Optical sensor position indicator for neonatal MEG.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 22010142.
- Also identified by DOI 10.1109/TBME.2011.2171960 and PMC identifier 3244568.
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Abstract
We have developed an inexpensive PC camera-based system to measure sensor position and to track head motion during magnetoencephalography recordings. The system employs mirrors to triangulate the position of markers using a single camera. Sensor position measurement and head tracking can be performed without the need to manually digitize markers or fiducial points. The system is capable of measuring relative 3-D position within the required volume of interest with an accuracy of ~450 μm and can be constructed for approximately $150.
Medical subject headings
- Artifacts
- Brain Mapping
- Head Movements
- Imaging, Three-Dimensional
- Magnetoencephalography
- Optical Devices
- Prenatal Diagnosis