| Autor: |
Katie Dinelle, Arman Rahmim, Olivier Rousset, Dean F. Wong, Benjamin M. W. Tsui, Vesna Sossi, Ju-Chieh Cheng, Mikhail Shilov, William P. Segars |
| Rok vydání: |
2006 |
| Předmět: |
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| Zdroj: |
2006 IEEE Nuclear Science Symposium Conference Record. |
| Popis: |
In high resolution emission tomography imaging, even small patient movements can considerably degrade image quality. This work investigates an approach to motion compensated reconstruction of motion-contaminated data, thus applicable to any scanner in the field (e.g. without list-mode acquisition capability), assuming externally-tracked motion information; it involves incorporation of the measured motion information into the system matrix of the EM algorithm. Furthermore, it is shown that the effect of motion-contamination of the attenuation factors should also be modeled and taken into account in the reconstruction task. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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