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CN-122004935-A - Ultrasonic imaging method and ultrasonic imaging system for early pregnancy fetus

CN122004935ACN 122004935 ACN122004935 ACN 122004935ACN-122004935-A

Abstract

An ultrasonic imaging method (200) and an ultrasonic imaging system (100) for a premature fetus, wherein the ultrasonic imaging method (200) for the premature fetus comprises the steps of transmitting ultrasonic waves to the premature fetus, receiving ultrasonic wave echoes to obtain ultrasonic echo signals (S210), obtaining three-dimensional ultrasonic data of the premature fetus based on the ultrasonic echo signals (S220), determining the direction of a target area of the premature fetus according to the three-dimensional ultrasonic data (S230), extracting at least one standard tangent plane corresponding to the target area from the three-dimensional ultrasonic data according to the direction of the target area (S240), and displaying the at least one standard tangent plane (S250). The ultrasonic imaging method (200) and the ultrasonic imaging system (100) of the early-pregnancy fetus automatically extract the standard section of the early-pregnancy fetus according to the three-dimensional ultrasonic data acquired at a time, a doctor is not required to manually extract the standard section one by one, and the efficiency of extracting the standard section and the quality of the extracted standard section are improved.

Inventors

  • LIANG TIANZHU
  • LUO HU
  • ZOU YAOXIAN
  • LIN MUQING
  • CHEN ZHIJIE

Assignees

  • 深圳迈瑞生物医疗电子股份有限公司

Dates

Publication Date
20260512
Application Date
20201116

Claims (18)

