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Calculating method for exposure index and deviation index in digital X-ray mammography system

A technology of exposure index and calculation method, applied in mammography, calculation, dosimeter, etc., can solve problems affecting the accuracy of exposure index, misguidance of exposure dose, inaccurate value of interest, etc., to avoid multiple exposures, reduce The effect of misdiagnosis rate and convenient exposure parameters

Inactive Publication Date: 2017-08-18
深圳艾砾拓科技有限公司
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Problems solved by technology

However, when calculating the interest value of the gland, the method defaults that the mammary gland contains dense areas and fat areas, which is invalid for the case of full fat glands and full dense glands, so the obtained value of interest is inaccurate , affecting the accuracy of exposure index
In addition, when correcting the exposure index, this method has no requirements for the environment in which the image is collected and the quality of the obtained image, resulting in a large deviation in the calculated data, misleading the doctor to evaluate the exposure dose, and affecting the image quality

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  • Calculating method for exposure index and deviation index in digital X-ray mammography system

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Embodiment Construction

[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0025] figure 1 It is a flow chart of the exposure index calculation method in the digital X-ray mammography system of an embodiment of the present invention. refer to figure 1 , the present invention provides a method for calculating exposure index in a digital X-ray mammography system, said method is applied in a digital X-ray mammography system, said digital X-ray mammography system includes a flat panel detector and said The flat panel detector is electrically connected to the dosimeter, and the digital mammography system i...

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Abstract

The invention provides a calculating method for the exposure index in a digital X-ray mammography system. The method includes the steps that the linear coefficient between the dosage value of a dosimeter and the gray level average value of each photo is calculated first, the interesting value in a mammary gland region in each photo is calculated, and the exposure index is calculated according to the interesting value and the linear coefficient, so that the calculated exposure index is accurate, and a doctor can adjust the exposure parameter conveniently to obtain high-quality images and reduce the misdiagnosis rate. The invention further provides a calculating method for the deviation index in the digital X-ray mammography system.

Description

technical field [0001] The invention relates to a method for calculating exposure index and deviation index in a digital X-ray mammography system. Background technique [0002] As one of the important issues of women's health, mammary gland has been paid more and more attention by people. In recent years, the incidence of breast cancer has been increasing year by year in our country, especially in many big cities, breast cancer has become the most common malignant tumor in women, which seriously threatens women's health. Studies have shown that if breast cancer can be detected early, its cure rate will be greatly improved, so early diagnosis of breast cancer has very important clinical value. [0003] The actual clinical discovery of breast cancer early shows that there are tiny calcifications in the breast. These tiny calcifications are difficult to find when using ultrasound imaging, and the use of digital mammography to examine the breast is an effective method for early...

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Application Information

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IPC IPC(8): A61B6/00G06T7/00G06T7/11G06T7/30G01T1/08
CPCA61B6/502A61B6/52A61B6/542G01T1/08G06T7/0012G06T2207/10116G06T2207/30068
Inventor 孙桂香王桂芳任小秋辛忠英
Owner 深圳艾砾拓科技有限公司
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