Method for performing quality control on ultrasonic section image of fetus during middle and late pregnancy

Abstract

The invention discloses a method for performing quality control on an ultrasonic section image of a fetus during middle and late pregnancy. The method comprises the following steps of: acquiring a section image of a certain part of a fetus, preprocessing the section image of the certain part of the fetus to obtain a pre-processed section image of the certain part of the fetus, inputting the pre-processed section image of the certain part of the fetus into a trained depth convolutional neural network to obtain the category of the section image of the certain part of the fetus, and key structures and position coordinates contained in the section image of the certain part of the fetus, directly outputting a 'standard section of the certain part' result if the category of the section image ofthe certain part of the fetus is standard, and directly outputting a 'non-standard section of the certain part' result and pointing out the reason of the nonstandard section if the category of the section image of the certain part of the fetus is nonstandard. The method generates a score and a quality evaluation report for the section image of the certain part of the fetus. The method can solve the technical problem that the prior method is difficult to be widely popularized and applied in actual clinic.

Description

technical field [0001] The invention belongs to the technical field of prenatal ultrasonic examination, and more specifically relates to a method for quality control of ultrasonic section images of fetuses in the middle and late pregnancy. Background technique [0002] At present, fetal ultrasonography in the second and third trimesters is the preferred examination method for prenatal diagnosis and screening of defective infants. However, due to the uncertainty of fetal position, maternal body mass index, doctor's operation techniques, ultrasound physical characteristics, fetal movement and other factors, there are often great differences in the clarity and standardization of fetal ultrasound images obtained by ultrasound examination. Greatly affected the accuracy of the test results. Therefore, it is necessary to carry out quality control (Quality Control, QC for short) on fetal ultrasound section images. [0003] The existing method for quality control of fetal ultrasoni...

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Problems solved by technology

[0005] In view of the above deficiencies or improvement needs of the prior art, the present invention provides a method for quality control of ultrasound section images of fetuses in the middle and late pregnancy. Material resources lead to technical problems that are difficult to be widely applied in actual clinical practice, and the technical problems of inconsistency in quality control results caused by different doctors' perceptions of whether fetal ultrasound section images are standard or not. The present invention can assist ultrasound doctors Nearly 40 more standard and higher-quality fetal sections were selected (including thalamic horizontal section, lateral ventricle horizontal section, cerebellar horizontal section, nasolabial coronal section, double eyeball horizontal section, facial median sagittal section, Four-chamber heart view, left ventricular outflow tract view, right ventricular outflow tract view, three-vessel view, three-vessel tracheal view, diaphragm coronal view, diaphragm sag

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