JP2003325510A5 - - Google Patents

Claims (8)

US control means for driving an ultrasonic probe to irradiate a subject with imaging ultrasonic waves and processing an ultrasonic signal received by the ultrasonic probe, and a tomography based on the received ultrasonic signal An ultrasonic medical device having US image generation means for generating an image;
MR control means for executing an imaging sequence for applying a gradient magnetic field and a high-frequency pulse to the subject placed in a static magnetic field according to a set tomographic plane, and a nuclear magnetic resonance signal generated from the subject by execution of the imaging sequence A magnetic resonance imaging apparatus having MR image generation means for generating a tomographic image based on
At least one display unit for displaying an image generated by the US image generation unit and the MR image generation unit, a position and orientation detection pointer fixed to the ultrasonic probe, and an apparatus main body of the magnetic resonance imaging apparatus a reference pointer provided fixed, the detected pointer and said the camera to the reference pointer is receivable positioned, the magnetic resonance imaging of the position and orientation of the ultrasound probe on the basis of the image receiving data 該Ka Mela Probe position calculation means for converting into the coordinate system of the device ,
Ultra to determine the setting tomographic plane of the MR image based on the focal position of the ultrasonic probe to be outputted from the US control means and the position and orientation of the transformed the ultrasonic probe by the probe position calculation means Sonic-magnetic resonance composite medical device. The ultrasonic-magnetic resonance composite medical apparatus according to claim 1, further comprising cooperative control means for outputting the determined set tomographic plane to the MR control means. The MR control unit executes the imaging sequence for the determined set tomographic plane, detects a lesion part based on the MR tomogram displayed on the display unit by the execution, and based on the position of the lesion part The ultrasonic-magnetic resonance composite medicine according to claim 2 , wherein the position of the convergence point of the therapeutic ultrasound beam is calculated from the image data, and the calculated convergence point position is output to the US control means. apparatus. The MR control unit executes the imaging sequence for the determined set tomographic plane, detects a mark representing a treatment point input and set in the MR tomographic image displayed on the display unit by the execution, and The ultrasonic wave according to claim 2 , wherein the position of the convergence point of the therapeutic ultrasound beam is calculated from the image data based on the position, and the calculated convergence point position is output to the US control means. Magnetic resonance composite medical device. The US control unit controls the convergence point position of the therapeutic ultrasound beam based on the input convergence point position of the therapeutic ultrasound beam, and responds to a given command from the ultrasound probe to the therapeutic ultrasound beam. Irradiate sound waves,
The MR control unit outputs a convergence point position of a therapeutic ultrasonic beam to the US control unit, and then executes a T1 or T2-weighted image capturing sequence for a tomographic plane including the convergence point. Item 5. The ultrasonic-magnetic resonance composite medical device according to Item 3 or 4 . The MR control unit measures a temperature change of an MR tomogram based on image data of the T1 or T2 weighted image, and displays a color mapping image on the display device according to the temperature change. Item 6. The ultrasonic-magnetic resonance composite medical device according to Item 5 . The US control means takes in the coordinate data of the position and orientation of the ultrasonic probe converted into the MR coordinate system output from the cooperative control means, and corresponds the MR coordinate data to the image data of the ultrasonic three-dimensional tomographic image. Let me remember,
The MR control means executes an imaging sequence for imaging an MR three-dimensional image of a region corresponding to the ultrasonic three-dimensional tomographic image, extracts a boundary of a specific tissue based on the MR three-dimensional image, and relates to the boundary 3. The ultrasonic-magnetic resonance composite medical apparatus according to claim 2 , wherein image data is output to the display means and displayed superimposed on the ultrasonic three-dimensional tomographic image. The US control means takes in the coordinate data of the position and orientation of the ultrasonic probe converted into the MR coordinate system output from the cooperative control means, and corresponds the MR coordinate data to the image data of the ultrasonic three-dimensional tomographic image. Let me remember,
The MR control unit executes an imaging sequence for capturing an MR three-dimensional image of a region corresponding to the ultrasonic three-dimensional tomographic image, extracts a specific tissue boundary based on the MR three-dimensional image, and extracts the US control unit. Output to
The US control means to claim 2, characterized in that to display by extracting pixel data of the ultrasound three-dimensional tomogram of the MR control means within the boundaries of a particular tissue extracted by the display means The ultrasonic-magnetic resonance composite medical device described.