CN114903518A - Intelligent scoliosis Cobb angle measurement method based on three-dimensional ultrasound - Google Patents
Intelligent scoliosis Cobb angle measurement method based on three-dimensional ultrasound Download PDFInfo
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Abstract
The invention discloses an intelligent scoliosis Cobb angle measurement method based on three-dimensional ultrasound, which comprises the following steps: s1, acquiring three-dimensional ultrasonic image information of the spine by using a three-dimensional ultrasonic system to form a three-dimensional spine image; s2, inputting the three-dimensional spine image obtained in the step S1 into a computer system, and displaying, processing and analyzing image information through the computer system; s3, the computer system identifies and extracts all spinous processes in the three-dimensional spine image, generates corresponding mark points, and then connects all the mark points to form spinous process connection lines, wherein each spinous process connection line is composed of an upper straight line segment, a circular arc line segment and a lower straight line segment, a tangent line L1 of the circular arc line segment is made at the transition point of the upper straight line segment and the circular arc line segment, a tangent line L2 of the circular arc line segment is made at the transition point of the lower straight line segment and the circular arc line segment, and an included angle alpha formed by the tangent line L1 and the tangent line L2 is a Cobb angle.
Description
Technical Field
The invention belongs to the technical field of scoliosis diagnosis and screening, and particularly relates to an intelligent scoliosis Cobb angle measurement method based on three-dimensional ultrasound.
Background
Adolescent Idiopathic Scoliosis (AIS) is a disabling and lethal deformity, the incidence rate of the AIS is reported to be 2-4% in literature, the AIS is better to primary and secondary school students in adolescence, and the AIS is mainly characterized in that the three-dimensional structural abnormality of the spine with the vertebral column lateral convex Cobb angle of more than or equal to 10 degrees on an X-ray plain film. According to the flow regulation data of the Chinese preventive medical society, the number of the Chinese primary and secondary school students with scoliosis is over 500 thousands of people at present, and the number is increased by 30 thousands per year. Therefore, timely screening, accurate evaluation and effective monitoring of adolescent idiopathic scoliosis patients can help to clarify disease conditions and take appropriate treatment measures to prevent disease deterioration, thereby reducing surgical intervention risks.
At present, X-ray is the most common imaging mode for diagnosing scoliosis (scoliosis) and tracking the development state of the scoliosis, but X-ray imaging has radiation damage, and a two-dimensional X-ray image is difficult to comprehensively reflect three-dimensional malformation characteristics. At present, for the measurement of the Cobb angle, after an X-ray image is obtained, after the upper and lower vertebrae of the scoliosis are manually established by an imaging expert, an included angle between the two terminals is taken out by using an angle measuring instrument, but the method causes the patient to be irradiated by X-rays to cause different degrees of injury to the patient, and the scoliosis patient needs to take X-ray films for multiple times in the subsequent treatment process, so the method causes great injury to the teenager patient.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide an intelligent Cobb angle measurement method for scoliosis based on three-dimensional ultrasound.
In order to achieve the above purpose, the invention adopts the following technical scheme:
an intelligent scoliosis Cobb angle measurement method based on three-dimensional ultrasound comprises the following steps:
s1, acquiring three-dimensional ultrasonic image information of the spine by using a three-dimensional ultrasonic system to form a three-dimensional spine image;
s2, inputting the three-dimensional spine image obtained in the step S1 into a computer system, and displaying, processing and analyzing image information through the computer system;
s3, the computer system identifies and extracts all spinous processes in the three-dimensional spine image, generates corresponding mark points, and then connects all the mark points to form spinous process connection lines, wherein each spinous process connection line is composed of an upper straight line segment, a circular arc line segment and a lower straight line segment, a tangent line L1 of the circular arc line segment is made at the transition point of the upper straight line segment and the circular arc line segment, a tangent line L2 of the circular arc line segment is made at the transition point of the lower straight line segment and the circular arc line segment, and an included angle alpha formed by the tangent line L1 and the tangent line L2 is a Cobb angle.
