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Biological tissue motion trace method and image diagnosis device using the trace method

A technology of image diagnosis and tracking device, which is applied in the direction of diagnosis, image enhancement, image analysis, etc., and can solve the problems of loss of reliability and inability to become

Inactive Publication Date: 2005-10-12
HITACHI HEALTHCARE MFG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the reliability of the evaluation index of luminance, luminance average, and luminance change measured in the region of interest is impaired, and there is a problem that it cannot be used as an effective evaluation index.

Method used

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  • Biological tissue motion trace method and image diagnosis device using the trace method
  • Biological tissue motion trace method and image diagnosis device using the trace method
  • Biological tissue motion trace method and image diagnosis device using the trace method

Examples

Experimental program
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Embodiment 1

[0033] For the image diagnosis apparatus of one embodiment of the method for tracking the dynamic state of biological tissues of the present invention, use Figure 1 ~ Figure 4 Be explained. figure 1 Shows the procedure of the method for tracking the dynamic state of biological tissues of the present invention, figure 2 Is app figure 1 A block diagram of an image diagnosis apparatus constructed by a method for tracking the dynamic state of biological tissues. Such as figure 2 As shown, the image diagnosis apparatus includes the following parts: an image memory unit 1 that stores moving images of tomographic images of a subject, a display unit 2 that can display moving images, a console 3 for inputting instructions, and a tracking display on The automatic tracking unit 4 for the dynamic state of the living tissues of the moving image on the display unit 2, and the dynamic information calculating unit 5 for calculating various measurement information based on the tracking result...

Embodiment 2

[0050] figure 1 The example is to illustrate that whenever the tracking of a specified point of a frame image ends (S7), various information about the movement state of the tissue is calculated based on the movement of the specified point (S8). Example of information displayed on the display (S9). But the present invention is not limited to this, such as Picture 10 Shown, will figure 1 The step S10 of is arranged after the step S7, and the processing of the steps S8 and S9 can also be executed after the tracking of the designated points of all the frame images is completed.

[0051] Here, use the specific example of image tracking processing performed by the image correlation method Picture 11 Be explained. In the example of the figure, in order to simplify the description, the size of the cut-out image 25 is described as a rectangular 9-pixel area, and the search area 26 is also described as a rectangular 25-pixel area. That is, the cut-out image 25 shown in (a) is an exampl...

Embodiment 3

[0053] This embodiment can be applied to a moving image captured by an ultrasonic imaging method for tracking processing of a living body tissue. In particular, the RF signal corresponding to the moving image is memorized, and the position of the partial image with the highest degree of consistency of the image obtained by the image correlation method is corrected by using the RF signal to track the dynamic state of the biological tissue. The value changes smoothly.

[0054] in Picture 12 In particular, the case where the diagnostic image capturing device 7 is used as the ultrasonic diagnostic device 17 is shown. As the ultrasonic diagnostic apparatus 17, it transmits ultrasonic waves into the subject, receives the ultrasonic signals reflected by the tissues in the subject, processes the received signals, and displays the ultrasonic images in the subject based on the received signals to diagnose the subject’s disease And other diagnostic devices. The moving image given from the u...

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Abstract

A one frame image of a moving image formed by producing tomographic images of an object to be examined is displayed (S 2 ), a mark is superposed on a designated portion of a tissue the movement of which is tracked in the displayed one frame image (S 3 ), a cutout image of a size including the designated portion is set in the one frame image (S 4 ), local images are searched in another frame images of the moving image and a local image of the identical size which is most coincided with the cutout image is extracted (S 5,6 ), and a coordinate of the designated portion after movement is calculated based on a coordinate difference between the most coincided local image and the cutout image (S 7 ), thereby the movement of tissue is quantitatively measured.

Description

Technical field [0001] The present invention relates to a method for tracking the dynamic state of biological tissues suitable for ultrasonic diagnostic images, magnetic resonance images, and X-ray CT images, and an image diagnosis apparatus and program technology using the tracking method. Background technique [0002] Image diagnosis apparatuses such as an ultrasonic diagnostic apparatus, a magnetic resonance imaging (MRI) apparatus, and an X-ray CT apparatus are apparatuses that display a tomographic image of an examination part of an arbitrary subject on a monitor for diagnosis. For example, in the case of the circulatory system such as the heart and blood vessels and other active organs, the dynamic state of the biological tissues (hereinafter collectively referred to as tissues) that constitute them is observed and diagnosed through tomographic images. And other functions. [0003] In particular, if functions such as the heart can be quantitatively evaluated, the accuracy o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/08G06T7/20
CPCA61B8/469G06T2207/30101A61B8/08G06T7/20G06T2207/30048
Inventor 马场博隆森修
Owner HITACHI HEALTHCARE MFG LTD
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