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Exposure parameter adjusting method and device

A technology of exposure parameters and adjustment methods, applied in the fields of medical science, X-ray equipment, electrical components, etc., can solve problems such as inability to obtain image quality, and achieve the effect of accurate adjustment, accurate image grayscale, and improved image quality.

Active Publication Date: 2017-02-15
NEUSOFT MEDICAL SYST CO LTD
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Problems solved by technology

However, in practical applications, it is found that the exposure parameters adjusted by this second exposure method still cannot obtain a relatively ideal image quality when used in formal exposure.

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  • Exposure parameter adjusting method and device
  • Exposure parameter adjusting method and device
  • Exposure parameter adjusting method and device

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Embodiment Construction

[0028] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0029] AEC is a technology that can automatically adjust the exposure parameters of DR equipment, which can overcome the defects of low accuracy of manual exposure control in traditional methods. figure 1 A schematic diagram of the AEC system in a DR device is illustrated. The AEC system can be applied to the double exposure method (the second exposure method is one of the AEC control me...

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Abstract

The invention provides an exposure parameter adjusting method and device, wherein the method comprises the following steps of: obtaining a gray parameter of an interesting area in a pre-exposure image, wherein the pre-exposure image is obtained by pre-exposure of a detected body; according to the gray parameter and an exposure parameter when pre-exposure is carried out, obtaining the equivalent thickness of the detected body; and, according to the equivalent thickness and an expected gray parameter of the interesting area, determining an exposure parameter when formal exposure is carried out, wherein the exposure parameter comprises the tube voltage kv and the exposure dose mAs, so that the tube voltage kv and the exposure dose mAs are used in the formal exposure. By means of the exposure parameter adjusting method and device provided by the invention, the image quality when exposure is controlled by AEC can be improved.

Description

technical field [0001] The present application relates to medical equipment technology, in particular to a method and device for adjusting exposure parameters. Background technique [0002] Digital Radiography (Digital Radiography, referred to as: DR) equipment is widely used due to its advantages of low radiation dose and high image quality. In order to obtain ideal image quality, it is necessary to set appropriate exposure parameters for DR equipment. The parameters can include: The tube voltage (kv) and exposure dose (milliamp-seconds mAs) of the tube used to generate the rays. In the traditional method, the doctor can determine the value of the above exposure parameters according to the patient's height, weight and other patient characteristics, combined with his own subjective experience. However, this method of manually setting the exposure parameters completely relies on the doctor's subjective experience and lacks scientific basis. Theoretical basis, resulting in po...

Claims

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Application Information

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IPC IPC(8): H05G1/46A61B6/00
CPCA61B6/00A61B6/54H05G1/46
Inventor 李海春王化雨
Owner NEUSOFT MEDICAL SYST CO LTD
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