Further, in step S3, if the spinous process connection line is composed of an upper straight line segment, two continuous arc line segments, and a lower straight line segment, the Cobb angles need to be measured for the two arc line segments, that is: the upper and lower circular arc line sections are respectively set as a first circular arc line section and a second circular arc line section, a tangent line L1 of the circular arc line section is made at the transition point of the upper straight line section and the first circular arc line section, a tangent line L2 of the first circular arc line section is made at the transition point of the first circular arc line section and the second circular arc line section, an included angle alpha formed by the tangent line L1 and the tangent line L2 is a Cobb angle of the first circular arc section, a tangent line L3 of the second circular arc line section is made at the transition point of the second circular arc line section and the lower straight line section, and an included angle alpha formed by the tangent line L2 and the tangent line L3 is a Cobb angle of the second circular arc section.
Further, the three-dimensional ultrasonic system is a Doppler ultrasonic diagnostic apparatus.
Furthermore, the computer system is provided with a storage module, a display module, an output report module and a processor, wherein the storage module is used for storing three-dimensional spine image information and Cobb angle data information, the processor is used for analyzing and processing the three-dimensional ultrasonic image information and displaying the three-dimensional ultrasonic image information through the display module, and the output report module is used for outputting the Cobb angle data information processed by the processor in a report form.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. the Cobb angle measurement method of the invention adopts the three-dimensional ultrasonic system to collect the spine three-dimensional information of the patient, and can realize the collection of the spine information only by scanning the back of the patient by using the ultrasonic probe, thus having the advantages of high efficiency and safety;
2. the invention identifies and extracts the spinous processes on the three-dimensional image of the spine and generates a spinous process connecting line, two ends of a bending part on the spinous process connecting line are respectively and correspondingly drawn with tangent lines, and the included angle of the tangent lines is the Cobb angle.
Drawings
FIG. 1 is a schematic diagram of Cobb angle measurement of a single bend in a spinous process line of a human back;
FIG. 2 is a schematic diagram of Cobb angle measurement of double bends on the spinous process line of the back of a human body;
in the figure: a: an upper straight line segment; b: a lower straight line segment; c: a circular arc segment; c1: a first arc segment; c2: a second arc segment; D. u, S: a transition point; l1, L2: cutting a line; l: connecting spinous processes; α, α 1, α 2: the Cobb angle.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the accompanying drawings and embodiments.
An intelligent scoliosis Cobb angle measurement method based on three-dimensional ultrasound comprises the following steps:
s1, acquiring three-dimensional ultrasonic image information of the spine by using a three-dimensional ultrasonic system to form a three-dimensional spine image;
s2, inputting the three-dimensional spine image obtained in the step S1 into a computer system, and displaying, processing and analyzing image information through the computer system;
s3, the computer system identifies and extracts all spinous processes in the three-dimensional spine image, generates corresponding mark points, and then connects all the mark points to form a spinous process connecting line L, as shown in figure 1, the spinous process connecting line L is composed of an upper straight line segment A, an arc line segment C and a lower straight line segment B, a tangent line L1 of the arc line segment is made at a transition point U of the upper straight line segment A and the arc line segment C, a tangent line L2 of the arc line segment is made at a transition point D of the lower straight line segment B and the arc line segment C, and an included angle alpha formed by the tangent line L1 and the tangent line L2 is a Cobb angle.
In step S3, if the spinous process connection line L is composed of the upper straight line segment a, two continuous arc line segments, and the lower straight line segment B, the Cobb angles need to be measured for the two arc line segments, that is: the upper and lower two arc line segments are respectively set as a first arc line segment C1 and a second arc line segment C2, a tangent L1 of the arc line segment is made at a transition point U between the upper straight line segment A and the first arc line segment C1, a tangent L2 of a first arc line segment C1 is made at a transition point D between the first arc line segment C1 and the second arc line segment C2, an included angle alpha 1 formed by the tangent L1 and the tangent L2 is a Cobb angle of the first arc line segment C1, a tangent L3 of the second arc line segment C2 is made at a transition point S between the second arc line segment C2 and the lower straight line segment B, and an included angle alpha 2 formed by the tangent L2 and the tangent L3 is a Cobb angle of the second arc line segment.
