Unlock instant, AI-driven research and patent intelligence for your innovation.

Calibration system based on double-section ultrasonic probe and calibration method

A technology of ultrasonic probe and calibration system, which is applied in the field of medical equipment, can solve problems such as difficulty in precise position, inaccurate solution of transformation matrix, etc., and achieve the effect of efficient acquisition

Active Publication Date: 2017-03-22
苏州国科康成医疗科技有限公司
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]In the prior art, the ultrasonic calibration phantom is only for ordinary ultrasonic probes; It is difficult to accurately identify and calibrate the precise position of phantom imaging markers, which leads to inaccurate solution of transformation matrix

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Calibration system based on double-section ultrasonic probe and calibration method
  • Calibration system based on double-section ultrasonic probe and calibration method
  • Calibration system based on double-section ultrasonic probe and calibration method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Such as Figure 1 to Figure 4 As shown, the present invention provides a calibration system based on a dual-section ultrasonic probe, which includes: a magnetic locator transmitter 10, which is used to transmit electromagnetic positioning signals; a dual-section ultrasonic probe 20, which has two ultrasonic cross-sections. A magnetic locator receiver 30 is fixed on the ultrasonic probe 20; the electromagnetic locating signal received by the magnetic locator receiver 30 determines the spatial position of the two ultrasonic cross-sections; the calibration simulation body 40 includes a water tank 41 and a water tank 41. The first calibration component 42 and the second calibration component 42; and, the magnetic locator probe 50, which is communicatively connected to the magnetic locator transmitter 10 to measure the spatial coordinates of the calibration phantom 40 relative to the magnetic locator transmitter 10; Wherein, the first calibration component 42 and the second ca...

Embodiment 2

[0060] On the basis of Embodiment 1, this embodiment provides a calibration method of a calibration system based on a dual-section ultrasonic probe, such as Image 6 As shown, including the following steps:

[0061] S10, calibration data collection. Measure the spatial coordinates of the four positioning grooves as the marking points relative to the transmitter 10 of the magnetic locator, and measure each positioning groove 10 times. Determine the image coordinate origin of the cross-sectional image and the sagittal image of the two ultrasonic cross-sections; collect the two ultrasonic cross-sections and cut the N-line to form an ultrasonic image with multiple intersection points and the corresponding coordinate reading of the magnetic locator receiver 30. Multiple intersections in ultrasound images, Figure 5 Examples of three intersections such as V7, V8, and V9 are given in.

[0062] S20, preprocessing of calibration data. The coordinate data of each positioning groove 411 as ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a calibration system based on a double-section ultrasonic probe. The calibration system comprises a magnetic locator transmitter, a magnetic locator receiver, a calibration simulating body and a magnetic locator probing pen, the magnetic locator receiver is fixed on the double-section ultrasonic probe with two ultrasonic sections, the calibration simulating body comprises a water tank, a first calibration component and a second calibration component, the first calibration component and the second calibration component are arranged in the water tank and provided with wire groups respectively, and the wire groups are for the ultrasonic sections to corresponding cut respectively; height of water in the water tank is higher than that of each of the first calibration component and the second calibration component. The calibration simulating body aiming at the double-section probe is arranged, and a transformation matrix between a coordinate system of an ultrasonic image and that of the magnetic locator receiver is solved according to a linear constraint relation among points of intersection on the calibration simulating body and on the basis of iterative optimization of the least square method, so that data collection of ultrasonic calibration of the double-section probe and accurate solution of the ultrasonic calibration transformation matrix are facilitated.

Description

Technical field [0001] The present invention relates to the technical field of medical equipment, and more specifically, the present invention relates to a calibration system and a calibration method based on a double-section ultrasonic probe. Background technique [0002] The three-dimensional visualization of medical images can help doctors better understand the relative positional relationship between tissues and organs, and has great application prospects in clinical diagnosis, surgical planning and navigation. Parallel scanning CT and magnetic resonance images can be easily reconstructed in three dimensions, while traditional two-dimensional ultrasound images need to be converted into three-dimensional space by other means. For example, the electromagnetic positioning device, that is, by binding the positioning receiver on the ultrasound probe, the pixels in the two-dimensional ultrasound image can be transformed into the three-dimensional space, and the spatial transformati...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/00
CPCA61B8/44A61B8/4444A61B8/52A61B8/58
Inventor 胡冀苏戴亚康佟宝同赵凌霄
Owner 苏州国科康成医疗科技有限公司