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Detection method and system for position of fetal nape transparent object with combination of medical statistical information

A technology of transparent objects on the back of the neck and statistical information, which is applied in the fields of image processing and image recognition, can solve the problem of many false detections, and achieves the effects of eliminating false detections, reducing judgment errors, and improving judgment accuracy.

Active Publication Date: 2019-07-26
珠海艾博罗生物技术股份有限公司
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AI Technical Summary

Problems solved by technology

The NT area shows local bright parallel line segments on the ultrasound image, and the characteristics of the ultrasound image will have many similar areas, directly using the commonly used target detection method, resulting in many false detections

Method used

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  • Detection method and system for position of fetal nape transparent object with combination of medical statistical information
  • Detection method and system for position of fetal nape transparent object with combination of medical statistical information
  • Detection method and system for position of fetal nape transparent object with combination of medical statistical information

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Experimental program
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Embodiment 1

[0124] Model establishment: From January 2013 to January 2016, 3500 first-trimester ultrasound images stored in the Obstetrics and Gynecology Ultrasound Workstation of Sun Yat-sen Memorial Hospital of Sun Yat-sen University were collected. Eligible images were screened out, and the image criteria for inclusion in the study: the fetal head was fully displayed, and the head and thorax accounted for 70% to 85% of the entire graphics area; 130°~160°; the nose tip area of ​​the head should be the largest highlighted area in the whole image.

[0125]After manual screening of 1,500 images that meet the measurement conditions, obtain the pixel distance and actual distance conversion parameters of the ultrasound image, and mark the head area and NT area; ①Get the average offset value of the head area and NT area; ②Use the Adaboost algorithm And use HOG feature training to obtain head region detector; ③Adaboost algorithm and use HOG feature training to obtain NT region detector.

[012...

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Abstract

The invention discloses a detection method and system for a position of a fetal nape transparent object with combination of medical statistical information. The method comprises the realization process: establishing a standard image database, to obtain the average offset value of a head area and a fetal nape transparent object thickness (NT) area; inputting an ultrasound image to obtain conversionparameters of the pixel distance and the actual d distance of the ultrasound image; determining the head area; and through the determined head area, and the average offset value between the head areaand the NT area, determining the NT area, namely, the position of the fetal nape transparent object. The position of the head area is determined firstly, the NT area is determined by the average offset value of the head area and the NT area, and the overall accuracy and stability of the detection method are improved by combining the standard or prior knowledge of the NT ultrasound image.

Description

technical field [0001] The invention belongs to the field of image processing and image recognition, and relates to a detection technology for a specific target in an ultrasonic image, in particular to a method and system for detecting the position of a transparent object on the nape of a fetus combined with medical statistical information. Background technique [0002] Birth defects such as congenital deformities, mental retardation, and metabolic diseases are the main causes of perinatal and infant deaths. At present, there are about 800,000 to 1.2 million babies with birth defects in my country every year, accounting for about 4 to 6% of the total number of births in the year. Seriously affect the quality of our country's population, but also caused a huge burden on society and families. In view of the fact that there is no cure for such diseases in medicine at present, prenatal screening is the only effective means to reduce the birth rate of defective children. Therefor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/08
CPCA61B8/0866A61B8/5223
Inventor 郑乐丁红张新玲张永刘建平陈良旭王博源郑末晶
Owner 珠海艾博罗生物技术股份有限公司
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