One of the goals of the BIRN is to promote the sharing of data. By reusing data, researchers can increase the size of the populations in study groups and thereby search for smaller and smaller disease effects. The reuse of data however, requires that inter-site effects and artifacts be minimized so that the full benefit of combining data from different sites is obtained. To this end, both the Brain Morphometry BIRN (MBIRN) and the Brain Function BIRN (fBIRN), have conducted studies on the causes and effects of inter-site variation. The Mouse BIRN also has a variety of imaging data available and has built atlasing tools that allow the registration of different types of imaging data. The data from these studies are available to the scientific community for use as calibration or comparison data, for reuse in a separate study, or as input data for the testing of new analysis or processing tools.
List of Data by Category
Human Functional Imaging Data
The following are large and diverse datasets collected as part of the
MBIRN and FBIRN collaboratories and throughout clinical imaging
communities at large.
fMRI Calibration Data (Agar Phantom)
Structural Brain Imaging Data
Researchers can use structural imaging data sets to discover
correlations between the volume of certain brain structures and
disease. The effects are usually subtle and large numbers of subjects
are often needed to identify correlations. Several groups connected
with BIRN have conducted such studies on populations throughout the
adult age range and including specific disease populations. In
addition, diffusion tensor imaging (DTI) is becoming an important part
of structural imaging studies. With this technique, one can visualize
tissue whose structure is ordered. One application is to study brain
white matter, which consists of oriented fibers. BIRN also provides
below a DTI data set from a single subject that can be used to build
up data with increasing of signal-to-noise ratio or simply used as
test data for processing or analysis software.
Cell Centered Database
Mouse Atlases
MouseBIRN has made available several multimodal digital atlases: