Ultrasonic wave medical treatment apparatus suitable for use under guidance of magnetic resonance imaging
First Claim
1. An ultrasonic wave medical treatment apparatus, comprising:
- an MRI device for taking MR images of a patient, including a surface coil for receiving MR signals in taking the MR images; and
an ultrasonic wave treatment device for treating a treatment target, portion within the patient by irradiating ultrasonic waves thereon in accordance with the MR images taken by the MRI device, including an ultrasonic wave generator for generating ultrasonic waves focused onto the treatment target portion, wherein the surface coil of the MRI device is provided on the ultrasonic wave generator.
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Abstract
An ultrasonic wave medical treatment apparatus capable of preventing the displacement of the focal point of the ultrasonic waves from the treatment target portion within the patient, eliminating a need for re-positioning of the ultrasonic wave applicator with respect to the patient, and taking MR images to be utilized during the treatment at a high resolution. In this apparatus, the ultrasonic wave applicator can be integrally incorporated within a treatment table for carrying the patient into the MRI gantry for taking the MR images. The surface coil for taking the MR images can be provided on a surface film of a water bag in the ultrasonic wave applicator, or on a body cavity probe on which the ultrasonic transducer is also provided. The mixing rate of the coupling fluid can be adjusted, and the impedance matching between the ultrasonic transducer and the driving circuit can be maintained by minimizing the reflected electric power from the ultrasonic transducer.
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Citations
15 Claims
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1. An ultrasonic wave medical treatment apparatus, comprising:
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an MRI device for taking MR images of a patient, including a surface coil for receiving MR signals in taking the MR images; and an ultrasonic wave treatment device for treating a treatment target, portion within the patient by irradiating ultrasonic waves thereon in accordance with the MR images taken by the MRI device, including an ultrasonic wave generator for generating ultrasonic waves focused onto the treatment target portion, wherein the surface coil of the MRI device is provided on the ultrasonic wave generator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification