GB2563373A - Apparatus for extracting time-frequency features of ultrasound doppler fetal heart sound signal - Google Patents

Apparatus for extracting time-frequency features of ultrasound doppler fetal heart sound signal Download PDF

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Publication number
GB2563373A
GB2563373A GB1618849.2A GB201618849A GB2563373A GB 2563373 A GB2563373 A GB 2563373A GB 201618849 A GB201618849 A GB 201618849A GB 2563373 A GB2563373 A GB 2563373A
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United Kingdom
Prior art keywords
fetal heart
heart sound
ultrasound
sound signal
frequency features
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB1618849.2A
Inventor
Xie Kan
He Zhaoshui
Xie Shengli
Cal Kun
Zhang Haochuan
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Guangdong University of Technology
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Guangdong University of Technology
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Priority to GB1618849.2A priority Critical patent/GB2563373A/en
Publication of GB2563373A publication Critical patent/GB2563373A/en
Withdrawn legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/02—Measuring pulse or heart rate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Detecting organic movements or changes, e.g. tumours, cysts, swellings
    • A61B8/0866—Detecting organic movements or changes, e.g. tumours, cysts, swellings involving foetal diagnosis; pre-natal or peri-natal diagnosis of the baby
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/48—Diagnostic techniques
    • A61B8/488—Diagnostic techniques involving Doppler signals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/52—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/5215—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data
    • A61B8/5223—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data for extracting a diagnostic or physiological parameter from medical diagnostic data
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H50/00—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
    • G16H50/30—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for calculating health indices; for individual health risk assessment

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Public Health (AREA)
  • Medical Informatics (AREA)
  • General Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Molecular Biology (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Physics & Mathematics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Cardiology (AREA)
  • Data Mining & Analysis (AREA)
  • Databases & Information Systems (AREA)
  • Epidemiology (AREA)
  • Primary Health Care (AREA)
  • Gynecology & Obstetrics (AREA)
  • Pregnancy & Childbirth (AREA)
  • Physiology (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

An apparatus comprises an ultrasound fetal heart probe, amplifier, CPU, display screen, all connected to a power source. Time-frequency features are extracted. A normal heart sound signal and an abnormal heart signal are similar in the time domain and differences can be difficult to observe. The display may output the time-frequency features. A doctor may be assisted in clinical monitoring and disease diagnosis of a fetus in uterus.

Description

APPARATUS FOR EXTRACTING TIME-FREQUENCY FEATURES OF ULTRASOUND DOPPLER FETAL HEART SOUND SIGNAL
TECHNICAL FIELD
The present disclosure relates to an apparatus for extracting time-frequency features of an ultrasound Doppler fetal heart sound signal, which is an improvement to an apparatus for extracting time-frequency features of an ultrasound Doppler fetal heart sound signal.
BACKGROUND
Currently available ultrasound Doppler fetal heart monitors, as devices for monitoring fetal hearts, can only detect a heart rate of a fetus, or simply plot a fetal heart sound curve typically. However, a normal heart sound signal and an abnormal heart sound signal are very similar to each other in time domain and differences between them can hardly be observed. Such differences can be easily identified by means of feature extraction in time-frequency domain. Hence, the currently available fetal heart monitors need to be further improved, so as to have greater effect clinically.
SUMMARY
In view of the above problem, it is an object of the present disclosure to provide an apparatus for extracting time-frequency features of an ultrasound Doppler fetal heart sound signal, capable of obtaining time-frequency features of a fetal heart sound. With the present disclosure, it is possible to extract time-frequency features of a fetal heart sound signal accurately, so as to better assist doctors in clinical monitoring and disease diagnosis of a fetus in a uterus, without making any trauma. The present disclosure has a simple structure and is convenient to use.
The solution according to the present disclosure is as follows. According to the present disclosure, an apparatus for extracting time-frequency features of an ultrasound Doppler fetal heart sound signal is provided. The apparatus comprises an ultrasound fetal heart probe, a collector and amplifier module, a CPU, a display screen and a power source. The power source is connected to each of the collector and amplifier module, the CPU and the display screen, a signal output terminal of the ultrasound fetal heart probe is connected to a signal input terminal of the collector and amplifier module, a signal output terminal of the collector and amplifier module is connected to a signal input terminal of the CPU, and a signal output terminal of the CPU is connected to the display screen.
According to the present disclosure, with the structure including an ultrasound fetal heart probe, a collector and amplifier module and a CPU, the ultrasound fetal heart probe transfers, via a data line, a detected fetal heart sound signal to the collector and amplifier module for signal amplification. The CPU processes the signal to obtain time-frequency features associated with the heart sound signal. In this way, it is possible to assist a doctor in comparing the original fetal heart sound signal with the obtained time-frequency feature signal, so as to make better clinical predictions and decisions. The present disclosure provides an apparatus for extracting time-frequency features of an ultrasound Doppler fetal heart sound signal, which has a sophisticated design and a good performance and is convenient to use.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a schematic diagram showing a principle of the present disclosure.
DETAILED DESCRIPTION OF THE EMBODIMENTS
The principle of the present disclosure is shown in Fig. 1. An apparatus for extracting time-frequency features of an ultrasound Doppler fetal heart sound signal includes an ultrasound fetal heart probe 1, a collector and amplifier module 2, a CPU 3, a display screen 4 and a power source 5. The power source 5 is connected to each of the collector and amplifier module 2, the CPU 3 and the display screen 4, a signal output terminal of the ultrasound fetal heart probe 1 is connected to a signal input terminal of the collector and amplifier module 2, a signal output terminal of the collector and amplifier module 2 is connected to a signal input terminal of the CPU 3, and a signal output terminal of the CPU 3 is connected to the display screen 4.
In this embodiment, the ultrasound fetal heart probe 1 is connected to the collector and amplifier module 2 via a data line. The ultrasound fetal heart probe 1 5 is an ultrasound Doppler fetal heart sound probe.
The operation principle of the present disclosure is as follows. The ultrasound Doppler fetal heart sound probe 1 transfers, via the data line, a detected fetal heart sound signal to the collector and amplifier module 2 for signal amplification. The CPU 3 processes the signal to obtain time-frequency features associated with the io heart sound signal. The display screen 4 outputs the obtained time-frequency feature signal.
The extraction apparatus according to the present disclosure can extract the time-frequency feature components of the fetal heart sound signal accurately, such that an abnormal heart sound signal that cannot be identified in the time domain 15 can be detected. It is possible to assist doctors in clinical monitoring and disease diagnosis of a fetus in a uterus, without making any trauma.

