MAGNETIC RESONANCE IMAGING DEVICE

• Main Authors: OISHI TAKAFUMI, FUHA SADANORI
• Format: Patent
• Language: English; Japanese
• Published: 17.09.2020
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; MEDICAL OR VETERINARY SCIENCE; PHYSICS; SURGERY; TESTING

To provide a magnetic resonance imaging device capable of sending a system clock stably to a wireless type local coil from a body without being affected by fading, and easily acquiring biological information such as a heart beat and respiration on a subject without imposing a burden on the subject.SOLUTION: A magnetic resonance imaging device includes: a local coil 20 for subjecting a magnetic resonance signal received from a subject to AD conversion, and transmitting it wirelessly; a body for wirelessly receiving the magnetic resonance signal, and generating a system clock; a first communication unit 100 for transmitting the system clock by surface electric field communication that uses electric field propagation along the body surface of the subject; and a second communication unit 200 provided to the local coil, which receives the system clock transmitted by the surface electric field communication.SELECTED DRAWING: Figure 3 【課題】本体から無線型の局所コイルに対して、フェージングの影響を受けることなく安定にシステムクロックを送信でき、加えて、被検体の心拍や呼吸等の生体情報を、被検体に負担をかけることなく簡便に取得できる、磁気共鳴イメージング装置を提供する。【解決手段】磁気共鳴イメージング装置は、被検体から受信した磁気共鳴信号をＡＤ変換して無線で送信する局所コイル２０と、磁気共鳴信号を無線で受信すると共に、システムクロックを生成する本体と、システムクロックを、被検体の体表面に沿った電界伝搬を利用する表面電界通信によって送信する第１通信部１００と、局所コイルに設けられる第２通信部２００であって、表面電界通信によって送信されるシステムクロックを受信する第２通信部と、を備える。【選択図】図３