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Ultrasonic CT device, image processing device, image processing method, and recording medium

An ultrasonic and medium technology, applied in the direction of ultrasonic/sonic/infrasonic image/data processing, ultrasonic/sonic/infrasonic diagnosis, ultrasonic/sonic/infrasonic Permian technology, etc., which can solve unevenness, decrease in received signal strength, etc. questions for an easy-to-interpret

Pending Publication Date: 2021-02-02
HITACHI HEALTHCARE MFG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the received signal strength of reflected and transmitted waves decreases
In addition, since the sagging breasts are not center-symmetrical, and the inclination angle varies depending on the direction, unevenness due to the inclination angle is a problem in reflected wave images and transmitted wave images

Method used

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  • Ultrasonic CT device, image processing device, image processing method, and recording medium
  • Ultrasonic CT device, image processing device, image processing method, and recording medium
  • Ultrasonic CT device, image processing device, image processing method, and recording medium

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Embodiment Construction

[0027] Hereinafter, an ultrasonic CT apparatus according to an embodiment of the present invention will be described with reference to the drawings.

[0028] In the following description, the mode in which the ultrasonic CT apparatus is used for breast examination will be described, but the object of imaging is not limited to the breast.

[0029] >

[0030] First, the main parts of the ultrasonic CT apparatus of the present embodiment will be described.

[0031] Such as figure 1 As shown, the ultrasonic CT apparatus of the present embodiment is configured to include a transducer array 3 and a signal processing unit 7 . Such as figure 2 As shown, an image generating unit 71 and a correcting unit 72 are arranged in the signal processing unit 7 .

[0032] The vibrator array 3 is, for example, as image 3 As shown, the vibrators are arranged in a ring-shaped array, and ultrasonic waves are irradiated to the subject 1 arranged in the medium 10 from multiple directions, and th...

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PUM

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Abstract

The invention provides a ultrasonic CT device, an image processing device, an image processing method, and a recording medium. In an ultrasonic CT device for breast examination, unevenness of an ultrasonic image due to a distribution of inclination angles of a breast is reduced. The distribution of the inclination angles of a surface of a subject in a contour of the subject is obtained from a tomographic image, and a signal level of a reception signal or a pixel value of the tomographic image is corrected using the distribution of the inclination angles.

Description

technical field [0001] The invention relates to an ultrasonic CT device. Background technique [0002] Ultrasonic CT (Computed Tomography) device is used to irradiate ultrasonic waves to the subject in the medium from multiple directions using the vibrator array, and receive the ultrasonic waves that have passed through the subject or reflected from the subject through the vibrator array. A device that converts signals into tomographic images of physical property values ​​(sound velocity, attenuation rate, reflectance, etc.) inside the subject. The vibrator array is, for example, a structure in which piezoelectric elements are used as vibrators and the vibrators are arranged in a ring shape. The subject is inserted into the opening of the ring-shaped vibrator array to be photographed. Patent Document 1 discloses the basic structure and imaging technology of ultrasonic CT. [0003] On the other hand, Patent Document 2 discloses an apparatus for generating an ultrasonic ima...

Claims

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Application Information

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IPC IPC(8): A61B8/08A61B8/00
CPCA61B8/0825A61B8/5261A61B8/44A61B8/58A61B8/4488A61B8/461A61B8/523A61B8/15A61B8/406A61B8/5223G01S15/8993A61B8/145G01S15/8945
Inventor 坪田悠史川畑健一寺田崇秀铃木敦郎武文晶山中一宏
Owner HITACHI HEALTHCARE MFG LTD
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