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![Page 1: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/1.jpg)
NA-MIC - Contrasting Tractography Method
Conference
Utah/UNC results
Sylvain GouttardGuido Gerig
Casey Goodlett
Santa Fe,October 1st & 2nd 2007
![Page 2: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/2.jpg)
Overview
Processing description: DWI to tensors
ROIs
Tracking
Bundling / cleaning
Results: Fiber tracked
FA/MD analysis
Conclusion
![Page 3: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/3.jpg)
Original Data
High resolution DWI with 59 images (8 B0's and 51 directions)
size 256*256*81 resolution 0.9,0.9,1.7
Tensor field
Tensor estimation using dtiestim:- Linear least square- B0 threshold = 500
![Page 4: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/4.jpg)
ROIs
5 ROIs: Arcuate
Cingulum
Fornix
Internal Capsule
Uncinate Original ROIs not appropriate for our tractography tool
(need volumetric ROIs) Had to specify target and source labels Split right and left
![Page 5: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/5.jpg)
ROIs - Arcuate
No editing
![Page 6: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/6.jpg)
ROIs - Cingulum
Original ROIs Edited ROIs
![Page 7: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/7.jpg)
ROIs – Fornix
Original ROIs Edited ROIs
![Page 8: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/8.jpg)
ROIs – Internal Capsule
Original ROIs
Edited ROIs
![Page 9: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/9.jpg)
ROIs - UncinateOriginal ROIs Edited ROIs
![Page 10: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/10.jpg)
Fiber tracking
Fiber tracking done with the FiberTracking
tool, based on Susumu Mori's tool.
Input: tensor field & ROI
Output: Streamlines
Parameters:
min FA threshold 0.15
angle of max dev 0.35
![Page 11: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/11.jpg)
Post processing – FiberViewer Clustering and cleaning
bundle cleaning via clustering: Metrics for clustering:
fiber length
center of mass
Hausdorff
Fiber cutting
![Page 12: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/12.jpg)
Post processing - FiberViewerDiffusion statistics
Diffusion statistics for each bundle: Definition of coordinate origin FA
MD
λ 1,2,3diffusion val.
geodesic distance
0 +L-L
![Page 13: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/13.jpg)
Specifications
Computational resources:
2 Intel Xeon processors 2GHz
2G of RAM
linux
Average execution time per case:
DWI -> tensors: <1min
Tractography: 2 < t < 10 min
Cleaning: 2 < t < 5 min (manual interaction)
![Page 14: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/14.jpg)
Results – High resolution cases 10 cases (dim:256*256*81 res:0.9,0.9,1.7) 5 ROIs (Arcuate, Cingulate, Fornix, Int. Capsule, Uncinate)
Arcuate
0
20
40
60
80
100
120
140
# of Fiber - Arcuate
ROI
# fi
be
rs
Cingulate
0
50
100
150
200
250
300
350
# of Fiber - Cingulum
ROI
# fi
be
rs
Fornix
0
10
20
30
40
50
60
70
80
90
# of Fiber - Fornix
ROI
# fi
be
rsInternalCapsule
0
200
400
600
800
1000
1200
1400
1600
1800
2000
# of Fiber - Internal Capsule
ROI
# fi
be
rs
Uncinate
0
100
200
300
400
500
600
700
# of Fiber - Uncinate
ROI
# fi
be
rs
D00917D00920D00924D00925D00928D00935D00936D00938D00939
D00940
We use the number of streamlines for comparison but know that it is limited
![Page 15: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/15.jpg)
Fiber tracking example
D00925 ; Internal capsule 19 fibers
D00935 ; Internal capsule 740 fibers
D00935 cleaned ; Internal capsule ; 545 fibers
![Page 16: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/16.jpg)
Fiber tracking example
D00920 ; Arcuate ; 29 fibers D00928 ; Arcuate ; 99 fibers
![Page 17: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/17.jpg)
Fiber tracking example
D00925
Cingulum
2 fibers
D00917 ; Cingulum ; 175 fibers D00917 cleaned ; Cingulum ; 170 fibers
![Page 18: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/18.jpg)
Fiber tracking example
D00925 ; Fornix ; 3 fibers D00928 ; Fornix ; 77 fibers
![Page 19: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/19.jpg)
Fiber tracking example
D00936
Uncinate
1 fibers
D00935 ; Uncinate ; 140 fibers D00935 cleaned ; Uncinate ; 100 fibers
![Page 20: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/20.jpg)
Resulting data structure
Origin plane manually placedArc-length parameterization Diffusion values along fibers (FA, MD, λ's,GA) in excel format
![Page 21: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/21.jpg)
FA-MD plots - Cingulum
FAMD
0.0
0.8615
0
![Page 22: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/22.jpg)
FA-MD plots - Fornix
FAMD
0.0
0.7540
0
Analysis:
- 1 branch at a time?
