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Measurement method for fetus ultrasound image

An ultrasound image and measurement method technology, which is applied in the field of fetal ultrasound image measurement, can solve the problems of low accuracy, lack of clinical application, and long measurement time, and achieves the effects of improving detection speed and accuracy and improving robustness.

Active Publication Date: 2013-08-14
EDAN INSTR
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the defects of long time, low precision and lack of clinical application of the measurement method of fetal ultrasound image in the prior art, and provide a fast and accurate measurement method of fetal ultrasound image

Method used

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  • Measurement method for fetus ultrasound image
  • Measurement method for fetus ultrasound image
  • Measurement method for fetus ultrasound image

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Experimental program
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Embodiment

[0101] Experimental conditions: the experiment provided in this embodiment has a total of 675 sets of ultrasound head circumference images of fetuses. The data were provided by XXX Maternal and Child Health Hospital, and the ultrasonic diagnostic system was collected from Siemens Sequoia512 ultrasonic instrument. The fetal gestational age was distributed between 17 weeks and 38 weeks. Among them, 500 sets of fetal ultrasound images were used for training the Adaboost classifier of fetal head circumference, and the remaining 175 sets were used for measurement of fetal ultrasound images.

[0102] Automatic detection of regions of interest around the head circumference: The training samples consist of 500 training positive samples and 1200 randomly extracted negative samples near the positive samples. All samples are normalized to pixel size. We performed detection on 175 ultrasound images of head circumference. Comparing the experimental results with the clinician's standard ...

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Abstract

The invention provides a measurement method for a fetus ultrasound image. The measurement method includes acquiring a fetus ultrasound image; establishing an Adaboost classifier of a head circumference or abdominal circumference of the fetus; performing rectangle scanning to the head circumference or abdominal circumference of the fetus according to a sliding-window detecting method, and acquiring a rectangle subimage of the head circumference or abdominal circumference; classifying the rectangle subimage based on the Adaboost classifier, and acquiring interested area of the head circumference or abdominal circumference; extracting edge features of the head circumference or abdominal circumference of the interested area; performing image match to the edge features, and acquiring an ellipse of the head circumference or abdominal circumference; and calculating the length of the ellipse of the head circumference or abdominal circumference. In the process of performing the rectangle scanning to the head circumference or abdominal circumference by adopting the sliding-window detecting method to acquire the rectangle subimage of the head circumference or abdominal circumference, Prior knowledge of the fetus and scanning depth and pixel number information during the clinical test are added, so that detecting speed and accuracy of the interested area of the head circumference or abdominal circumference are improved.

Description

【Technical field】 [0001] The invention relates to a method for measuring medical ultrasonic images, in particular to a method for measuring fetal ultrasonic images. 【Background technique】 [0002] Due to the advantages of non-invasive, cheap and safe, the B-mode ultrasonic diagnostic system is more and more used in medical diagnosis, especially in obstetrical examinations; doctors can use B-ultrasound to detect various growths during fetal development. Parameter indicators to achieve the purpose of eugenics; in the ultrasound image of obstetric examination, the fetal head circumference or abdominal circumference is clearly displayed and easy to measure, and the fetal weight or gestational age of the fetus can be estimated by measuring the fetal head circumference or abdominal circumference; therefore , Fetal head circumference and abdominal circumference are important parameters to measure fetal growth and development. [0003] At present, clinicians mainly manually determi...

Claims

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Application Information

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IPC IPC(8): A61B6/00
Inventor 倪东李胜利杨勇汪天富陈思平
Owner EDAN INSTR
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