FIELD: medicine.
SUBSTANCE: invention refers to medical equipment, namely to devices applicable in magnetic resonance imaging systems. A catheter comprises a transmission line accommodating a number of radio-frequency stop-band filters, and a fluid cooling line for a number of the radio-frequency stop-band filters. The magnetic resonance imaging system comprises a magnet configured to generate a magnetic field to direct magnetic spins of atomic nuclei of an object located in an imaging space, a radio-frequency system configured to collect magnetic resonance data and comprising a radio-frequency transceiver and radio-frequency coil, a magnetic gradient coil configured to perform spatial coding of magnetic spins of atomic nuclei in the imaging space, a power supply of the magnetic gradient coil, an electrode designed for creating an electrical connection with the object, a radio-frequency generator configured to generate a radio-frequency power at a first frequency and connected to the electrode of the object, and a computer system configured to create images from the magnetic resonance data and control the operation of the magnetic resonance imaging system.
EFFECT: using the invention enables reducing a possibility of a radio-frequency stop-band filter failure caused by heating.
15 cl, 23 dwg
