We present a new standard atlas of the human brain based on magnetic resonance images. The atlas was generated using
unbiased population registration from high-resolution images obtained by multichannel-coil acquisition at 3T in a group
of 24 normal subjects. The final atlas comprises three anatomical channels (T1-weighted, early and late spin echo), three
diffusion-related channels (fractional anisotropy, mean diffusivity, diffusion-weighted image), and three tissue probability
maps (CSF, gray matter, white matter). The atlas is dynamic in that it is implicitly represented by nonrigid transformations
between the 24 subject images, as well as distortion-correction alignments between the image channels in each subject.
The atlas can, therefore, be generated at essentially arbitrary image resolutions and orientations (e.g., AC/PC aligned),
without compounding interpolation artifacts. We demonstrate in this paper two different applications of the atlas: (a)
region definition by label propagation in a fiber tracking study is enabled by the increased sharpness of our atlas compared
with other available atlases, and (b) spatial normalization is enabled by its average shape property. In summary, our atlas
has unique features and will be made available to the scientific community as a resource and reference system for future
imaging-based studies of the human brain.