Low field MRI with magnetoresistive mixed sensors
| Autor: | G Cannies, H Dyvorne, H Polovy, Q Herreros, Juhani Dabek, Claude Fermon, Myriam Pannetier-Lecoeur, N Sergeeva-Chollet, G. Le Goff |
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| Rok vydání: | 2011 |
| Předmět: |
History
Materials science medicine.diagnostic_test Magnetoresistance business.industry Magnetometer Physics::Medical Physics Electrical engineering Magnetic resonance imaging Low field mri Superconducting loop Computer Science Applications Education law.invention Mri image law Shielded cable medicine Optoelectronics business Transformer |
| Zdroj: | Journal of Physics: Conference Series. 303:012055 |
| ISSN: | 1742-6596 |
| DOI: | 10.1088/1742-6596/303/1/012055 |
| Popis: | Low-field magnetic resonance imaging (MRI) requires very sensitive magnetometers for detection of weak magnetic signals in femtoTesla range. Magnetoresistive mixed sensors could be used as the sensitive magnetometers [1]. These sensors are the combination of a Giant Magnetoresistive (GMR) field sensor and a superconducting loop used as a flux-to-field transformer. A MRI set-up based on mixed sensor has been mounted. This system operates in static field up to 10mT without shielded room. We will present the LF-MRI setup with the implementation of mixed sensors and the first MRI images obtained at low field without prepolarization. |
| Databáze: | OpenAIRE |
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