US 11,815,573 B2
Magnetic resonance volume coil with multiple independent transmit receive channels
Zhiyong Zhai, Gainesville, FL (US); and Paul Royston Harvey, Best (NL)
Assigned to Koninklijke Philips N.V., Eindhoven (NL)
Appl. No. 17/773,683
Filed by KONINKLIJKE PHILIPS N.V., Eindhoven (NL)
PCT Filed Oct. 30, 2020, PCT No. PCT/EP2020/080479
§ 371(c)(1), (2) Date May 2, 2022,
PCT Pub. No. WO2021/089417, PCT Pub. Date May 14, 2021.
Claims priority of provisional application 62/930,607, filed on Nov. 5, 2019.
Claims priority of application No. 19210015 (EP), filed on Nov. 19, 2019.
Prior Publication US 2022/0390536 A1, Dec. 8, 2022
Int. Cl. G01R 33/3415 (2006.01); G01R 33/34 (2006.01)
CPC G01R 33/3415 (2013.01) [G01R 33/34046 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a dipole-array based volume coil, the dipole-array based volume coil comprising a plurality of straight dipole antennas, wherein the straight dipole antennas are substantially parallel with each other, wherein the dipole-array based volume coil has a first axial end and a second axial end;
at least three circular conducting rings, including a first circular conducting ring, a second circular conductive ring, and a third circular conductive ring, wherein the three circular conducting rings radially surround the dipole-array based volume coil,
wherein the first circular conducting ring is located at the first axial end of the dipole-array based volume coil, wherein the second circular conducting ring is located at the second axial end of the dipole-array based volume coil, and
wherein the third circular conducting ring is located between the first circular conducting ring and the second circular conducting ring, surrounding a center of the dipole-array based volume coil,
wherein the first circular conducting ring, the second circular conducting ring, and the third circular conducting ring are substantially parallel with each other,
a cylindrical RF shield, situated about the dipole-array based volume coil and the at least three circular conducting rings;
a plurality of independent transmit/receive (T/R) radio frequency (RF) channels for driving the dipole-array based volume coil and the at least three circular conducting rings, wherein the plurality of independent T/R RF channels includes at least a first T/R RF channel, a second T/R RF channel, and a third T/R RF channel,
wherein at least the first T/R RF channel is assigned to the dipole-array based volume coil,
wherein the second T/R RF channel is assigned to at least one of the first circular conducting ring and the second circular conducting ring, wherein the third circular conducting ring has at least a first port and a second port, and
wherein the third T/R RF channel is assigned to at least one of the first and second ports of the third circular conducting ring for applying a set of quadrature drive signals to the third circular conducting ring.