Patent ID: 9709645
Date: 2017-07-18
CPC Classifications: G01R

Claim:
1. A phased array radio-frequency (RF) coil for magnetic resonance imaging (MRI), the phased array RF coil comprising: a cylindrical frame including a coaxial inner frame and a coaxial outer frame having different diameters and extending between a first end of the cylindrical frame and a second end of the cylindrical frame in a lengthwise direction; and vertical loop coils arranged in a circumferential direction of the cylindrical frame, wherein each vertical loop coil comprises: an inner conductor extending on the coaxial inner frame in the lengthwise direction between the first and second ends of the cylindrical frame; an outer conductor extending on the coaxial outer frame in the lengthwise direction between the first and second ends of the cylindrical frame and facing the inner conductor; a first resonant frequency adjustment capacitor which connects one end of the inner conductor and one end of the outer conductor at the first end of the cylindrical frame; and a second resonant frequency adjustment capacitor which connects another end of the inner conductor and another end of the outer conductor at the second end of the cylindrical frame, wherein the first resonant frequency adjustment capacitor, the inner conductor, the second resonant frequency adjustment capacitor, and the outer conductor are connected to one another to form an electrical loop, and the first resonant frequency adjustment capacitor and the second resonant frequency adjustment capacitor cooperate so that the phased array RF coil resonates at an MR operating frequency.