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SOFIA: spatially optimal fast initial analysis of biomagnetic signals
- Source :
- Physics in medicine and biology. 44(1)
- Publication Year :
- 1999
-
Abstract
- A method of analysing biomagnetic signals is presented which focuses attention on activity in a specific region of interest. The method is based on the construction of virtual sensors, corresponding to linear combinations of lead fields that are optimally localized within the region of interest. This method is fast and stable. It is tested against physiologically plausible computer generated signals and also against more elaborate analysis of real data. The results show that the method can be very effective as a fast scanning tool identifying activity from pre-defined regions of interest.
- Subjects :
- Signal processing
Brain Mapping
Radiological and Ultrasound Technology
medicine.diagnostic_test
business.industry
Computer science
Phantoms, Imaging
Fast scanning
Brain
Magnetoencephalography
Magnetics
Region of interest
medicine
Humans
Radiology, Nuclear Medicine and imaging
Computer Simulation
Artificial intelligence
Biological system
business
Algorithms
Subjects
Details
- ISSN :
- 00319155
- Volume :
- 44
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Physics in medicine and biology
- Accession number :
- edsair.doi.dedup.....8e17ed483e9a06f0b36546275f5b8834