Claims (3)

What is claimed is:
1. An apparatus for extracting time-frequency features of an ultrasound Doppler fetal heart sound signal, comprising an ultrasound fetal heart probe (1), a
5 collector and amplifier module (2), a CPU (3), a display screen (4) and a power source (5), wherein the power source (5) is connected to each of the collector and amplifier module (2), the CPU (3) and the display screen (4), a signal output terminal of the ultrasound fetal heart probe (1) is connected to a signal input terminal of the collector and amplifier module (2), a signal output terminal of the io collector and amplifier module (2) is connected to a signal input terminal of the
CPU (3), and a signal output terminal of the CPU (3) is connected to the display screen (4).
2. The apparatus of claim 1, wherein the ultrasound fetal heart probe (1) is 15 connected to the collector and amplifier module (2) via a data line.
3. The apparatus of claim 1, wherein the ultrasound fetal heart probe (1) is an ultrasound Doppler fetal heart sound probe.
GB1618849.2A 2016-11-08 2016-11-08 Apparatus for extracting time-frequency features of ultrasound doppler fetal heart sound signal Withdrawn GB2563373A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1618849.2A GB2563373A (en) 2016-11-08 2016-11-08 Apparatus for extracting time-frequency features of ultrasound doppler fetal heart sound signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1618849.2A GB2563373A (en) 2016-11-08 2016-11-08 Apparatus for extracting time-frequency features of ultrasound doppler fetal heart sound signal

Publications (1)

Publication Number Publication Date
GB2563373A true GB2563373A (en) 2018-12-19

Family

ID=64397700

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1618849.2A Withdrawn GB2563373A (en) 2016-11-08 2016-11-08 Apparatus for extracting time-frequency features of ultrasound doppler fetal heart sound signal

Country Status (1)

Country Link
GB (1) GB2563373A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102160787B (en) * 2011-05-31 2013-06-26 广东工业大学 Time-frequency-transformation-based blind extraction method of fetal electrocardiography
CN204246162U (en) * 2014-12-01 2015-04-08 广东工业大学 A kind of ultrasonic doppler fetal heart sound signal time-frequency characteristics extraction element
CN105787946A (en) * 2016-03-17 2016-07-20 广东工业大学 Nonnegative blind source separation fetal heart sound analysis method and device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102160787B (en) * 2011-05-31 2013-06-26 广东工业大学 Time-frequency-transformation-based blind extraction method of fetal electrocardiography
CN204246162U (en) * 2014-12-01 2015-04-08 广东工业大学 A kind of ultrasonic doppler fetal heart sound signal time-frequency characteristics extraction element
CN105787946A (en) * 2016-03-17 2016-07-20 广东工业大学 Nonnegative blind source separation fetal heart sound analysis method and device

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