Blood-oxygen-level-dependent imaging - Wikipedia
Blood-oxygen-level-dependent imaging, or BOLD-contrast imaging, is a method used in functional magnetic resonance imaging (fMRI) to observe different areas of the brain or other organs, which are found to be active at any given time.
Principles of BOLD Functional MRI | Section on Functional Imaging …
Principles of BOLD Functional MRI. Functional magnetic resonance imaging (fMRI) is one of the most important tools for visualizing neural activity in the human brain. The blood oxygenation level-dependent (BOLD) contrast has been most widely used …
BOLD imaging | Radiology Reference Article - Radiopaedia.org
2021年4月12日 · Blood oxygenation level dependent (BOLD) imaging is the standard technique used to generate images in functional MRI (fMRI) studies, and relies on regional differences in cerebral blood flow to delineate regional activity.
The Underpinnings of the BOLD Functional Magnetic Resonance …
2003年5月5日 · In this review I will concentrate on only one aspect of this complex issue, namely the type of neural activity that could play a dominant role in the generation of one sort of fMRI signal: the imaging signal capitalizing on the blood oxygen level …
Overview of Functional Magnetic Resonance Imaging - PMC
Blood Oxygen Level Dependent (BOLD) functional magnetic resonance imaging (fMRI) depicts changes in deoxyhemoglobin concentration consequent to task-induced or spontaneous modulation of neural metabolism.
Intracranial electrophysiological and structural basis of BOLD ...
2023年6月9日 · While functional MRI (fMRI) studies have mainly focused on gray matter, recent studies have consistently found that blood-oxygenation-level-dependent (BOLD) signals can be reliably detected in...
Principles of BOLD Functional MRI | SpringerLink
2011年1月1日 · In this chapter, we discussed (1) various fMRI techniques, (2) the sources of the BOLD fMRI signals, (3) improvement of BOLD techniques, (4) contrast-to-noise consideration, and (5) spatial and temporal resolution.
Bold fMRI - ASFNR
Since the development of blood oxygenation level dependent (BOLD) contrast scanning methods in the early 1990s, functional MRI (fMRI) has grown to become a pillar of neurocognitive research. It has also entered into widespread clinical use for mapping eloquent brain cortex in preparation for neurosurgery for brain tumors or epilepsy.
How and when the fMRI BOLD signal relates to underlying neural …
Functional magnetic resonance imaging (fMRI) has become the dominant means of measuring behavior-related neural activity in the human brain. Yet the relation between the blood oxygen-level dependent (BOLD) signal and underlying neural activity remains an open and actively researched question.
What does fMRI tell us about neuronal activity? - Nature
The fundamental signal for blood oxygen level dependent (BOLD) functional magnetic resonance imaging (fMRI) comes from hydrogen atoms, which are abundant in the water molecules of...
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