Failsafe protection from induced RF current for MRI RF coil assembly having transmit functionality

US8269499B2 · kind B2 · utility

Assignees

• Quality Electrodynamics, LLC · US
• TOSHIBA MEDICAL SYSTEMS CORPORATION · JP

Inventors

• Yoshinori Hamamura · Moreland Hills, US
• Xiaoyu Yang · Hangzhou City, CN
• Nicholas Castrilla · Ravenna, US
• Christopher J. Allen · Pleasant Ridge, US
• Shinji Mitsui · Nasushiobara, JP

Key dates

• Filing date: Jun 1, 2010
• Grant date: Sep 18, 2012
• Expiry date: Jun 7, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/543
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An electrically-controlled failsafe switch is included in an MRI transmit-and-receive RF coil assembly so as to protect it from induced RF currents in the event it is disconnected from an MRI system, but inadvertently left linked to strong MRI RF fields during imaging procedures using other RF coils.