- 2 at the same time?
![Page 23: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/23.jpg)
FA-MD plots – Internal capsule
FAMD
0.0
0.7515
0
![Page 24: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/24.jpg)
FA-MD plots - Uncinate
FAMD
0.0
0.8015
0
![Page 25: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/25.jpg)
Evaluation of preprocessing
2 cases with: Orignal data (dim:256*256*81 res:0.9,0.9,1.7) Eddy current correction (dim:256*256*81 res:0.9,0.9,1.7) Eddy current correction and sub sampled (dim:144*144*81
res:1.6,1.6,1.7)
Original Dataset Corrected Dataset Corrected-subsampled dataset
ROIs D00925 D00935 D00925 D00935 D00925 D00935Arcuate L 20 11 0 0 13 4
Arcuate R 16 10 0 0 4 3
Cingulum L 5 144 0 0 38 166
Cingulum R 2 165 0 0 105 92
Fornix 3 8 0 4 3 46
InternalCapsule L 19 740 22 842 54 691
InternalCapsule R 143 679 305 963 210 740
Uncinate L 435 140 564 190 25 76
Uncinate R 190 216 283 275 53 52
# of fibers
![Page 26: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/26.jpg)
Evaluation of preprocessing
Tensors filtered using MedINRIA tensor smoothing
=> Inconsistent results
Internal Capsule: - Not filtered => 59 fib - Filtered => 179 fib
Cingulum: - Not filtered => ~140 fib - Filtered => 0 fib
Examples:
![Page 27: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/27.jpg)
Summary / Problems
ROIs: need redrawing to do tractography with our
tools
Noise level seems high w.r.t. to streamline tracking
High variability across cases =>
subject specific?
scanning artefacts?
motion? distortion?
...
ROIs D00928 D00936Arcuate 129 12
Cingulum 209 58Fornix 77 11
InternalCapsule 1855 376Uncinate 382 110
![Page 28: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/28.jpg)
Summary / Problems (2)
Coordinate system inconsistency: ROIs are individually placed FiberViewer: origin plane manually set for
statistics
Metric for comparison: number of fibers: does not describe quality
![Page 29: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/29.jpg)
![Page 30: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/30.jpg)
High resolution casesPercentage of fibers (with Left and Right)
0
5
10
15
20
25
30
35
40
45
50
Percentage of fibers over all the fibers per ROI
D00917D00920D00924D00925D00928D00935D00936D00938D00939D00949
![Page 31: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/31.jpg)
High resolution casesFiber tracked numbers
ROIs D00917 D00920 D00924 D00925 D00928 D00935 D00936 D00938 D00939 D00940Arcuate L 6 29 18 20 99 11 2 0 16 16
Arcuate R 24 11 74 16 30 10 10 0 27 7
Cingulum L 175 35 108 5 32 144 21 7 10 8
Cingulum R 55 2 96 2 177 165 37 2 7 77
Fornix 29 7 9 3 77 8 11 5 15 42
InternalCapsule L 600 64 385 19 663 740 116 199 727 334
InternalCapsule R 678 250 1094 143 1192 679 260 1021 381 459
