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A rhesus monkey reference label atlas for template driven segmentation.

Jonathan J Wisco¹, Douglas L Rosene, Ronald J Killiany

¹Laboratory for Cognitive Neurobiology, Department of Anatomy and Neurobiology, Boston University School of Medicine, Boston, MA, USA. jjwisco@mednet.ucla.edu

Journal of Medical Primatology

|May 10, 2008

Summary

This summary is machine-generated.

Template Driven Segmentation (TDS) accurately measures most rhesus monkey brain region volumes. While TDS shows high reproducibility, further improvements in data quality are needed to enhance sensitivity for future aging studies.

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Area of Science:

Neuroimaging
Primate Brain Anatomy
Aging Research

Background:

Longitudinal dual-echo spin-echo (DE SE) MRI data of rhesus monkey brains collected since 1994 for normal aging studies.
Development of a reference label atlas for the Template Driven Segmentation (TDS) algorithm to analyze legacy MRI data for regional volume changes.

Purpose of the Study:

To create a reference label atlas for the Template Driven Segmentation (TDS) algorithm.
To analyze the reproducibility and validity of the TDS algorithm for rhesus monkey brain segmentation.

Main Methods:

Manual creation of a 14-region of interest (ROI) atlas from DE SE legacy MRI data of a young male rhesus monkey.
Comparison of TDS algorithm segmentation with manual segmentation for reproducibility and validity analysis.

Main Results:

TDS segmentation calculated comparable ROI volumes to manual segmentation, with overestimation noted in basal ganglia regions.
Both TDS and manual segmentation demonstrated high reproducibility.
TDS exhibited lower sensitivity but comparable specificity to manual segmentation.

Conclusions:

Template Driven Segmentation (TDS) provides accurate volume calculations for most rhesus monkey brain ROIs.
Enhancing data quality in future studies is expected to improve TDS sensitivity for detecting subtle regional volume changes in aging research.