Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method for calculating fetal heart rate in the first trimester of pregnancy based on upper-color blood flow diagram in b-ultrasound detection

A technology of fetal heart rate and B-ultrasound, applied in the field of image processing, can solve the problems of different results, lack of standardization and repeatability, human error, etc., and achieve the effect of simple operation

Active Publication Date: 2021-08-31
HUNAN ZIXING INTELLIGENT MEDICAL TECH CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this process, the start of the two cycles is manually selected by the operating doctor or nurse, so a large degree of human error will occur
Moreover, each selection is random, and the results obtained by different operators for the same waveform are also different.
This operation method lacks standardization and repeatability, has large human errors, and requires a high level of experience and technical level of operators.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for calculating fetal heart rate in the first trimester of pregnancy based on upper-color blood flow diagram in b-ultrasound detection
  • A method for calculating fetal heart rate in the first trimester of pregnancy based on upper-color blood flow diagram in b-ultrasound detection
  • A method for calculating fetal heart rate in the first trimester of pregnancy based on upper-color blood flow diagram in b-ultrasound detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] Flow process of the present invention is attached figure 1 As shown, the data processing is realized through the following five parts:

[0034] 1. Convert the video file to a picture sequence and segment the gestational sac

[0035] Since the output file of the B-ultrasound machine is a video in .avi format, firstly, the fetal heart area is enlarged and part of the continuous video colored with the blood flow map is converted into a continuous picture sequence (attached figure 2 ). Since in most cases, the fetal heart rate on the B-ultrasound chart is displayed in the middle of the gestational sac, we divided the gestational sac (see attached image 3 ) to narrow your search.

[0036] 2. Accurately extract the coordinates and RGB value information of the pixels in the gestational sac

[0037] Because the segmented gestational sac is a black-and-white binary image, the pixel coordinates of non-white (gray value not equal to 255) in the image are extracted according ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention proposes a method for accurately determining the fetal heart rate according to the change of the fetal heart blood flow in the B-ultrasonic examination process. The method adopts a series of data processing methods to track and calculate the fetal heart rate of the embryo in the first trimester on the B-ultrasound picture showing the direction of blood flow. In detail, the invention has five main steps: read the original image and segment the gestational sac, extract the coordinates and RGB values ​​of the pixels in the gestational sac, extract the pixel data representing the fetal heart according to the RGB values ​​and calculate the area of ​​the fetal heart, draw Draw the fetal heart area change curve of the entire sequence of pictures and calculate the fetal heart rate. The accuracy of the fetal heart rate calculation results can be as high as 96.5% compared with the doctor's measurement results. The method has the advantages of standardization, repeatability, simple operation, high accuracy and stability, and low requirements for operators.

Description

technical field [0001] The invention relates to a method for calculating fetal heart rate in the first trimester of pregnancy according to the change law of the colored fetal heart blood flow map in the B-ultrasound detection process, which belongs to the field of image processing. [0002] technical background: [0003] Fetal heart rate monitoring has always been an important means of judging the status of the fetus during pregnancy and childbirth, and the fetal heart rate of the fetus is used as an important indicator to judge whether the fetus is developing normally. [0004] However, doctors usually calculate the fetal heart rate by selecting two cycles of specific characteristics on the monitored waveform diagram during the B-ultrasound detection process. In this process, the start of the two cycles is manually selected by the operating doctor or nurse, so a large degree of human error will occur. Moreover, each selection is random, and the results obtained by different...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/02G06T7/00
CPCA61B8/02A61B8/0866A61B8/5223G06T7/0012G06T2207/10016G06T2207/30044G06T2207/30048G06T2207/30101
Inventor 张娟刘丽珏李喜红欧阳妍吴青青李仪林戈穆阳
Owner HUNAN ZIXING INTELLIGENT MEDICAL TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com