Rhesus Macaque Brain Atlas Regions Aligned to an MRI Template

• Published in: Neuroinformatics (Totowa, N.J.) Vol. 17; no. 2; pp. 295 - 306
• Main Authors: Moirano, Jeffrey M., Bezgin, Gleb Y., Ahlers, Elizabeth O., Kötter, Rolf, Converse, Alexander K.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.04.2019; Springer Nature B.V
• Subjects: Animals; Atlases as Topic; Bioinformatics; Biomedical and Life Sciences; Biomedicine; Brain - anatomy & histology; Computational Biology/Bioinformatics; Computer Appl. in Life Sciences; Cortex; Dopamine D2 receptors; Hand; Humans; Image Processing, Computer-Assisted - methods; Imaging, Three-Dimensional - methods; Macaca mulatta; Macaca mulatta - anatomy & histology; Magnetic resonance imaging; Magnetic Resonance Imaging - methods; Male; Medical imaging; Monkeys & apes; Neostriatum; Neuroimaging; Neuroimaging - methods; Neurology; Neurosciences; NMR; Nuclear magnetic resonance; Original Article; Positron emission tomography; Positron-Emission Tomography - methods; Substantia grisea; Magnetic resonance imaging (MRI); Brain; Atlas; Positron emission tomography (PET); Regions of interest; Rhesus macaque
• ISSN: 1539-2791; 1559-0089; 1559-0089
• DOI: 10.1007/s12021-018-9400-2

To aid in the analysis of rhesus macaque brain images, we aligned digitized anatomical regions from the widely used atlas of Paxinos et al. to a published magnetic resonance imaging (MRI) template based on a large number of subjects. Digitally labelled atlas images were aligned to the template in 2D and then in 3D. The resulting grey matter regions appear qualitatively to be well registered to the template. To quantitatively validate the procedure, MR brain images of 20 rhesus macaques were aligned to the template along with regions drawn by hand in striatal and cortical areas in each subject’s MRI. There was good geometric overlap between the hand drawn regions and the template regions. Positron emission tomography (PET) images of the same subjects showing uptake of a dopamine D 2 receptor ligand were aligned to the template space, and good agreement was found between tracer binding measures calculated using the hand drawn and template regions. In conclusion, an anatomically defined set of rhesus macaque brain regions has been aligned to an MRI template and has been validated for analysis of PET imaging in a subset of striatal and cortical areas. The entire set of over 200 regions is publicly available at https://www.nitrc.org/ . Graphical Abstract ᅟ