HIGH-FREQUENCY COIL DEVICE AND MAGNETIC RESONANCE IMAGING APPARATUS USING THE SAME

HIGH-FREQUENCY COIL DEVICE AND MAGNETIC RESONANCE IMAGING APPARATUS USING THE SAME

A high-frequency coil device can maintain a distance between coils at any mounting position in an RF coil including a movable coil unit and can achieve a uniform sensitivity distribution and high sensitivity. A first coil unit configured to move along a substantially circular trajectory and a second...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Ikeda, Asuka, Otake, Yosuke, Arai, Koichi
Format: Patent
Sprache:eng
Schlagworte:
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Beschreibung
Zusammenfassung:A high-frequency coil device can maintain a distance between coils at any mounting position in an RF coil including a movable coil unit and can achieve a uniform sensitivity distribution and high sensitivity. A first coil unit configured to move along a substantially circular trajectory and a second coil unit fixed within the substantially circular trajectory are provided, the first coil unit and the second coil unit are disposed at substantially point-symmetric positions, and magnetic coupling between conductor loops provided in both the coil units is maintained substantially constant in a movable range of the first coil unit.