![]() ![]() #Rc masks and templates softwareSoftware used to create average anatomical templates is available at Github Anatomical Structures SegmentationĪll necessary files are distributed with MINC1 and MINC2 versions of the 2009a and 2009c templates, use lobe_ script, it is also distributed as part of Minc Tool Kit Methodological details can be found in (Fonov, 2011). The T1-based transformation was then applied to the T2, PD and tissue classified volumes to generate average atlases for these data. 2006, Fonov, 2011), was applied to obtain the group averages. ![]() For each group, an iterative nonlinear co-registration algorithm (Grabner, Janke et al. Age-based subgroups of subjects were created, and all scans within each group were then automatically re-registered to the stereotaxic space using the appropriate template. Brain masking was performed using BET (Smith, 2002). All T1w MRI data was then transformed into the Talairach-like MNI stereotaxic space using minctracc (Collins, Neelin et al. Image pre-processing included non-uniform intensity correction (Sled, 1998) and intensity normalization to a range of 0–100. When looking at the images, remember that left is left and right is right! Holding ‘Shift’ with the left or middle button will enable dragging and zooming. You can also hold the middle/rocker mouse button down while moving up or down, to pan through the image plane. The MNI stereotaxic coordinates (X,Y,Z) are displayed in the first row below the volumes.įor viewing, one can use the left most mouse button to click on any image, and the other cross-sectional images will be updated with the appropriate position. To view the ICBM 2009 atlases online Click “View with JIV” links below. #Rc masks and templates licenseThe Java Internet Viewer ( JIV2) used here is available for download and personal use under the GNU general public license ( GPL). Viewing the multiple atlas volumes online requires Java browser support. Tools for using these atlased can be found in the Software section. Also, different versions of N3 algorithm produces slightly different tissue probability maps. Intensity inhomogeneity was performed using N3 version 1.11 Also included brain mask, eye mask and face mask.Sampling is different from 2009a template.Īll templates describe the same anatomy, but sampling is different. ICBM 2009c Nonlinear Asymmetric template - 1×1x1mm template which includes T1w,T2w,PDw modalities, and tissue probabilities maps.Sampling is different from 2009a template. Intensity inhomogeneity was performed using N3 version 1.11. Also included lobe atlas used for ANIMAL+INSECT segmentation, brain mask, eye mask and face mask. I CBM 2009c Nonlinear Symmetric - 1×1x1mm template which includes T1w,T2w,PDw modalities, and tissue probabilities maps.ICBM 2009b Nonlinear Asymmetric - 0.5×0.5×0.5mm template which includes only T1w,T2w and PDw modalities.ICBM 2009b Nonlinear Symmetric - 0.5×0.5×0.5mm template which includes only T1w,T2w and PDw modalities.Also included brain mask, eye mask and face mask. Intensity inhomogeneity was performed using N3 version 1.10.1. ICBM 2009a Nonlinear Asymmetric template - 1×1x1mm template which includes T1w,T2w,PDw modalities, and tissue probabilities maps.ICBM 2009a Nonlinear Symmetric - 1×1x1mm template which includes T1w,T2w,PDw modalities, also T2 relaxometry (T2 values calculated for each subject using single dual echo PD/T2 scan), and tissue probabilities maps.These volumes were created using data from ICBM project.Ħ different templates are available ( see below for downloads): We present an unbiased standard magnetic resonance imaging template brain volume for normal population. The procedure involved multiple iterations of a process where, at each iteration, individual native MRIs were non-linearly fitted to the average template from the previous iteration, beginning with the MNI152 linear template. A number of unbiased non-linear averages of the MNI152 database have been generated that combines the attractions of both high-spatial resolution and signal-to-noise while not being subject to the vagaries of any single brain (Fonov et al., 2011). ![]()
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