Uncinate L 315 172 109 435 102 140 1 332 171 190
Uncinate R 298 303 112 190 280 216 109 265 302 278
Percentage
ROIs D00917 D00920 D00924 D00925 D00928 D00935 D00936 D00938 D00939 D00940Arcuate L 2.76 13.36 8.29 9.22 45.62 5.07 0.92 0 7.37 7.37
Arcuate R 11.48 5.26 35.41 7.66 14.35 4.78 4.78 0 12.92 3.35
Cingulum L 32.11 6.42 19.82 0.92 5.87 26.42 3.85 1.28 1.83 1.47
Cingulum R 8.87 0.32 15.48 0.32 28.55 26.61 5.97 0.32 1.13 12.42
Fornix 14.08 3.4 4.37 1.46 37.38 3.88 5.34 2.43 7.28 20.39
InternalCapsule L 15.6 1.66 10.01 0.49 17.23 19.24 3.02 5.17 18.9 8.68
InternalCapsule R 11.01 4.06 17.77 2.32 19.36 11.03 4.22 16.58 6.19 7.45
Uncinate L 16.01 8.74 5.54 22.11 5.19 7.12 0.05 16.88 8.69 9.66
Uncinate R 12.66 12.88 4.76 8.07 11.9 9.18 4.63 11.26 12.83 11.81
ROIs D00917 D00920 D00924 D00925 D00928 D00935 D00936 D00938 D00939 D00940Arcuate 30 40 92 36 129 21 12 0 43 23
Cingulum 230 37 204 7 209 309 58 9 17 85
Fornix 29 7 9 3 77 8 11 5 15 42
InternalCapsule 1278 314 1479 162 1855 1419 376 1220 1108 793
Uncinate 613 475 221 625 382 356 110 597 473 468
ROIs D00917 D00920 D00924 D00925 D00928 D00935 D00936 D00938 D00939 D00940Arcuate 7.04% 9.39% 21.60% 8.45% 30.28% 4.93% 2.82% 0.00% 10.09% 5.40%
Cingulum 19.74% 3.18% 17.51% 0.60% 17.94% 26.52% 4.98% 0.77% 1.46% 7.30%
Fornix 14.08% 3.40% 4.37% 1.46% 37.38% 3.88% 5.34% 2.43% 7.28% 20.39%
InternalCapsule 12.77% 3.14% 14.78% 1.62% 18.54% 14.18% 3.76% 12.20% 11.08% 7.93%
Uncinate 14.19% 11.00% 5.12% 14.47% 8.84% 8.24% 2.55% 13.82% 10.95% 10.83%
![Page 32: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/32.jpg)
High resolution casesFiber cleaned numbers
ROIs D00917 D00920 D00924 D00925 D00928 D00935 D00936 D00938 D00939 D00940Arcuate L 6 29 18 20 99 11 2 0 16 16
Arcuate R 24 11 74 16 30 10 10 0 27 7
Cingulum L 176 35 106 0 32 144 21 0 0 0
Cingulum R 50 0 79 0 177 165 37 0 0 77
Fornix 29 0 9 0 77 0 0 0 15 0
InternalCapsule L 346 61 292 19 362 549 101 108 463 158
InternalCapsule R 394 169 780 104 648 428 167 625 357 368
Uncinate L 133 89 75 269 63 114 0 93 92 75
Uncinate R 202 108 46 79 159 72 5 105 180 149
ROIs D00917 D00920 D00924 D00925 D00928 D00935 D00936 D00938 D00939 D00940Arcuate L 2.76% 13.36% 8.29% 9.22% 45.62% 5.07% 0.92% 0.00% 7.37% 7.37%
Arcuate R 11.48% 5.26% 35.41% 7.66% 14.35% 4.78% 4.78% 0.00% 12.92% 3.35%
Cingulum L 34.24% 6.81% 20.62% 0.00% 6.23% 28.02% 4.09% 0.00% 0.00% 0.00%
Cingulum R 8.55% 0.00% 13.50% 0.00% 30.26% 28.21% 6.32% 0.00% 0.00% 13.16%
Fornix 22.31% 0.00% 6.92% 0.00% 59.23% 0.00% 0.00% 0.00% 11.54% 0.00%
InternalCapsule L 14.07% 2.48% 11.87% 0.77% 14.72% 22.33% 4.11% 4.39% 18.83% 6.43%
InternalCapsule R 9.75% 4.18% 19.31% 2.57% 16.04% 10.59% 4.13% 15.47% 8.84% 9.11%
Uncinate L 13.26% 8.87% 7.48% 26.82% 6.28% 11.37% 0.00% 9.27% 9.17% 7.48%
Uncinate R 18.28% 9.77% 4.16% 7.15% 14.39% 6.52% 0.45% 9.50% 16.29% 13.48%
