Method for measuring fetal head position based on ultrasound images and related apparatus

Abstract

The application relates to the technical field of ultrasound images, and discloses a fetal head direction measurement method based on an ultrasound image and a related device. The method comprises the following steps: emitting an ultrasonic signal to target tissue, collecting an ultrasonic echo signal reflected by the target tissue via the target tissue, forming an ultrasound image corresponding to the target tissue based on the ultrasonic echo signal, determining a fetal head direction from the ultrasound image, and displaying the fetal head direction. In the manner, medical staff can perform more accurate midwifery and clearly understand the state of a fetus based on the displayed fetal head direction, midwifery efficiency is improved, and production risks are reduced.

Claims

1. A method for measuring fetal head orientation based on ultrasound images, characterized in that, The method includes: An ultrasonic signal is emitted toward the target tissue, and the ultrasonic echo signal reflected by the target tissue is collected. An ultrasound image corresponding to the target tissue is generated based on the ultrasound echo signal; Determine whether the ultrasound image meets the preset standard; If so, the fetal head orientation is determined from the ultrasound image; The position of the fetal head is displayed; The step of determining whether the ultrasound image meets the preset standard includes: Edge detection is performed on the ultrasound images to determine the outline of the fetal head and the outline of the pubic symphysis; Determine the first area occupied by the fetal head contour in the ultrasound image and the second area occupied by the pubic symphysis contour in the ultrasound image; Determine whether the first area is greater than or equal to a first area threshold and whether the second area is greater than or equal to a second area threshold.

2. The method according to claim 1, characterized in that, The step of emitting ultrasonic signals to the target tissue and acquiring the ultrasonic echo signals reflected by the target tissue includes: During fetal delivery, ultrasound signals are emitted into the perineal tissue, and the ultrasound echo signals reflected by the perineal tissue are collected.

3. The method according to claim 1, characterized in that, Determining the fetal head position from the ultrasound image includes: Determine the brain midline and pelvic contour in the ultrasound images; Determine the angle between the midline of the brain and the pelvic axis in the pelvic contour; The orientation of the fetal head is determined based on the included angle.

4. The method according to claim 3, characterized in that, Determining the brain midline and pelvic contour in the ultrasound image includes: The ultrasound image is input into a trained segmentation model for segmentation processing to obtain the brain midline and the pelvic contour.

5. The method according to claim 3, characterized in that, Determining the fetal head position based on the included angle includes: Based on the included angle, the midline of the brain is mapped onto the fetal head orientation diagram; The display of the fetal head position includes: This displays a schematic diagram of the mapped fetal head orientation.

6. The method according to claim 5, characterized in that, The method further includes: Mark the brain midline and the corresponding angle on the ultrasound image; The schematic diagram showing the fetal head orientation after mapping includes: The ultrasound image with annotations and the mapped fetal head orientation diagram are displayed.

7. The method according to claim 5, characterized in that, The fetal head orientation diagram includes the anterior occiput region, the left occiput transverse region, the posterior occiput region, and the right occiput transverse region. The process of mapping the midline of the brain onto the fetal head orientation diagram based on the included angle includes: Based on the included angle, the midline of the brain is used as a pointer to map to the corresponding area on the fetal head orientation diagram.

8. An ultrasonic imaging device, characterized in that, The ultrasound imaging device includes: Ultrasonic probe; A transmitting circuit, connected to the ultrasound probe, is used to transmit ultrasound signals to the target tissue through the ultrasound probe; A receiving circuit, connected to the ultrasound probe, is used to acquire the ultrasound echo signal reflected by the target tissue; monitor; A processor, connected to the receiving circuit and the display, is configured to implement the method as described in any one of claims 1-7.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program, which, when executed by a processor, is used to implement the method as described in any one of claims 1-7.

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