Title:
HIGH-FREQUENCY COIL APPARATUS AND MAGNETIC RESONANCE IMAGING APPARATUS
Document Type and Number:
Japanese Patent JP2019051232
Kind Code:
A
Abstract:
To reduce heat generation in a high-frequency coil apparatus.SOLUTION: A high-frequency coil apparatus 40 according to the present invention includes a plurality of coil elements and a multiplexing circuit. The plurality of coil elements receive magnetic resonance signals. The multiplexing circuit multiplexes the magnetic resonance signals using a local frequency. The multiplexing circuit includes a mixer circuit and a narrow-band matching circuit. The mixer circuit has a local port through which a local signal having the local frequency is input. The mixer circuit transforms the frequencies of the magnetic resonance signals according to the local frequency of the local signal input through the local port. The narrow-band matching circuit matches, in a narrow band, a local signal to be input through the local port to the local frequency.SELECTED DRAWING: Figure 2
Inventors:
MIYAKE HISAO
TAKANO YUJI
TAKANO YUJI
Application Number:
JP2017178891A
Publication Date:
April 04, 2019
Filing Date:
September 19, 2017
Export Citation:
Assignee:
CANON MEDICAL SYSTEMS CORP
International Classes:
A61B5/055; G01R33/36
Attorney, Agent or Firm:
Kurata Masatoshi
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Tadashi Inoue
Ukai Ken
Nobuhisa Nogawa
Takashi Mine
Naoki Kono
Tadashi Inoue
Ukai Ken