Related Experiment Videos
Use of functional magnetic resonance imaging
C C Lee1, C R Jack, S J Riederer
1Magnetic Resonance Research Laboratory, Mayo Clinic, Rochester, Minnesota, USA.
Neurosurgery Clinics of North America
|October 1, 1996
Summary
Functional magnetic resonance imaging (fMRI) offers wide availability for clinical and experimental studies. Ongoing research aims to improve fMRI reliability for precise brain activity mapping.
Area of Science:
- Neuroimaging
- Functional Magnetic Resonance Imaging (fMRI)
Background:
- Magnetic Resonance Imaging (MRI) scanners are widely available, exceeding the number of Positron Emission Tomography (PET) and Magnetoencephalography (MEG) units.
- This widespread availability makes functional MRI (fMRI) a potentially accessible neuroimaging technique.
Purpose of the Study:
- To provide a background on fMRI techniques.
- To highlight the potential applications of fMRI in clinical and experimental research.
- To discuss the current limitations and future directions for fMRI.
Main Methods:
- fMRI utilizes MR imaging scanners to detect brain activity.
- Studies focus on mapping sensorimotor and visual cortices.
- Research is exploring methods to mitigate head motion artifacts.
Main Results:
- Initial fMRI studies have successfully validated and reproduced results in mapping sensorimotor and visual cortices.
- Mapping of language lateralization and memory functions using fMRI is still in preliminary stages.
- Improvements in reducing head motion are expected to enhance fMRI reliability.
Conclusions:
- fMRI holds significant potential for widespread clinical and experimental use due to the existing MR imaging infrastructure.
- Further advancements in methodology, particularly in motion artifact reduction, are crucial for improving the reliability and scope of fMRI applications.
- While sensorimotor and visual cortex mapping is established, further research is needed for complex cognitive functions like language and memory.