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CN-121971166-A - Multi-cyst kidney radio frequency ablation operation treatment planning system based on ultrasonic image

CN121971166ACN 121971166 ACN121971166 ACN 121971166ACN-121971166-A

Abstract

The invention relates to the technical field of machine vision, in particular to a multi-cyst kidney radio frequency ablation operation treatment planning system based on ultrasonic images, which is used for analyzing the distribution condition of time sequence hue angle values of pixel points in all continuous frame ultrasonic images through a hue fluctuation intensity acquisition module to obtain hue fluctuation intensity of the pixel points; the device comprises a regional division module, a covered blood vessel region identification module, a puncture path planning module and a puncture path planning module, wherein the regional division module is used for dividing a cyst region, a covered blood vessel region and the covered blood vessel region of an ultrasonic image based on hue fluctuation intensity, the covered blood vessel region is identified according to hue fluctuation intensity of pixel points in the cyst region and the covered blood vessel region and the number of pixel points in the blood vessel region, and the puncture path planning module is used for planning a puncture path. The system of the invention judges the confidence that each pixel point is a blood vessel region between the multi-frame ultrasonic images, thereby improving the recognition accuracy of the blood vessel region, especially the blood vessel region interfered by the artifact, and further improving the reliability of puncture path planning.

Inventors

  • ZHAN XIAOJUN

Assignees

  • 西安市第一医院

Dates

Publication Date
20260505
Application Date
20260317

Claims (10)

