The invention relates to the technical field of
medical treatment, in particular to an interventional
radio frequency coil and a using method thereof, and the interventional
radio frequency coil comprises a multi-cavity
catheter which is internally provided with a line channel, an inner bag channel, an outer bag channel and an
endoscope channel; the inner
balloon is arranged on the surface of the multi-cavity
catheter and communicated with the inner
balloon channel, and the filling state of the inner
balloon is adjusted through the inner balloon channel; the coil main body is arranged on the outer surface of the inner balloon, the shape of the coil main body can be adjusted by filling or decompressing the inner balloon, and a circuit of the coil main body is led out through the circuit channel; the outer balloon is arranged on the surface of the multi-cavity
catheter and located on the outer side of the inner balloon and the coil body; the filling state of the outer balloon can be adjusted through the outer balloon channel, and the outer balloon tightly holds the coil body during pressure relief; when the outer balloon is full, surrounding tissue can be expanded, so that the coil body is separated from the tissue. The scheme is used for realizing high-
signal-to-
noise-ratio and high-resolution imaging in magnetic
resonance deep tissues or cavities.