High intensity focused ultrasound (HIFU) labeling method guided by magnetic resonance imaging (MRI)
A technology of marking method and processing subsystem, applied in the directions of X-ray/γ-ray/particle irradiation therapy, etc., can solve the problems of insufficient three-dimensional information, low positioning accuracy, poor positioning accuracy, etc., and achieve simple and fast positioning process and positioning accuracy. The effect of high and high use value
Inactive Publication Date: 2019-06-18
徐司雨
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Problems solved by technology
[0006] The former method has low positioning accuracy and is prone to large errors, while the latter only achieves plane positioning without sufficient three-dimensional information, and in some relatively hidden parts, the positioning accuracy is poor and the efficiency is not high
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[0021] Such as figure 1 An MRI-guided HIFU labeling method for guiding radiotherapy and other procedures shown, including a 3D acquisition subsystem, a point cloud basic processing subsystem, and a real-time registration subsystem;
[0022] The 3D acquisition subsystem uses a laser speckle system and a high-precision color camera to obtain the original 3D point cloud data, specifically: using laser speckle structured light to obtain patient depth information, that is, 3D information, and using a color camera to obtain the color of the measured object information;
[0023] The cloud basic processing subsystem adopts the FPGA module and the DSP module to automatically adjust the human body direction and denoise the point cloud to obtain the three-dimensional point cloud human body surface contour, specifically: using the basic FPGA and DSP front-end point cloud processing system to obtain the complete Three-dimensional information, fusion of color statistical information, impro...
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The invention relates to a high intensity focused ultrasound (HIFU) labeling method guided by magnetic resonance imaging (MRI). The HIFU labeling method is used for guiding radiotherapy and other processes. A three-dimensional acquisition subsystem, a point cloud basic processing subsystem and a real-time registration subsystem are adopted by the method. Real-time position-verification comparisonof a human body is realized through a three-dimensional laser positioning method and the graphic processing unit (GPU) acceleration technology. The HIFU labeling method has the advantages that a patient is scanned through the three-dimensional laser optical scanning technology to obtain three-dimensional data, the error can be controlled to be about 0.5 mm, operational efficiency is improved through the GPU acceleration and parallel processing technology, and the whole operation process can be controlled within dozens of seconds.
Description
technical field [0001] The invention relates to the field of radiation therapy, in particular to an MRI-guided HIFU labeling method for guiding radiation therapy and other processes. Background technique [0002] Radiation therapy is one of the indispensable main methods to cure malignant tumors. "Radiation therapy department" or "tumor radiation therapy center" is a fighting group composed of multiple teams, each responsible for their own work and cooperating with each other, so as to be the most effective Protect the normal tissues and vital organs of tumor patients, and completely or maximize the elimination of tumor cells. Radiation therapy for tumors is usually formulated by physicians and physicists after a complete treatment plan, and the therapist spends one month to one and a half months to complete the treatment plan by accurately positioning the patient for irradiation. Each course of treatment takes about For 30 days, 1 to 3 parts were irradiated each time. The...
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Inventor 徐司雨
Owner 徐司雨