  1. 1. A multi-balloon renal radio frequency ablation procedure treatment planning system based on ultrasound images, the system comprising: the image acquisition module is used for respectively acquiring continuous multi-frame ultrasonic images at multiple angles and determining a target area; The hue fluctuation intensity acquisition module is used for analyzing the distribution condition of time sequence hue angle values of the pixel points in all the continuous frame ultrasonic images aiming at each pixel point in a target area in any frame ultrasonic image acquired at each angle to obtain hue fluctuation intensity of the pixel points; The region dividing module is used for dividing a cyst region, a coverage region and a blood vessel region in a target region in any frame of ultrasonic image acquired at each angle based on the hue fluctuation intensity; the covered blood vessel identification module is used for identifying the cyst area and the covered blood vessel area in the coverage area according to hue fluctuation intensity of the pixel points in the cyst area and the coverage area and according to the number of the pixel points in the blood vessel area; And the puncture path planning module is used for planning a puncture path according to the cyst area, the blood vessel area and the covered blood vessel area.
  2. 2. The ultrasound image-based multi-balloon renal radio frequency ablation procedure treatment planning system of claim 1, wherein the hue fluctuation intensity acquisition module comprises: The pixel point tracking unit is used for tracking the corresponding position of each pixel point in the continuous multi-frame ultrasonic image by adopting an optical flow method aiming at each pixel point in a target area in any frame of ultrasonic image acquired at each angle to obtain the corresponding pixel point of the pixel point in each frame of ultrasonic image; The hue angle value acquisition unit is used for acquiring hue angle values of the pixel points and the corresponding pixel points in any frame of ultrasonic image to obtain a hue time sequence of the pixel points; A hue deviation analysis unit for analyzing the hue deviation degree of the pixel point in each frame of ultrasonic image based on the hue time sequence; And the hue fluctuation intensity acquisition unit is used for analyzing the discrete degree of the pixel point in all the continuous frame ultrasonic images according to the hue deviation degree to obtain the hue fluctuation intensity of the pixel point.
  3. 3. The ultrasound image-based multi-balloon renal radio frequency ablation procedure treatment planning system of claim 2, wherein the hue deviation analysis unit is configured to: Calculating the average value of all hue angle values in the hue time sequence through unit vector conversion to obtain the average hue angle value of the pixel point; and calculating the absolute value of the difference between the hue angle value of the pixel point in each frame of ultrasonic image and the average hue angle value, and calculating 360 the difference between the absolute value of the difference and the average hue angle value to obtain the hue deviation degree of the pixel point in each frame of ultrasonic image.
  4. 4. The ultrasound image-based multi-balloon renal radio frequency ablation procedure treatment planning system of claim 1, wherein the region segmentation module comprises: The cluster analysis unit is used for carrying out cluster analysis on hue fluctuation intensities corresponding to all pixel points in a target area in any frame of ultrasonic image acquired at each angle to obtain three clusters and determining a segmentation threshold; And the region dividing unit is used for dividing the cyst region, the coverage region and the blood vessel region in the target region in any frame of ultrasonic image according to the dividing threshold value.
  5. 5. The ultrasonic image-based multi-capsule renal radio frequency ablation procedure treatment planning system according to claim 4, wherein the region division module further comprises an image screening unit, configured to obtain hue fluctuation intensity histograms corresponding to all pixel points in a target region in an ultrasonic image, mark an ultrasonic image with a double peak or multiple peaks as the target ultrasonic image, and further perform cluster analysis and region division on the target ultrasonic image.
  6. 6. The ultrasound image-based multi-balloon renal radio frequency ablation procedure treatment planning system of claim 4, wherein the cluster analysis unit is configured to: aiming at all pixel points in a target area in any frame of ultrasonic image acquired at each angle, using a K-means algorithm according to the hue fluctuation intensity, and enabling K to be 3, and performing cluster analysis to obtain three clusters; Obtaining central values of three clusters, and sequencing from small to large to obtain a first central value, a second central value and a third central value; An average value of the first center value and the second center value is calculated as a lower limit division threshold value, and an average value of the second center value and the third center value is calculated as an upper limit division threshold value.
  7. 7. The ultrasound image-based multi-balloon renal radio frequency ablation procedure treatment planning system of claim 6, wherein the region segmentation unit is configured to: Creating a matrix of uniform size with the ultrasound image, the matrix being at coordinates The numerical value of the position is the hue fluctuation intensity of the pixel point at the corresponding coordinate in the ultrasonic image, and the numerical value of the corresponding matrix coordinate in the non-target area in the ultrasonic image is defined as-1; And carrying out threshold segmentation on the matrix, wherein the area with the matrix coordinate value larger than the upper limit segmentation threshold value is a cyst area, the area with the matrix coordinate value larger than or equal to the lower limit segmentation threshold value and smaller than or equal to the upper limit segmentation threshold value is a coverage area, and the area with the matrix coordinate value smaller than the lower limit segmentation threshold value and not equal to-1 is a blood vessel area.
  8. 8. The ultrasound image-based multi-balloon renal radio frequency ablation procedure treatment planning system of claim 1, wherein the overlay vessel identification module comprises: the edge detection unit is used for carrying out edge detection on the cyst area, the coverage area and the blood vessel area by using a Canny algorithm to obtain an edge chain code table; The concerned edge identification unit is used for judging whether the blood vessel region is overlapped with the coverage region or the cyst region or not based on the edge chain table, and if so, marking the overlapped edge pixel point as a concerned edge; a distribution weight obtaining unit, configured to make a straight line in a normal direction through each pixel point on the attention edge, and count the number of pixel points in the vascular area of the straight line, so as to obtain a distribution weight of each pixel point on the attention edge; The confidence determining unit is used for obtaining the distance weight of each pixel point of the straight line in the cyst area or the coverage area, and combining the hue fluctuation intensity of the pixel point and the distribution weight of the pixel points of the straight line on the attention edge to obtain the confidence of each pixel point of the straight line in the cyst area or the coverage area; And the covered blood vessel identification unit is used for identifying the cyst area and the covered blood vessel area in the coverage area according to the confidence.
  9. 9. The ultrasound image-based multi-balloon renal radio frequency ablation procedure treatment planning system of claim 8, wherein obtaining the distance weights for the pixel points comprises: For each pixel point of the straight line in the cyst area or the coverage area, acquiring the pixel distance from the pixel point to the concerned edge and the maximum pixel distance from all the pixel points to the concerned edge; and calculating the ratio between the pixel distance and the maximum pixel distance to obtain the distance weight of the pixel point.
  10. 10. The ultrasound image-based multi-balloon renal radio frequency ablation procedure treatment planning system of claim 8, wherein the overlay vessel identification unit is configured to: presetting a confidence threshold; Judging whether the confidence coefficient is larger than the confidence coefficient threshold value or not; if yes, marking the pixel points as covered blood vessel pixel points; And traversing all straight lines corresponding to all pixel points on the concerned edge, marking all covered blood vessel pixel points, and obtaining the cyst area or one complete area on one side of the covered area of the concerned edge as the covered blood vessel area in the cyst area or the covered area.

