Device transmitting magnetic resonance signal in MRI guided medical equipment

Abstract

The invention relates to the magnetic resonance field, in particular to a device transmitting magnetic resonance signals in a medical facilitie guided by MRI, which is designed for resolving the problems as the obturation of receiving coil and difficulty of moving in the prior art. The invention comprises a medical facilitie, a MRI system and a HIFU device connected with the MRI system, which is characterized in that: the device also comprises induced coils arranged outside the medical facilitie. The invention, by connecting cables and the MRI system, receives the electromagnetic wave signals and then transmits ton the MRI system. The invention has the advantages of preventing the coil connecting and sealing with the cables in the medical facilitie, thus facilitating the free moving of the coils.

Description

technical field [0001] The invention relates to the field of magnetic resonance, in particular to the field of magnetic resonance imaging, in particular to a device for transmitting magnetic resonance signals in MRI-guided medical equipment. Background technique [0002] Various forms of treatment can be performed on the body of a human or other mammal by applying energy from the outside, such as when using techniques beyond body temperature to apply ultrasound or radiofrequency energy from outside the body of the person being treated to Tissue heating, that is, high-energy focused ultrasonic knife (HIFU) technology, its principle is to emit high-energy ultrasonic waves without contact, couple into the human body through the water medium and focus, the applied energy can be focused on a small point in the body, Thus at this point the tissue is heated to a temperature sufficient to produce a desired therapeutic effect, killing the tissue at the focal point in a very short tim...

AI Technical Summary

Problems solved by technology

However, there are always some problems when these medical devices are used together with MRI systems. Taking HIFU treatment equipment as an example, during the MRI imaging process, RF signals are generally transmitted to the human body through a large body coil, and the large body coil receives RF signals from the human body The returned magnetic resonance signal, the MRI system uses the magnetic resonance signal for imaging, but the signal-to-noise ratio of this large body coil imaging cannot meet the requirements when using HIFU, a medical device that requires high imaging accuracy (body coil imaging The quality is not very high because the coil is too large, the larger the coil, the less ideal the imaging quality), so the local imaging quality is not high; or the magnetic resonance signal is obtained by fixing the receiving coil (Local Coil), but there are many limitations in application , because the fixed receiving coil needs to be placed in the HIFU solution to receive the magnetic resonance signal returned by the human body, and the fixed coil also needs to be connected with a cable, and the magnetic resonance signal is transmitted to the MRI processing part through the cable for imaging, so that The airtightness of the coil and the cable has a problem. Due to the need to seal the cable and the fixed coil, the fixed coil is inconvenient to move, which limits the imaging range. These problems are encountered when using the fixed coil. to the difficulty

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