A New Technological Fusion of PET and MRI for Brain Imaging
Journal: Journal of Analytical Science and Technology (JAST) (Vol.2, No. 1)Publication Date: 2011-02-09
Authors : Jee-Hyun Cho Janggeun Cho Seungkyun Hwang Sangdoo Ahn Eun Kyoung Ryu Chulhyun Lee;
Page : 30-35
Keywords : Parkinson’s disease; PET; MRI; CT; Fusion image;
Abstract
Non-invasive imaging modalities for living animal models are a powerful research tool for the evaluation of potential drugs and treatments for human diseases. Parkinson’s disease is a neurodegenerative disorder associated with aging, and patients with this disease have a deficiency of dopaminergic neurons. In the study, we evaluated fusion imaging with positron emission tomography (PET) and magnetic resonance imaging (MRI) in the rat brain with [18F]FP-CIT which binds with high affinity to dopamine transporters. PET and MRI fusion images were well registered with conventional Inveon Research Workplace software, even though they are different modalities. In PET/MRI fusion images, we showed that the uptake of [18F]FP-CIT was clearly increased in the normal rat striatum and these images accurately matched the morphology in the rat brain atlas. PET/MRI images easily and accurately identified the regions of interest in the target tissue compared to PET/CT images and enabled us to calculate the uptake of the PET tracer. Therefore, combined PET/MRI analysis provides functional and anatomical information for studying biology and pathology in preclinical research.
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