Description

Multi-cyst kidney radio frequency ablation operation treatment planning system based on ultrasonic image Technical Field The invention relates to the technical field of machine vision, in particular to a multi-cyst kidney radio frequency ablation operation treatment planning system based on an ultrasonic image. Background Polycystic kidney is a hereditary chronic kidney disease, and the double kidneys of patients can present with many fluid cysts of unequal sizes. Radio frequency ablation is a treatment method for destroying abnormal tissues or cells by using heat energy generated by high-frequency current, and is widely applied to treatment of diseases such as tumors, arrhythmia and the like. However, there is a great limitation in treating polycystic kidney by using the radio frequency ablation technology, because the number of cysts in the polycystic kidney is too large, if all cysts are punctured, the number of the cysts will cause the kidney to open up a thousand holes, so that the radio frequency ablation technology is mainly used for treating the particularly large cysts causing symptoms when the polycystic kidney is treated by using the radio frequency ablation technology. Therefore, when planning a puncture route, it is important to clearly separate the cyst and surrounding blood vessel areas by using ultrasonic equipment in advance, firstly, in order to safely avoid blood vessels and avoid serious complications of large bleeding caused by needle pricking to the blood vessels, and secondly, the ablation needle can accurately enter the target cyst, thereby improving the treatment effect and avoiding injuring innocent normal tissues. The color Doppler ultrasound is used for marking blood according to the flow of liquid, and according to the flow direction of the liquid, two marking colors of red and blue exist in the color Doppler ultrasound image, and the effusion in the cyst can also generate a flowing effect when the heart vibrates, and the effusion in the cyst is a flickering cyst artifact in the color Doppler ultrasound image. Because of decompression of the cyst, the tiny blood vessels lose the original morphological characteristics, and the judgment of the blood vessel area is harder due to the interference of the cyst artifact. Disclosure of Invention In order to solve the technical problems, the invention provides a multi-cyst kidney radio frequency ablation operation treatment planning system based on an ultrasonic image. The multi-cyst kidney radio frequency ablation operation treatment planning system based on the ultrasonic image provided by the embodiment of the application specifically comprises: the image acquisition module is used for respectively acquiring continuous multi-frame ultrasonic images at multiple angles and determining a target area; The hue fluctuation intensity acquisition module is used for analyzing the distribution condition of time sequence hue angle values of the pixel points in all the continuous frame ultrasonic images aiming at each pixel point in a target area in any frame ultrasonic image acquired at each angle to obtain hue fluctuation intensity of the pixel points; The region dividing module is used for dividing a cyst region, a coverage region and a blood vessel region in a target region in any frame of ultrasonic image acquired at each angle based on the hue fluctuation intensity; the covered blood vessel identification module is used for identifying the cyst area and the covered blood vessel area in the coverage area according to hue fluctuation intensity of the pixel points in the cyst area and the coverage area and according to the number of the pixel points in the blood vessel area; And the puncture path planning module is used for planning a puncture path according to the cyst area, the blood vessel area and the covered blood vessel area. In some embodiments of the present invention, the hue fluctuation intensity acquisition module includes: The pixel point tracking unit is used for tracking the corresponding position of each pixel point in the continuous multi-frame ultrasonic image by adopting an optical flow method aiming at each pixel point in a target area in any frame of ultrasonic image acquired at each angle to obtain the corresponding pixel point of the pixel point in each frame of ultrasonic image; The hue angle value acquisition unit is used for acquiring hue angle values of the pixel points and the corresponding pixel points in any frame of ultrasonic image to obtain a hue time sequence of the pixel points; A hue deviation analysis unit for analyzing the hue deviation degree of the pixel point in each frame of ultrasonic image based on the hue time sequence; And the hue fluctuation intensity acquisition unit is used for analyzing the discrete degree of the pixel point in all the continuous frame ultrasonic images according to the hue deviation degree to obtain the hue fluctuation intensity of the pixel point. In some embodiments of the in