US 11,896,359 B2
Multi-channel magnetic resonance imaging RF coil
Christoph Leussler, Norderstedt (DE); and Ingo Schmale, Hamburg (DE)
Assigned to Koninklijke Philips N.V., Eindhoven (NL)
Appl. No. 16/962,244
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed Jan. 15, 2019, PCT No. PCT/EP2019/050859
§ 371(c)(1), (2) Date Jul. 15, 2020,
PCT Pub. No. WO2019/141645, PCT Pub. Date Jul. 25, 2019.
Claims priority of application No. 18152379 (EP), filed on Jan. 18, 2018.
Prior Publication US 2021/0059556 A1, Mar. 4, 2021
Int. Cl. G01R 33/34 (2006.01); A61B 5/055 (2006.01); G01R 33/36 (2006.01); G01R 33/565 (2006.01)
CPC A61B 5/055 (2013.01) [G01R 33/34076 (2013.01); G01R 33/3607 (2013.01); G01R 33/3678 (2013.01); G01R 33/5659 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A multi-channel magnetic resonance imaging radio frequency (RF) coil with at least four channels, the RF coil comprising:
a coil element for each of the channels; and
a socket corresponding to each coil element, wherein the socket is electrically coupled to said corresponding coil element via a respective first transmission line, each socket being adapted for receiving a plug for providing an RF signal via the respective first transmission line to the corresponding coil element, wherein with respect to a predefined RF signal differences in electrical length between any of the first transmission lines are kλ/4 resulting in a predefined phase relationship at the sockets, where k is an integer and λ is the wavelength of the RF signal, the RF coil being configured to be driven at the wavelength of the RF signal,
wherein the RF coil has four channels with two pairs of the first transmission lines, wherein within each pair the first transmission lines are of the same electrical length as each other, and wherein the differences in electrical length between the first transmission lines of the two pairs is λ/4.