  1. 1. A method of ultrasound imaging of a fetus at an early pregnancy, the method comprising: Transmitting ultrasonic waves to the fetus in early pregnancy, and receiving echoes of the ultrasonic waves to obtain ultrasonic echo signals; obtaining three-dimensional ultrasonic data of a fetus at an early pregnancy according to the ultrasonic echo signal; Detecting regions of at least two different early pregnancy target features from the three-dimensional ultrasound data, the early pregnancy target features including at least one of nasal bones, ribs, spinal bones, cerebral sickles, lateral ventricles, thalamus, cranial light rings, choroid plexus, posterior cervical stratum pellucida, umbilical cord inserts, umbilical cord, heart, gastric blebs, liver, kidney, anterior abdominal wall, legs, bladder, skin margin, genital ridge; Determining at least one tangential plane at least partially coincident with each of the regions of the early pregnancy target feature in the at least two different regions of the early pregnancy target feature as at least one standard tangential plane of the early pregnancy fetus; Displaying the at least one standard cut surface.
  2. 2. The method of claim 1, wherein the detecting regions of at least two different early pregnancy target features from the three-dimensional ultrasound data comprises: Obtaining the type of a standard section; at least two different regions of early pregnancy target features corresponding to the type of the standard cut surface are detected from the three-dimensional ultrasound data.
  3. 3. The method according to claim 1, wherein the method further comprises: displaying the regions of the at least two different early pregnancy target features.
  4. 4. The method of claim 1, wherein said determining at least one tangential plane that at least partially coincides with an area of each of said at least two different early pregnancy target feature areas as at least one standard tangential plane of said early pregnancy fetus comprises: determining a tangential plane substantially coincident with each of said at least two distinct early pregnancy target feature regions as a normal tangential plane to said early pregnancy fetus.
  5. 5. The method of claim 1, wherein the standard cut surface comprises at least one of a standard cut surface of a head region, a standard cut surface of a body region, and a standard cut surface of a whole body region, the standard cut surface of the head region comprising at least one of a lateral ventricle horizontal cross-section, a double-roof diameter cut surface, and a head and neck median sagittal cut surface, the standard cut surface of the body region comprising at least one of a chest diameter cut surface, an abdominal circumference cut surface, an abdominal wall umbilical cord insertion cut surface, a bladder cut surface, a spinal longitudinal axis cut surface, and a torso long axis cut surface, the standard cut surface of the whole body region comprising a roof-hip diameter cut surface.
  6. 6. The method of claim 5, wherein when the standard cut is the top-hip diameter cut, the corresponding early pregnancy target feature comprises nasal bone and genital ridge, when the standard cut is a lateral ventricle horizontal cross-cut, the corresponding early pregnancy target feature comprises cerebral sickle, lateral ventricle and choroid plexus, when the standard cut is a dual top-diameter cut, the corresponding early pregnancy target feature comprises thalamus and skull ring, when the standard cut is a head and neck mid-sagittal plane, the corresponding early pregnancy target feature comprises a neck posterior transparent layer and nasal bone, when the standard cut is a chest diameter cut, the corresponding early pregnancy target feature comprises heart, ribs and spinal bone, when the standard cut is a ventral peripheral cut, the corresponding early pregnancy target feature comprises gastric bulb, spinal bone and liver, when the standard cut is an abdominal wall insertion, the corresponding early pregnancy target feature comprises umbilical cord insertion, umbilical cord, anterior bone and umbilical cord, when the standard cut is a head and neck mid-sagittal plane, the corresponding early pregnancy target feature comprises neck posterior transparent layer and spinal bone, when the standard cut is a chest diameter cut, the corresponding early pregnancy target feature comprises gastric bulb and spinal bone, and spinal cord feature when the standard cut is a ventral peripheral cut, the corresponding early pregnancy target feature comprises the long axis and spinal cord feature.
  7. 7. A method of ultrasound imaging of a fetus at an early pregnancy, the method comprising: Transmitting ultrasonic waves to the fetus in early pregnancy, and receiving echoes of the ultrasonic waves to obtain ultrasonic echo signals; Obtaining three-dimensional ultrasonic data of the early-pregnancy fetus according to the ultrasonic echo signals; extracting image features of a target area of the three-dimensional ultrasonic data according to the three-dimensional ultrasonic data; Determining the normal direction of a target standard tangent plane and the position information of a preset point on the target standard tangent plane according to the image characteristics of the target area, wherein the normal direction of the target standard tangent plane is determined according to the mapping relation between the image characteristics of the target area and the normal direction of the standard tangent plane corresponding to the image characteristics of the target area; Determining the target standard tangent plane according to the normal direction of the target standard tangent plane and the position information of a preset point on the target standard tangent plane; and displaying the target standard section.
  8. 8. The method of claim 7, wherein the method further comprises: regression is carried out on the mapping relation between the image characteristics of the target area and the normal direction of the standard tangent plane corresponding to the image characteristics of the target area by adopting a machine learning model or a deep learning model; and regression is carried out on the mapping relation between the image characteristics of the target area and preset points on the standard tangent plane corresponding to the image characteristics of the target area by adopting a machine learning model or a deep learning model.
