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Ultrasonic diagnostic equipment

一种诊断装置、超声波的技术，应用在声波诊断、次声波诊断、超声波/声波/次声波诊断等方向，能够解决即时显示困难、检查对象应用困难等问题，达到降低轮廓构造的效果

Inactive Publication Date: 2012-07-18
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technique described in Patent Document 1 does not consider the position deviation of the inspection object, so it is difficult to apply to the inspection object with movement, and it is also difficult to display it in real time because the operator selects the image used for the addition processing
In the technology described in Patent Document 2, it is necessary to temporarily store all the added frames in the memory, and there is a problem that more memory than the number of frames used for the addition is required in order to form a single added image to be displayed.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] figure 1 It is a block diagram showing the configuration of an ultrasonic diagnostic apparatus according to an embodiment of the present invention.

[0039]In the ultrasonic diagnostic apparatus of the present embodiment, an ultrasonic two-dimensional image (hereinafter referred to as a B-mode image) is formed by transmitting and receiving ultrasonic waves to an inspection object, and an image for measuring the inspection object is set on the B-mode image. In the area of ​​the motion vector, the motion vector generated between the acquired B-mode image and the image one frame before it is measured in each of the measurement areas, and the cumulative addition image is deformed based on the motion vector (Correcting), multiplying the cumulative addition image by the weight coefficient, adding to the obtained B-mode image to form a new cumulative addition image, and displaying it on the display unit in real time.

[0040] First, the device configuration from the configura...

Embodiment 2

[0063] A second embodiment of the present invention will be described. In the second embodiment, when performing the activity measurement and the addition process shown in the first embodiment, the addition image composed of a certain number of sheets is formed in another memory, and when the operator uses the refresh function, the image is displayed according to the fixed number of images. The addition operation state of the number can realize the form of the cumulative addition operation image.

[0064] use Figure 11 The block diagram shown illustrates the device configuration. The configuration of the B-mode image, the measurement of the motion vector, and the addition processing of the image up to the configuration of the addition image are the same as in the first embodiment. In the second embodiment, except figure 1 In addition to the device configuration of the first embodiment shown, the refresh image storage unit 17 , motion vector storage unit 18 , image subtract...

Embodiment 3

[0072] A third embodiment of the present invention will be described. In the third embodiment, the addition image formed by accumulating acquired images is divided into a plurality of units to form a unit image, and by adding a weight coefficient to each unit image, it is possible to display an addition with a high effect of addition and a low residual error. Operate the image.

[0073] exist Figure 12 Indicates the configuration of the device. Assuming that the number of images to be added in advance set by the operator is 30, and the number of images of the constituent units is 5, the following processing steps will be described.

[0074] Using the image f input by the ultrasonic image construction unit n and the image f of its previous frame n-1 The steps for measuring the motion vector are the same as those described in Embodiment 1 and Embodiment 2. However, in the third embodiment, five added images are constructed in the image adding unit 13 and stored as unit ima...

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Abstract

Ultrasonic diagnostic equipment which displays a high contrast ultrasonic image enhancing the outline structure of an inspection object. More specifically, the motion vector of an object occurring between images used for addition is measured using a captured ultrasonic image, deformation processing is performed on accumulated addition image based on the measurement, and then addition processing is performed by multiplying the acquired image and the accumulated addition image by weighting coefficients.

Description

technical field [0001] The invention relates to a device for reducing speckle noise and displaying high-contrast ultrasonic images. Background technique [0002] Ultrasonic diagnostic equipment is widely used as a monitoring tool for treatment in the initial diagnosis and fetal diagnosis of the outside world because it can image the affected part in real time in a non-invasive manner. In recent years, the development of portable ultrasonic diagnostic equipment has also been progressing, and it has become possible to carry the equipment around patients for emergency treatment regardless of whether they are inside or outside the hospital. In addition, in addition to the small size of the processing device, the ultrasonic diagnostic device is also easy to operate. Therefore, through the development of network equipment in patients' homes and hospitals, it is expected that patients can operate the device and transmit images to the hospital in the future, thereby enabling remote ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B8/00
CPCA61B8/5276A61B5/7475G01S7/52077A61B8/08A61B8/463G01S7/52084G01S7/52074
Inventor 吉川秀树东隆林达也
Owner HITACHI LTD