Читать книгу Dental Neuroimaging - Chia-shu Lin - Страница 42

 The brain and mental functions, sometimes metaphorized as a ‘black box’, can hardly be examined directly at the chairside. Therefore, a pivotal step to facilitate the investigation of the brain is to develop the technology for quantifying brain structure and functions.

 Neuroimaging is a non‐invasive approach that visualizes the CNS, especially the brain.

 One of the major goals of using structural MRI is to investigate the morphology, including the size and shape, of the anatomical structure of the brain.

 The functional MRI methods investigate the brain signals associated with brain functions, including BOLD fMRI and perfusion MRI.

 The BOLD fMRI detects the changes in the proportion of deoxygenated and oxygenated haemoglobin in the brain. This metabolic event is indirectly associated with neural activity.