  9. 9. The method of claim 7 or 8, wherein the standard cut surface comprises one or more of a lateral ventricle horizontal cut surface, a dual-top diameter cut surface, a head and neck mid-sagittal cut surface, a chest diameter cut surface, an abdominal circumference cut surface, an abdominal wall umbilical cord insertion section, a bladder cut surface, a spinal longitudinal axis cut surface, a torso long axis cut surface, and a top hip diameter cut surface.
  10. 10. A method of ultrasound imaging of a fetus at an early pregnancy, the method comprising: Transmitting ultrasonic waves to the fetus in early pregnancy, and receiving echoes of the ultrasonic waves to obtain ultrasonic echo signals; obtaining three-dimensional ultrasonic data of the early-pregnancy fetus based on the ultrasonic echo signals; Determining the direction of a target area of the early-pregnancy fetus according to the three-dimensional ultrasonic data, wherein when the target area is a head area, the direction of the target area comprises the left-right direction of the head area; displaying the direction of the target area of the early-pregnancy fetus in the three-dimensional ultrasonic data.
  11. 11. The method according to claim 10, wherein the method further comprises: extracting at least one standard tangent plane from the three-dimensional ultrasonic data according to the direction of the target area; Displaying the at least one standard cut surface.
  12. 12. The method of claim 11, wherein the step of determining the position of the probe is performed, When the target area is a head area, the at least one standard tangent plane comprises a standard tangent plane corresponding to the head area, wherein the standard tangent plane corresponding to the head area comprises at least one of a lateral ventricle horizontal transverse plane, a double-top diameter tangent plane and a head and neck median sagittal tangent plane; When the target area is a body area, the at least one standard tangent plane comprises a standard tangent plane corresponding to the body area, the standard tangent plane corresponding to the body area comprises at least one of a chest diameter tangent plane, an abdominal circumference tangent plane, an umbilical cord insertion section of an abdominal wall, a bladder tangent plane, a longitudinal axis tangent plane of a spine, and a long axis tangent plane of a trunk, and the standard tangent plane corresponding to the whole body area comprises a top-hip diameter tangent plane.
  13. 13. The method according to any one of claims 10-12, wherein said determining the direction of the target area of the early-gestating fetus from the three-dimensional ultrasound data comprises: Detecting the head region of the early pregnancy fetus in the three-dimensional ultrasonic data, determining the left and right directions of the head region according to the symmetry of the head region of the early pregnancy fetus, or Extracting the median sagittal plane of the head region of the early pregnancy fetus from the three-dimensional ultrasonic data, determining the normal direction of the median sagittal plane of the head region as the left-right direction of the head region, or Detecting a spinal region of the fetus at early pregnancy in the three-dimensional ultrasonic data, determining the direction of the body region based on the direction of the spinal region, or And detecting the body area of the early pregnancy fetus from the three-dimensional ultrasonic data, and determining the direction of the body area according to the shape of the body area.
  14. 14. The method according to any one of claims 10-13, wherein said extracting at least one standard slice from said three-dimensional ultrasound data according to the direction of said target region comprises: determining a plurality of candidate cuts in the three-dimensional ultrasound data according to the direction of the target region; and selecting at least one standard tangent plane corresponding to the target area from the plurality of candidate tangent planes.
  15. 15. The method of claim 14, wherein selecting at least one standard facet from the plurality of candidate facets that corresponds to the target region comprises: Judging the probability of each candidate tangent plane as a standard tangent plane by adopting a trained machine learning model, and determining the candidate tangent plane with the probability meeting a first threshold as at least one standard tangent plane corresponding to the target area, or Judging the probability of each candidate tangent plane as a standard tangent plane by adopting a trained machine learning model, and determining the candidate tangent plane with the highest probability as one standard tangent plane corresponding to the target area, or And detecting early pregnancy target feature structures corresponding to at least one standard tangent plane on the plurality of candidate tangent planes, and determining the candidate tangent plane with the existence probability of the early pregnancy target feature structures meeting a second threshold as the standard tangent plane.
  16. 16. The extracting at least one standard tangent plane from the three-dimensional ultrasonic data according to the direction of the target area comprises the following steps: detecting early pregnancy target features corresponding to at least one standard cut plane in the three-dimensional ultrasound data; And determining a section which at least partially coincides with the early pregnancy target feature structure and the included angle between the early pregnancy target feature structure and the direction of the target area meets the preset requirement as the at least one standard section.
  17. 17. The method of claim 16, wherein determining a facet that at least partially coincides with the early pregnancy target feature and that an angle with the direction of the target area meets a preset requirement as the at least one standard facet comprises: And determining a tangent plane which is basically coincident with the early pregnancy target feature structure and has an included angle of 0 degrees with the direction of the target area as a standard tangent plane.
  18. 18. An ultrasound imaging system, the ultrasound imaging system comprising: an ultrasonic probe; A transmitting/receiving circuit for exciting the ultrasonic probe to transmit ultrasonic waves to the fetus at early pregnancy and receiving echoes of the ultrasonic waves to obtain ultrasonic echo signals; A processor for performing the method for processing ultrasound data of a fetus at early pregnancy according to any one of the preceding claims 1-17 And the display is used for displaying the three-dimensional ultrasonic data of the early-pregnancy fetus and the section and/or the parameter obtained based on the three-dimensional ultrasonic data.