In the invention, the three-dimensional ultrasonic system is a Doppler ultrasonic diagnostic apparatus.
The computer system is provided with a storage module, a display module, an output report module and a processor, wherein the storage module is used for storing three-dimensional spine image information and Cobb angle data information, the processor is used for analyzing and processing the three-dimensional ultrasonic image information and displaying the three-dimensional spine image information through the display module, and the output report module is used for outputting the Cobb angle data information processed by the processor in a report form.
In step S3 of the present invention, the connecting line of the spinous processes of the normal person is a straight line when viewed from the back of the human body, but the spinous processes of the patient with lateral curvature of the spine are deviated or rotated due to the lateral curvature of the spine, so that the position of the spinous processes is changed, and at this time, when viewed from the back of the human body, the connecting line of the spinous processes forms a curve (called "single curve"), i.e., a single lumbar curve or a single thoracic curve, or forms two curves (called "double curves") on the connecting line of the spinous processes, i.e., a lumbar curve and a thoracic curve, even more than two curves are formed on the connecting line of the spinous processes, and the curved portion is the position of the Cobb angle of the lateral curvature of the spine to be measured.
Taking a single bend (i.e., a single lumbar bend or a single thoracic bend) as an example, the scoliosis Cobb angle is measured:
as shown in fig. 1, the spinous process connecting line is composed of an upper straight line segment, an arc line segment and a lower straight line segment, a tangent line L1 of the arc line segment is made at the transition point of the upper straight line segment and the arc line segment, a tangent line L2 of the arc line segment is made at the transition point of the lower straight line segment and the arc line segment, and an included angle α formed by the tangent line L1 and the tangent line L2 is a Cobb angle.
For the example of double bends (i.e., thoracic and lumbar bends), the scoliosis Cobb angle is measured as follows:
because the thoracic curve and the lumbar curve are double curves, two arc line sections exist on the spinous process connecting line, the upper arc line section is the thoracic curve, the lower arc line section is the lumbar curve, and the two curves are positions where the Cobb angle of the lateral curve of the spine needs to be measured.
As shown in fig. 2, the spinous process connection line is composed of an upper straight line segment, two continuous arc line segments and a lower straight line segment, and the Cobb angle needs to be measured for the two arc line segments, that is: the upper and lower two arc line sections are respectively set as a first arc line section and a second arc line section, a tangent L1 of the arc line section is made at the transition point of the upper straight line section and the first arc line section, a tangent L2 of the first arc line section is made at the transition point of the first arc line section and the second arc line section, an included angle alpha formed by the tangent L1 and the tangent L2 is a Cobb angle of the first arc section, a tangent L3 of the second arc line section is made at the transition point of the second arc line section and the lower straight line section, and an included angle alpha formed by the tangent L2 and the tangent L3 is a Cobb angle of the second arc section.
In addition, if more than two bends exist on the spinous process connecting line, the measurement method of the Cobb angle is the same as the measurement method of the double bends, and the Cobb angle can be obtained only by drawing the tangent line at the transition point of the adjacent arc line segments.
Claims (4)
1. An intelligent scoliosis Cobb angle measurement method based on three-dimensional ultrasound is characterized by comprising the following steps:
s1, acquiring three-dimensional ultrasonic image information of the spine by using a three-dimensional ultrasonic system to form a three-dimensional spine image;
s2, inputting the three-dimensional spine image obtained in the step S1 into a computer system, and displaying, processing and analyzing the image information through the computer system;
s3, the computer system identifies and extracts all spinous processes in the three-dimensional spine image, generates corresponding mark points, and then connects all the mark points to form spinous process connection lines, wherein each spinous process connection line is composed of an upper straight line segment, a circular arc line segment and a lower straight line segment, a tangent line L1 of the circular arc line segment is made at the transition point of the upper straight line segment and the circular arc line segment, a tangent line L2 of the circular arc line segment is made at the transition point of the lower straight line segment and the circular arc line segment, and an included angle alpha formed by the tangent line L1 and the tangent line L2 is a Cobb angle.