Left and Right together
ROIs D00917 D00920 D00924 D00925 D00928 D00935 D00936 D00938 D00939 D00940Arcuate 30 40 92 36 129 21 12 0 43 23
Cingulum 226 35 185 0 209 309 58 0 0 77
Fornix 29 0 9 0 77 0 0 0 15 0
InternalCapsule 740 230 1072 123 1010 977 268 733 820 526
Uncinate 335 197 121 348 222 186 5 198 272 224
ROIs D00917 D00920 D00924 D00925 D00928 D00935 D00936 D00938 D00939 D00940Arcuate 7.04% 9.39% 21.60% 8.45% 30.28% 4.93% 2.82% 0.00% 10.09% 5.40%
Cingulum 20.56% 3.18% 16.83% 0.00% 19.02% 28.12% 5.28% 0.00% 0.00% 7.01%
Fornix 22.31% 0.00% 6.92% 0.00% 59.23% 0.00% 0.00% 0.00% 11.54% 0.00%
InternalCapsule 11.39% 3.54% 16.49% 1.89% 15.54% 15.03% 4.12% 11.28% 12.62% 8.09%
Uncinate 15.89% 9.35% 5.74% 16.51% 10.53% 8.82% 0.24% 9.39% 12.90% 10.63%
![Page 33: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/33.jpg)
ResultsHigh resolution cases after cleaning
Arcuate
0
20
40
60
80
100
120
140
# of Fiber - Arcuate
ROI
# fi
be
rs
Cingulate
0
50
100
150
200
250
300
350
# of Fiber - Cingulum
ROI
# fi
be
rs
Fornix
0
10
20
30
40
50
60
70
80
90
# of Fiber - Fornix
ROI
# fi
be
rsInternalCapsule
0
200
400
600
800
1000
1200
# of Fiber - Internal Capsule
ROI
# fi
be
rs
Uncinate
0
50
100
150
200
250
300
350
400
# of Fiber - Uncinate
ROI
# fi
be
rs
D00917D00920D00924D00925D00928D00935D00936D00938D00939
D00940
![Page 34: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/34.jpg)
Results – High resolution cases 10 cases (dim:256*256*81 res:0.9,0.9,1.7) 5 ROIs (Arcuate, Cingulate, Fornix, Int. Capsule, Uncinate)
Arcuate Cingulum Fornix InternalCapsule Uncinate
0
200
400
600
800
1000
1200
1400
1600
1800
2000
Number of fiber tracked
D00917
D00920
D00924
D00925
D00928
D00935
D00936
D00938
D00939
D00949
Case ID
# of
fib
ers
Arcuate Cingulum Fornix InternalCapsule Uncinate0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
Percentage of fiber tracked for each ROI
D00917
D00920
D00924
D00925
D00928
D00935
D00936
D00938
D00939
D00949
ROI
% o
f fib o
f th
e s
am
e R
OI
![Page 35: NA-MIC - Contrasting Tractography Method Conference Utah/UNC results Sylvain Gouttard Guido Gerig Casey Goodlett Santa Fe, October 1 st & 2 nd 2007.](https://reader035.fdocuments.net/reader035/viewer/2022062500/5697bfa61a28abf838c9879c/html5/thumbnails/35.jpg)
ResultsHigh resolution cases after cleaning
Arcuate Cingulum Fornix InternalCapsule Uncinate
0
200
400
600
800
1000
1200
Number of fibers after cleaning
D00917
D00920
D00924
D00925
D00928
D00935
D00936
D00938
D00939
D00949
ROI
# o
f fibers
Arcuate Cingulum Fornix InternalCapsule Uncinate
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Percentage of each fiber bundle cleaned
D00917
D00920
D00924
D00925
D00928
D00935
D00936
D00938
D00939
D00949
ROI
% o
f fi
b o
f th
e s
am
e R
OI