System and method for quantitative analysis of nuclear medicine brain imaging

A system for quantitative analysis of nuclear medicine imaging, comprising:

• an image capturing unit configured to capture a target image, wherein the target image is a brain image as a nuclear medicine image of brain produced from a radiopharmaceutical;
• a processing unit configured to map a coordinate space and a voxel shape of the target image to a standard brain template by an affine transformation, wherein the standard brain template comprises a striatum relative position, then extract a striatum region from the target image according to the striatum relative position in the standard brain template, and calculate an average pixel value of the striatum region, dividing the striatum region from the target image, and calculating a background value based on a pixel value of a remainder region from the target image;
• and
• a computing unit configured to calculate a first specific uptake ratio based on the average pixel value of the striatum region and the background value.