Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Ultrasound imaging apparatus, ultrasound imaging method and ultrasound imaging program

An imaging device, ultrasonic technology, applied in ultrasonic/sonic/infrasonic diagnosis, acoustic diagnosis, infrasonic diagnosis, etc., can solve problems such as error vector and boundary recognition reduction

Inactive Publication Date: 2014-07-02
HITACHI LTD
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in an area with a lot of noise in the image data, such as a penetrating boundary area where the echo signal becomes weak, an error vector may be generated due to the influence of the noise when calculating the motion vector, and the recognition of the boundary may be reduced.

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
  • Ultrasound imaging apparatus, ultrasound imaging method and ultrasound imaging program
  • Ultrasound imaging apparatus, ultrasound imaging method and ultrasound imaging program
  • Ultrasound imaging apparatus, ultrasound imaging method and ultrasound imaging program

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0054] figure 1 The system configuration of the ultrasonic imaging apparatus of this embodiment is shown. This device has the function of ultrasonic boundary detection. Such as figure 1 As shown, the device includes an ultrasonic probe (probe) 1, a user interface 2, a transmission beamformer 3, a control system 4, a transmission and reception switch 5, a reception beamformer 6, an envelope detection unit 7, a scan conversion device 8, processing unit 10, parameter setting unit 11, synthesis unit 12, and display unit 13.

[0055] The ultrasonic probe 1 in which ultrasonic elements are arranged one-dimensionally is a transmitting unit that transmits an ultrasonic beam (ultrasonic pulse) to a living body, and a receiving unit that receives an echo signal (received wave signal) reflected from a living body. Under the control of the control system 4 , the transmission wave beamformer 3 outputs a transmission wave signal having a delay time corresponding to the transmission wave ...

no. 2 Embodiment approach

[0093] In the second embodiment, when a virtual image occurs in the scalar field image obtained in the first embodiment, the virtual image and the like are removed. That is, the reliability of the image region is recognized, and by removing the region with low reliability, virtual images are removed, and the reliability of the entire image is improved. use Figure 9 as well as Figure 10 to illustrate the point.

[0094] Figure 9 (a) is a scalar field image obtained by setting p=1 in the formula (1) as described in the first embodiment, and a virtual image is generated at the boundary portion. Figure 9 (b) is a histogram used in the recognition of the reliability of the image region, Figure 9 (c) is a scalar field image in which the luminance of an image region with low reliability is replaced with a dark color. Figure 10 It is a flowchart showing the operation of the processing unit 10 for removing virtual images.

[0095] First, when the processing unit 10 receives...

no. 3 Embodiment approach

[0099] In the first embodiment, the statistics (deviation degree or variation coefficient) of the p-norm distribution were obtained to generate an image, but in the third embodiment, a tissue-identifiable image was generated from the p-norm distribution using another method. The image of the border. use Figure 11 as well as Figure 12 to describe the processing method.

[0100] In the distribution of the p-norm value in the search area 32, as described in the first embodiment, the candidate area 33 along the boundary of the subject forms a region where the p-norm value becomes smaller along the boundary (trough of the p-norm value). ). Therefore, the distribution of the p-norm value has a characteristic that the value of the candidate region 33 along the boundary shows a smaller value than the value of the candidate region 33 along the direction perpendicular to the boundary. In this embodiment, this feature is used to generate an image.

[0101] Figure 11 The processi...

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

Provided is an ultrasound imaging apparatus with which it is possible to directly generate a scalar field image and detect tissue borders without determining movement vectors. The received signal is processed and images of two or more frames are generated. Two frames are selected from the images. Multiple regions of interest are established in one frame and in another frame, search regions that are broader than the regions of interest are established for each of the multiple regions of interest. Within a search region, multiple candidate regions of a size corresponding to the region of interest are established. The distribution of norms within the search region is determined by determining the norm between the pixel value of the region of interest and the pixel value in a candidate region for each of the multiple candidate regions. Images are generated by using a value, which represents the state of norm distribution, as the pixel value of the region of interest corresponding to the search region.

Description

technical field [0001] The present invention relates to an ultrasonic imaging method and an ultrasonic imaging device capable of clearly identifying tissue boundaries when imaging a living body with ultrasonic waves. Background technique [0002] In an ultrasonic imaging device used for medical image diagnosis, a method of estimating the elastic coefficient distribution of tissue based on the change amount of a small area of ​​a diagnostic moving image (B-mode image) and converting the hardness into a color map for display is known. However, in the edge of the tumor, there is no significant difference in acoustic impedance and elastic modulus compared to the surrounding tissue, and in this case, neither the diagnostic moving image nor the elasticity image can grasp The border between a tumor and surrounding tissue. [0003] Therefore, there is a method of obtaining a motion vector of each region of the diagnostic image by block matching processing for two pieces of diagnost...

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
CPCA61B8/5223A61B8/469A61B8/485A61B8/461A61B8/0858A61B8/467A61B8/5215G01S7/52036G01S7/52071G16H50/30G16H50/20A61B8/14A61B8/463A61B8/5207A61B8/5246
Inventor 增井裕也东隆
Owner HITACHI LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com