2011 Winter Project Week:DicomToNrrdRefactoring - Revision history

Mscully at 17:19, 12 January 2011

2011-01-12T17:19:34Z

Taox: /* Key Investigators */

2011-01-11T18:45:06Z

Key Investigators

Taox at 17:25, 11 January 2011

2011-01-11T17:25:54Z

Mscully: /* Key Investigators */

2011-01-11T16:05:33Z

Key Investigators

Mscully: /* Key Investigators */

2010-12-29T15:24:52Z

Key Investigators

Mscully: Created page with 'NOTOC Image:PW-SLC2011.png|Projects List ==Key Investigators== * UIowa: Hans Johnson, Mark Scully, Joy Matsui * GE…'

2010-12-10T17:01:11Z

Created page with '__NOTOC__ <gallery> Image:PW-SLC2011.png|Projects List </gallery> ==Key Investigators== * UIowa: Hans Johnson, Mark Scully, Joy Matsui * GE…'

New page

__NOTOC__
<gallery>
Image:PW-SLC2011.png|[[2011_Winter_Project_Week#Projects|Projects List]]
</gallery>

==Key Investigators==
* UIowa: Hans Johnson, Mark Scully, Joy Matsui
* GE: Xiaodong Tao

<div style="margin: 20px;">
<div style="width: 27%; float: left; padding-right: 3%;">

<h3>Objective</h3>
Gather requirements in support of refactoring the DWI DicomToNrrdConverter.

</div>

<div style="width: 27%; float: left; padding-right: 3%;">

<h3>Approach, Plan</h3>
Meet with anyone interested and establish a list of known requirements for DicomToNrrdConverter.
Collectively brainstorm approaches to the refactoring, such as the use of GDCM 1.2 vs. GDCM 2.x vs. DCMTK.
References:
*[[NAMIC_Wiki:DTI:Nrrd_format | DTI:Nrrd_Format]]
</div>

<div style="width: 40%; float: left;">

<h3>Progress</h3>
Current DWI variations list:
* slice ordering (S->I vs I->S),
* transfer syntax endianness (big, little, and unknown),
* slice arrangement (mosaic vs split, slice interleaving vs volume interleaving),
* #B-Values (single vs multiple),
* gradient vector reference frame (LPS vs patient oblique),
* slice orientation (orthogonal vs oblique),
* multiple B0s (all at beginning, all at end, interspersed)
* vendor (different ways of storing diffusion information),
* software versions (changes in how diffusion information is stored and interpreted).

</div>
</div>

← Older revision		Revision as of 17:19, 12 January 2011
Line 67:		Line 67:
	*Essential information (all in public tags): space location, resolution, image orientation (IJK->xyz), and how the ordering of dicom files corresponds to the organization of the slices. This information is essential for putting measurements in the correct physical locations.		*Essential information (all in public tags): space location, resolution, image orientation (IJK->xyz), and how the ordering of dicom files corresponds to the organization of the slices. This information is essential for putting measurements in the correct physical locations.
	*Non-essential information (some are in private tags, vendor dependent): diffusion related information -- b-values, gradient weighting direction, B-matrix.		*Non-essential information (some are in private tags, vendor dependent): diffusion related information -- b-values, gradient weighting direction, B-matrix.
		+	*Discussed general dicom approach with Steve, Jim, Hans, Xiadong, and Mark.
		+	*Decided that ITK should populate a sqlite database with all the dicom tags and then pass that database onto later filters which will handle modality specific information.
		+	*Since that functionality doesn't exist yet, the new version of DicomToNrrdConverter will be built using GDCM 2.x.
		+	*GDCM 2.x handles issues such as slice ordering, slice arrangement, slice orientation, etc.
		+	*The Diffusion parsing filter will take the GDCM 2.x tag database then correct for gradient vector reference frame, B0 locations, and perform all vendor specific conversions.

@@ Line 13: / Line 13: @@
 <h3>Objective</h3>
 Gather requirements in support of refactoring the DWI DicomToNrrdConverter.
 </div>
@@ Line 29: / Line 24: @@
 *[[NAMIC_Wiki:DTI:Nrrd_format | DTI:Nrrd_Format]]
 *[[NAMIC_Wiki:DTI:DICOM_for_DWI_and_DTI|DICOM_for_DWI_and_DTI]]
 </div>
@@ Line 59: / Line 46: @@
 <!--<div style="width: 97%; float: left;">
-==References==
+<h2>References</h2>
 </div>
 -->

@@ Line 34: / Line 34: @@
 *  slice arrangement (mosaic vs split, slice interleaving vs volume interleaving),
 *  #B-Values (single vs multiple),
-*  gradient vector reference frame (LPS vs patient oblique),
+*  gradient vector reference frame (Scanner vs patient),
 *  slice orientation (orthogonal vs oblique),
 *  multiple B0s (all at beginning, all at end, interspersed)

@@ Line 23: / Line 23: @@
 References:
 *[[NAMIC_Wiki:DTI:Nrrd_format | DTI:Nrrd_Format]]
 </div>

2011 Winter Project Week:DicomToNrrdRefactoring - Revision history

Mscully at 17:19, 12 January 2011

Taox: /* Key Investigators */

Taox at 17:25, 11 January 2011

Mscully: /* Key Investigators */

Mscully: /* Key Investigators */

Mscully: Created page with '__NOTOC__ Image:PW-SLC2011.png|Projects List ==Key Investigators== * UIowa: Hans Johnson, Mark Scully, Joy Matsui * GE…'

Mscully: Created page with 'NOTOC Image:PW-SLC2011.png|Projects List ==Key Investigators== * UIowa: Hans Johnson, Mark Scully, Joy Matsui * GE…'