Title:
Single coaxial interface for magnetic resonance (MR) coils
Document Type and Number:
Japanese Patent JP6318236
Kind Code:
B2
Abstract:
A magnetic resonance (MR) coil array (26, 28) connected by way of a single transmission line (46, 48) is provided. The MR coil array (26, 28) includes a coil element (34) and a corresponding coil element circuit (32). The coil element circuit (32) includes at least one active component (40) powered by a power signal carried on the coaxial transmission line (46, 48). The voltage of the power signal varies between first and second direct current (DC) voltages of the same polarity. The coil element circuit (32) further includes a tune/detune circuit (42) connected to the coaxial transmission line (46, 48). The tune/detune circuit (42) tunes or detunes the coil element (34) based on the first and second DC voltages. An MR system (10) using the MR coil array (26, 28) and a method (10) for tuning or detuning the MR coil (26, 28) are also provided. Accordingly, a single coaxial cable between the MR system and the coil element is sufficient for conveying MR data, a power signal for the preamplifier and a detuning signal. Moreover, the preamplifier can be powered irrespective of the coil element being in the tuned or in the detuned state.
Inventors:
Reikowski, Arne
Howen, Rodney
Rufen, Henricus Heraldus
Defleece, Lambertus
Howen, Rodney
Rufen, Henricus Heraldus
Defleece, Lambertus
Application Number:
JP2016509569A
Publication Date:
May 09, 2018
Filing Date:
April 08, 2014
Export Citation:
Assignee:
KONINKLIJKE PHILIPS N.V.
International Classes:
A61B5/055
Domestic Patent References:
| JP2000116615A | ||||
| JP2008520286A | ||||
| JP1160539A | ||||
| JP5088502U |
Foreign References:
| US20120223714 | ||||
| US5491415 | ||||
| WO2006107344A2 | ||||
| WO1987001199A1 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Shinsuke Onuki
Tadahiko Ito
Shinsuke Onuki