, FOV = 256 mm, 2.0 mm voxel size, 2 mm slice thickness, 128 x 128 x 64 matrix size.
-* Total scan time: 5 minutes.
+* Scan time: 10:32 min
 Return to [[Projects/Diffusion/2007_Project_Week_Contrasting_Tractography_Measures | Contrasting Tractography Project Page]]

← Older revision		Revision as of 02:37, 12 July 2007
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−	Return to [[Projects/Diffusion/2007_Project_Week_Contrasting_Tractography_Measures \| ~~ContrastingTractography~~ Project Page]]	+	Return to [[Projects/Diffusion/2007_Project_Week_Contrasting_Tractography_Measures \| Contrasting Tractography Project Page]]

← Older revision		Revision as of 01:49, 12 July 2007
Line 6:		Line 6:


−	Return to [[Projects/Diffusion/2007_Project_Week_Contrasting_Tractography_Measures \| ContrastingTractography Project]]	+	Return to [[Projects/Diffusion/2007_Project_Week_Contrasting_Tractography_Measures \| ContrastingTractography Project Page]]

← Older revision		Revision as of 01:49, 12 July 2007
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	* 8 Channel Head Coil was used to reduce the impact of EPI spatial distortions, and ASSET (Array Spatial Sensitivity Encoding Techniques, GE) with a SENSE-factor (speed-up) of 2 was used.		* 8 Channel Head Coil was used to reduce the impact of EPI spatial distortions, and ASSET (Array Spatial Sensitivity Encoding Techniques, GE) with a SENSE-factor (speed-up) of 2 was used.
	* Acquisition parameters were as follows: 51 directions with b=700, 8 baseline scans with b=0, TR 17000 ms, TE 78 ms, FOV 24 cm, 144 x 144 encoding steps, 1.7 mm slice thickness. The total scan time for the sequence was 17 minutes.		* Acquisition parameters were as follows: 51 directions with b=700, 8 baseline scans with b=0, TR 17000 ms, TE 78 ms, FOV 24 cm, 144 x 144 encoding steps, 1.7 mm slice thickness. The total scan time for the sequence was 17 minutes.
		+
		+
		+	Return to [[Projects/Diffusion/2007_Project_Week_Contrasting_Tractography_Measures \| ContrastingTractography Project]]

@@ Line 1: / Line 1: @@
 DTI data:
 * 3 Tesla GE system was used to acquire data (General Electric Medical Systems, Milwaukee, WI)
 * We used Echo Planar Imaging (EPI) DTI Tensor acquisiton with double echo option enabled, in order to reduce eddy-current related distortions.
 * 8 Channel Head Coil was used to reduce the impact of EPI spatial distortions, and ASSET (Array Spatial Sensitivity Encoding Techniques, GE) with a SENSE-factor (speed-up) of 2 was used.
 * Acquisition parameters were as follows: 51 directions with b=700, 8 baseline scans with b=0, TR 17000 ms, TE 78 ms, FOV 24 cm, 144 x 144 encoding steps, 1.7 mm slice thickness. The total scan time for the sequence was 17 minutes.
 Return to [[Projects/Diffusion/2007_Project_Week_Contrasting_Tractography_Measures | Contrasting Tractography Project Page]]