Neuroimage Analysis Center

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"understanding the human brain through imaging"

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Figure 2: A. Corpus callosum overlaid on the midsagittal section. B. Parcellation of the corpus callosum according to the Witelson scheme. Each segment is labeled with a different color. The segments from left to right correspond to the anterior third, anterior midbody, posterior midbody, isthmus, and splenium.
Figure 2: A. Corpus callosum overlaid on the midsagittal section. B. Parcellation of the corpus callosum according to the Witelson scheme. Each segment is labeled with a different color. The segments from left to right correspond to the anterior third, anterior midbody, posterior midbody, isthmus, and splenium.
Figure 2: a,b. In the checkerboard display between the preoperative image (before deformation) and intraoperative image, a black line indicates a contour of the total gland, whereas a white line indicates a contour of the central gland. a: The contours showed discrepancy at white arrows. b: In a checkerboard display between deformed preoperative and intraoperative images, the contours match closely after registration has been performed. A slight discrepancy remained at the posterior part of the prostate (black arrow).
Figure 2: a,b. In the checkerboard display between the preoperative image (before deformation) and intraoperative image, a black line indicates a contour of the total gland, whereas a white line indicates a contour of the central gland. a: The contours showed discrepancy at white arrows. b: In a checkerboard display between deformed preoperative and intraoperative images, the contours match closely after registration has been performed. A slight discrepancy remained at the posterior part of the prostate (black arrow).
Figure 1: Generative Model that assumes two templates.
Figure 1: Generative Model that assumes two templates.
Figure 2: Three cross-sections of 3D segmentations of Hippocampus, Amygdala and Superior Temporal Gyrus in the left and right hemispheres. Automatic segmentation is shown in red. Manual segmentation is shown in blue. Fourth column: Coronal views of the resulting atlases for each pair of structures.
Figure 2: Three cross-sections of 3D segmentations of Hippocampus, Amygdala and Superior Temporal Gyrus in the left and right hemispheres. Automatic segmentation is shown in red. Manual segmentation is shown in blue. Fourth column: Coronal views of the resulting atlases for each pair of structures.
Figure 3: Streamline DT tractography colored by dispersion index (a,c) and curving index (b,d). Red indicates high index values. The T2-weighted image is shown in the background for reference. Note the consistent behaviour of the pre-computed dispersion and curving indices with respect to the tractography results. The regions in the green boxes are discussed further in the text. Some of the strong dispersion regions in the internal capsule (c) are due to fibre fanning orthogonal to the image plane.
Figure 3: Streamline DT tractography colored by dispersion index (a,c) and curving index (b,d). Red indicates high index values. The T2-weighted image is shown in the background for reference. Note the consistent behaviour of the pre-computed dispersion and curving indices with respect to the tractography results. The regions in the green boxes are discussed further in the text. Some of the strong dispersion regions in the internal capsule (c) are due to fibre fanning orthogonal to the image plane.
Figure: Tractography seeded midline of the corpus callosum (yellow) and viewed from above. Lateral fibers exiting a ±22mm corridor are highlighted in blue.
Figure: Tractography seeded midline of the corpus callosum (yellow) and viewed from above. Lateral fibers exiting a ±22mm corridor are highlighted in blue.
Figure 4: Tracing the motor tract when seeded from the posterior limb of the internal capsule. To generate a comparable visualization to probabilistic tractography for all methods, a coronal maximum intensity projection (MIP) map is shown for all tractography and fMRI data, overlaid on a representative coronal anatomical image. (a) The FMRI activation areas. (b) Single-tensor tractography (voxels are color coded based on the number of trajectories passing through them, followed by the MIP). (c) Probabilistic tractography. (d) Two-tensor XST. In (b–d) the colored regions show voxels containing at least one fiber trajectory.
Figure 4: Tracing the motor tract when seeded from the posterior limb of the internal capsule. To generate a comparable visualization to probabilistic tractography for all methods, a coronal maximum intensity projection (MIP) map is shown for all tractography and fMRI data, overlaid on a representative coronal anatomical image. (a) The FMRI activation areas. (b) Single-tensor tractography (voxels are color coded based on the number of trajectories passing through them, followed by the MIP). (c) Probabilistic tractography. (d) Two-tensor XST. In (b–d) the colored regions show voxels containing at least one fiber trajectory.
Figure 6: Cluster fibers across multiple subjects
Figure 6: Cluster fibers across multiple subjects
Figure 3: Spatial maps of the parcels assigned to the scene selective cluster 7 in Fig. 2(d) in two different subjects.
Figure 3: Spatial maps of the parcels assigned to the scene selective cluster 7 in Fig. 2(d) in two different subjects.
Figure 3: Human median-nerve experiments. In the first column, approximate locations for cSI (solid), cSII (dashed), and iSII (dashed) are highlighted on the fMRI activation maps. Columns two to five show the current estimates obtained via MNE, fMNE, fARD, and FIRE at 75 ms after stimulus onset. Hot/cold colors indicate outward/inward current flow.
Figure 3: Human median-nerve experiments. In the first column, approximate locations for cSI (solid), cSII (dashed), and iSII (dashed) are highlighted on the fMRI activation maps. Columns two to five show the current estimates obtained via MNE, fMNE, fARD, and FIRE at 75 ms after stimulus onset. Hot/cold colors indicate outward/inward current flow.
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