Magnetic resonance devices and radiofrequency coils thereof

A radiofrequency coil for magnetic resonance imaging (MRI), comprising at least two coil portions, a transmission line, and a preamplifier;

• wherein
• each of the at least two coil portions including one or more flexible protective layers and one or more flexible coil units, with the one or more flexible coil units being disposed on the one or more flexible protective layers and used to receive a magnetic resonance (MR) signal of an object, wherein,
• at least one of the at least two coil portions is capable of bending in at least two directions, and a structure formed by the bending of the at least one of the at least two coil portions matches a target scanning region of the object;
• a first end of the transmission line is connected to the one or more flexible coil units, a second end of the transmission line extends outside the one or more flexible protective layers, the transmission line is used to achieve impedance matching between the one or more flexible coil units;
• the transmission line is a flexible conductive wire;
• the impedance matching is achieved by designing a size of the transmission line to provide a characteristic impedance for the one or more flexible coil units;
• and
• the preamplifier is disposed outside a carrying range of the one or more flexible protective layers, and the preamplifier is connected to the second end of the transmission line extending outside the one or more flexible protective layers.

A radiofrequency coil for magnetic resonance imaging (MRI), comprising at least one coil portion, a transmission line, and a preamplifier;

• wherein,
• each of the at least one coil portion includes one or more flexible protective layers and one or more flexible coil units, the one or more flexible coil units are disposed on the one or more flexible protective layers and used to receive a magnetic resonance (MR) signal of an object;
• a first end of the transmission line is connected to the one or more flexible coil units, a second end of the transmission line extends outside the one or more flexible protective layers, the transmission line is used to achieve impedance matching between the one or more flexible coil units;
• the transmission line is a flexible conductive wire;
• the impedance matching is achieved by designing a size of the transmission line to provide a characteristic impedance for the one or more flexible coil units;
• and
• the preamplifier is disposed outside a carrying range of the one or more flexible protective layers, and the preamplifier is connected to the second end of the transmission line extending outside the one or more flexible protective layers.