Description

Ultrasonic imaging method and ultrasonic imaging system for early pregnancy fetus Information of divisional application The patent application of the invention is a divisional application of patent application No. 202080105099.5 submitted on 11/16/2020, and the patent application of the invention is named as an ultrasonic imaging method and an ultrasonic imaging system for a fetus in early pregnancy. Technical Field The application relates to the technical field of ultrasonic imaging, in particular to an ultrasonic imaging method and an ultrasonic imaging system for a fetus at early pregnancy. Background The ultrasonic examination has wide application in clinical examination due to the advantages of safety, convenience, no radiation, low cost and the like, and becomes one of main auxiliary means for doctors to diagnose diseases. Prenatal ultrasound examination is used as the most important imaging examination in prenatal examination, and provides the most important imaging evidence for fetal growth and development measurement and structural abnormality screening. Prenatal ultrasound examination has been one of the examinations that must be performed during early pregnancy, middle pregnancy and late pregnancy. In practical clinical application, developing fetal structure examination and deformity screening in early pregnancy is a current clinical development trend and research hotspot. The fetal structure screening can be carried out in early pregnancy to find lethal malformation as early as possible, so that the pregnant woman can be provided with the opportunity of stopping pregnancy as early as possible, and the damage to physical health and spirit can be reduced to the greatest extent, so that the fetal structure screening method has very important clinical significance and value. However, the number of sections for screening the structural abnormality of the fetus at the early pregnancy period is large, the requirements of each section are different, the acquisition of the section is complicated, and the quality of the section is greatly influenced by the experience and the manipulation of doctors. Disclosure of Invention In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter. A first aspect of an embodiment of the present application provides an ultrasound imaging method for a fetus at early pregnancy, the method comprising: Transmitting ultrasonic waves to the fetus in early pregnancy, and receiving echoes of the ultrasonic waves to obtain ultrasonic echo signals; obtaining three-dimensional ultrasonic data of the early-pregnancy fetus based on the ultrasonic echo signals; Determining the direction of a target area of the early-pregnancy fetus according to the three-dimensional ultrasonic data; extracting at least one standard tangent plane corresponding to the target area from the three-dimensional ultrasonic data according to the direction of the target area; Displaying the at least one standard cut surface. A second aspect of embodiments of the present application provides a method of ultrasound imaging of a fetus at early pregnancy, the method comprising: Transmitting ultrasonic waves to the fetus in early pregnancy, and receiving echoes of the ultrasonic waves to obtain ultrasonic echo signals; obtaining three-dimensional ultrasonic data of a fetus at an early pregnancy according to the ultrasonic echo signal; Detecting regions of at least two different early pregnancy target features from the three-dimensional ultrasound data; Determining at least one tangential plane at least partially coincident with each of the regions of the early pregnancy target feature in the at least two different regions of the early pregnancy target feature as at least one standard tangential plane of the early pregnancy fetus; Displaying the at least one standard cut surface. A third aspect of embodiments of the present application provides an ultrasound imaging method for a fetus at early pregnancy, the method comprising: Transmitting ultrasonic waves to the fetus in early pregnancy, and receiving echoes of the ultrasonic waves to obtain ultrasonic echo signals; obtaining three-dimensional ultrasonic data of a fetus at an early pregnancy according to the ultrasonic echo signal; Matching the three-dimensional ultrasonic data with an ultrasonic data template of a pre-configured early pregnancy standard section, and determining a target standard section in the three-dimensional ultrasonic data according to a matching result, wherein the early pregnancy standard section comprises at least one of a lateral ventricle horizontal cross section, a double-top diameter section, a head and neck middle sagittal section, a ch