Session 7 - Life Sci 2C03 Session 7 Session 7 Neuroimaging...

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Life Sci 2C03 – Session 7 Session 7 – Neuroimaging and Intro to Molecular Tools Single Photon Emission Computed Tomogram (SPECT) 1. radiochemical substance injected in blood and binds to tissue indicating there is good blood flow in that region and so can be indicative of low blood flow less brain activity 1. SPECT and Epileptic Seizures 1. Increased blood flow in brain w/ seizures 1. SPECT used to determine exact focus of seizure prior to epilepsy surgery 2. Principles of SPECT: 1. similar to PET using radiotracer and involving gamma rays but much lower spatial resolution than PET and no positrons 2. significantly cheaper than PET 3. the pharmaceutical substance is injected into blood 4. being cheaper ideal for routine early diagnosis and follow up 1. Uses 1. Look at blood flow; can study structure and function of brain 1. SPECT scanner used in Parkinson’s routinely MRI-Tactography (Diffusion Tensor Imaging) 1. Reconstructs nerve pathways in the brain 2. Improper nerve fibres can be identified
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Session 7 - Life Sci 2C03 Session 7 Session 7 Neuroimaging...

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