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Method and device for reducing artifacts in image in real time

An image-in-image technology, applied in the field of image processing, can solve problems such as limiting the scope and population of diseases treated by the HIFU treatment system, the inability to treat tumors, and increasing the risk of HIFU treatment.

Active Publication Date: 2013-05-29
CHONGQING HAIFU MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. Artifacts prevent the anatomical information of biological tissues from being accurately reflected on the image, which increases the possible risks during HIFU treatment and correspondingly increases the experience requirements for operators during HIFU treatment;
[0007] 2. The appearance of artifacts makes some tumors with too serious artifacts unable to be treated, thus limiting the range of diseases and populations treated by the ultrasound-guided HIFU treatment system;
[0008] 3. At present, gray enhancement is generally used to judge and treat injuries, and the existence of artifacts may affect the operator's observation of tissue damage in the treatment area in the image;
[0009] 4. The artifact problem reduces the performance and safety factor of the overall HIFU treatment system

Method used

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  • Method and device for reducing artifacts in image in real time
  • Method and device for reducing artifacts in image in real time

Examples

Experimental program
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Embodiment 1

[0067] In this embodiment, the method for reducing artifacts in an image in real time includes:

[0068] 1) Acquisition of reference images:

[0069] Move the ultrasonic probe to a position suitable for treatment and collect images of the current lesion. The treatment position means that when the ultrasonic probe is at this position, the operator can observe the ultrasonic image of the area to be treated in real time, and requires the treatment head to focus In the treatment area, record the spatial position of the ultrasonic probe at the treatment position at the same time, first judge whether there are many artifacts in the image of the lesion collected by the ultrasonic probe at the treatment position, if there are many artifacts, then according to the ultrasound In the image collected by the probe, the position of the skin line (the surface of the human skin appears as a curve on the section plane of the ultrasound image, and the curve is the skin line) moves the ultrasoun...

Embodiment 2

[0128] According to the patient's lesion being affected by respiration and / or heartbeat, when the lesion is greatly affected by heartbeat, the one physiological signal cycle is one heartbeat signal cycle. In this embodiment, the patient's lesions are greatly affected by the heartbeat. Since the frequency of the human body's heartbeat is the same as the pulse, the pulse cycle can also be equivalent to the heartbeat cycle. Therefore, several groups of image sequences of several continuous pulse signal cycles are collected. One is used as a reference image sequence. Such as image 3 As shown, the specific steps of the method for reducing artifacts in an image in real time are as follows:

[0129] s201. Move the ultrasound probe to the treatment position and collect images of the current lesion, and record the spatial position of the ultrasound probe at this time;

[0130] s202. Judging whether there are many artifacts in the treatment image collected by the current ultrasonic p...

Embodiment 3

[0144] According to the influence of respiration and / or heartbeat on the focus of the patient, when the focus is affected by respiration and heartbeat at the same time, and the degree of influence is relatively large, the time between the respiration signal period and the heartbeat signal period is used for the one physiological signal period. longer period. In this embodiment, the patient's lesions are affected by breathing and heartbeat at the same time, and the degree of influence is relatively large. Since the time of a breathing signal cycle is longer than that of a heartbeat signal cycle, a breathing signal cycle is used as a physiological signal cycle. , that is, to collect several groups of image sequences of several consecutive respiratory signal periods, and select one of them as a reference image sequence.

[0145] The method for reducing artifacts in images in real time and the device for reducing artifacts in images in real time proposed in this embodiment are the...

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Abstract

The invention provides a method for reducing artifacts in an image in real time. The method includes the following steps: collecting a reference image: moving an ultrasonic probe located on a treatment position to a position where the reference image can be obtained, collecting an image of a nidus on the reference image position, and using the collected image of the nidus as the reference image, wherein the reference position is one position which enables a portion of the image collected by the ultrasonic probe, which is corresponding to a treatment target section, to have few artifacts or no artifact; collecting a treatment image: moving the ultrasonic probe from the reference position back to the treatment position, and collecting a current treatment image of the nidus; and registering and fusing images: registering and fusing the collected treatment image and the reference image, and outputting an image after fusion which is an actual treatment image. Correspondingly, the invention provides a device for reducing the artifacts in the image in real time. The method and the device for reducing the artifacts in the image in real time can improve location accuracy of the ultrasonic probe to the treatment target section, and accordingly improve treatment efficiency and treatment effects of an operation guided by ultrasound.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a method for reducing artifacts in images in real time and a device for reducing artifacts in images in real time. Background technique [0002] High Intensity Focused Ultrasound (HIFU) technology is a non-invasive treatment method, which is currently mainly used in the treatment of breast cancer, solid benign and malignant tumors in the abdominal cavity and pelvic cavity. The treatment principle of HIFU technology is to use high-intensity ultrasound focused on biological tissue to make the temperature of the tissue within the focal area reach 60 degrees Celsius or more in an instant, causing coagulation necrosis in the tissue within the focal area instantaneously, and at the same time, the tissue outside the focal area has no effect. significant damage. Ultrasound has become the monitoring method in about 90% of HIFU treatment systems on the market because ...

Claims

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Application Information

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IPC IPC(8): G06T5/50A61B8/00A61N7/02
Inventor 王华文银刚
Owner CHONGQING HAIFU MEDICAL TECH CO LTD
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