2. The intelligent scoliosis Cobb angle measurement method based on three-dimensional ultrasound as claimed in claim 1, wherein in step S3, if the spinous process connection line is composed of an upper straight line segment, two continuous arc line segments and a lower straight line segment, the Cobb angle needs to be measured for the two arc line segments respectively, that is: the upper and lower circular arc line sections are respectively set as a first circular arc line section and a second circular arc line section, a tangent line L1 of the circular arc line section is made at the transition point of the upper straight line section and the first circular arc line section, a tangent line L2 of the first circular arc line section is made at the transition point of the first circular arc line section and the second circular arc line section, an included angle alpha formed by the tangent line L1 and the tangent line L2 is a Cobb angle of the first circular arc section, a tangent line L3 of the second circular arc line section is made at the transition point of the second circular arc line section and the lower straight line section, and an included angle alpha formed by the tangent line L2 and the tangent line L3 is a Cobb angle of the second circular arc section.
3. The three-dimensional ultrasound based intelligent scoliosis Cobb angle measurement method according to claim 1, wherein the three-dimensional ultrasound system is a doppler ultrasound diagnostic apparatus.
4. The intelligent scoliosis Cobb angle measurement method based on three-dimensional ultrasound as claimed in claim 1, wherein the computer system is configured with a storage module, a display module, an output report module and a processor, the storage module is used for storing three-dimensional spine image information and Cobb angle data information, the processor is used for analyzing and processing the three-dimensional ultrasound image information and displaying the three-dimensional spine image information through the display module, and the output report module is used for outputting the Cobb angle data information processed by the processor in a report form.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210390096.1A CN114903518A (en) | 2022-04-14 | 2022-04-14 | Intelligent scoliosis Cobb angle measurement method based on three-dimensional ultrasound |
| PCT/CN2023/086501 WO2023197924A1 (en) | 2022-04-14 | 2023-04-06 | Three-dimensional-ultrasound-based intelligent scoliosis cobb angle measuring method |
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| CN202210390096.1A CN114903518A (en) | 2022-04-14 | 2022-04-14 | Intelligent scoliosis Cobb angle measurement method based on three-dimensional ultrasound |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023197924A1 (en) * | 2022-04-14 | 2023-10-19 | 深圳市第二人民医院(深圳市转化医学研究院) | Three-dimensional-ultrasound-based intelligent scoliosis cobb angle measuring method |
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| US8057472B2 (en) * | 2007-10-30 | 2011-11-15 | Ellipse Technologies, Inc. | Skeletal manipulation method |
| AU2016404824B2 (en) * | 2016-04-25 | 2019-08-15 | Telefield Medical Imaging Limited | Method and device for measuring spinal column curvature |
| CN106725500A (en) * | 2017-01-17 | 2017-05-31 | 上海脊光医疗科技有限公司 | Functional spinal measurement apparatus |
| CN109223032B (en) * | 2017-07-11 | 2022-02-08 | 中慧医学成像有限公司 | Method for detecting spinal deformation through three-dimensional ultrasonic imaging |
| CN107595387B (en) * | 2017-07-28 | 2020-08-07 | 浙江大学 | Spine image generation system based on ultrasonic rubbing technology and spine operation navigation and positioning system |
| CN112734757B (en) * | 2021-03-29 | 2021-06-25 | 成都成电金盘健康数据技术有限公司 | Spine X-ray image cobb angle measuring method |
| CN113537408A (en) * | 2021-09-08 | 2021-10-22 | 深圳开立生物医疗科技股份有限公司 | Ultrasonic image processing method, device and equipment and storage medium |
| CN114081471B (en) * | 2021-11-11 | 2024-02-09 | 宜宾显微智能科技有限公司 | Scoliosis cobb angle measuring method based on three-dimensional image and multilayer perception |
| CN114903518A (en) * | 2022-04-14 | 2022-08-16 | 深圳市第二人民医院(深圳市转化医学研究院) | Intelligent scoliosis Cobb angle measurement method based on three-dimensional ultrasound |
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| WO2023197924A1 (en) * | 2022-04-14 | 2023-10-19 | 深圳市第二人民医院(深圳市转化医学研究院) | Three-dimensional-ultrasound-based intelligent scoliosis cobb angle measuring method |
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