Implementation and performance of an optical motion tracking system for high resolution brain PET imaging
- 1 December 1999
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science
- Vol. 46 (6) , 2059-2067
- https://doi.org/10.1109/23.819283
Abstract
Head motion during PET scanning is widely regarded as a source of image degradation and resolution loss. Recent improvements in the spatial resolution of state-of-the-art tomographs may be compromised by patient motion during scanning, as these high resolution data will be increasingly susceptible to smaller movements of the head. The authors have developed an opto-electronic motion tracking system based on commercially-available technology that is capable of very accurate real-time measurements of the position and orientation of the patient's head. These positions are transformed to the reference frame of the PET scanner, and could potentially be used to provide motion correction of list-mode emission data on an event-by-event basis.Keywords
This publication has 8 references indexed in Scilit:
- Motion correction of PET images using multiple acquisition framesIEEE Transactions on Medical Imaging, 1997
- A head motion measurement system suitable for emission computed tomographyIEEE Transactions on Medical Imaging, 1997
- Compensation methods for head motion detected during PET imagingIEEE Transactions on Nuclear Science, 1996
- Digitized video subject positioning and surveillance system for PETIEEE Transactions on Nuclear Science, 1995
- Head motion during positron emission tomography: is it significant?Psychiatry Research: Neuroimaging, 1995
- Spatial registration and normalization of imagesHuman Brain Mapping, 1995
- Rapid Automated Algorithm for Aligning and Reslicing PET ImagesJournal of Computer Assisted Tomography, 1992
- Closed-form solution of absolute orientation using unit quaternionsJournal of the Optical Society of America A, 1987