CN101543410A - Digital imaging system of X rays acquired from fluorescent screen images - Google Patents
Digital imaging system of X rays acquired from fluorescent screen images Download PDFInfo
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- CN101543410A CN101543410A CN200910050554A CN200910050554A CN101543410A CN 101543410 A CN101543410 A CN 101543410A CN 200910050554 A CN200910050554 A CN 200910050554A CN 200910050554 A CN200910050554 A CN 200910050554A CN 101543410 A CN101543410 A CN 101543410A
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Abstract
The invention discloses a digital imaging system of X rays acquired from fluorescent screen images, which is characterized in that the system consists of an X ray generator, a fluorescent screen, a lens, an imager, an image acquisition card and a computer, wherein the X ray generator presents body images projected by high-voltage X rays on a medical fluorescent screen, the lens, the imager and the image acquisition card acquire the images on the fluorescent screen to achieve the conversion between the X rays and visible light, then the acquired images are transmitted to the computer or an LCD display by a data wire or a Bluetooth wirelessly, and the computer of the LCD display restores or reinforces the images acquired by low dosage of the X rays for auxiliary diagnosis by a doctor. Compared with the prior art, the digital imaging system has the advantages of simple structure, convenient operation, high image definition and low production cost, is convenient for data management and network transmission of image case histories, creates a condition for remote diagnosis, and is particularly suitable to be popularized and applied in community and rural medical institutions.
Description
Technical field
The present invention relates to medical image digital technology field, specifically a kind of X ray digital imaging system that is collected in fluorescent screen images.
Background technology
Along with electronic technology and development of computer, the digital imaging system of X ray is gradually in the large hospital promotion and application.Because digitalized image has the advantage that the imaging expense is low, image taking speed is fast, easy to operate than traditional film, and be convenient to carry out the data base administration and the network transmission of image case history, for remote diagnosis has been created condition.Particularly along with the development of system of social security, inexpensive, portable digital X radiation imaging apparatus more and more is subjected to the attention of community and small towns medical treatment.
Find that by prior art documents the X ray digital imaging method that adopts of hospital mainly contains CR (computer radiography) system, image amplifier method and based on three kinds of DR (direct radiography) systems of dull and stereotyped semiconductor detector at present.Earlier (Imaging Plate IP) carries out the collection of image information, after by reading device the image information in the imaging plate being read then, is handled by Computerized image processing system with imaging plate in the CR system.Although CR is faster than film speed, the image plate must be removed from the X ray exposure room, put it in the reader then, thereby can not provide the institute of X ray digital technology to have superiority.Early stage DR adopts intensifying screen to add optical lens coupled CCD (digitized bonder) to obtain the digital X ray image, and the CCD receptor is made up of photodiode, constitutes the row and the row of a sensor sequence (a panadaptor grid).Charge Storage is in each photodiode, and the energy every trade is transmitted, and arrives the edge of CCD, and signal is exaggerated then.The major advantage of CCD technology is to obtain dynamic image continuously, and the spatial resolution height of image.Single CCD that Shenzhen Angell Technology Co., Ltd. produces, the DR system of big face battle array design just belongs to this product.The DR of widespread usage mainly is that the picture signal that adopts flat panel detector (FPD) that X ray is produced scans and directly reads now, image-forming principle is to be earlier that the thin layer (TFT) that visible light is formed by photodiode is assembled with the X ray signal transition, is directly read by special reading circuit and send computer system to handle.DR (direct radiography) system of the dull and stereotyped semiconductor detector of being made up of amorphous selenium, non-crystalline silicon or CCD is because of its image that can directly create number format, has better spatial resolution and dynamic range and developed rapidly.
But the price of the above-mentioned X ray digital imaging system that large hospital adopts is all quite expensive, is unaffordable to community and township hospital.Simultaneously, the production difficulty of critical component is big, cost is high, is difficult to popularization and application.
From patent European Patent 264218, can learn that a kind of CCD of utilization collection X ray is created on the image on the fluorescent screen, then the acquisition image is carried out digital processing, require CCD to be cooled at least-400C, to reduce noise.But, thereby there not be consideration in medically application because the time of exposure of equipment is generally several minutes even a few hours.
Guo Mingan etc. are at " sensor technology " 2004,23 (9): 84-85, the paper of delivering on 88 " based on the Pulsed X-ray real-time imaging system of CCD " is made up of high-voltage pulse x-ray source, X ray intensifying screen, ccd video camera, image acquisition and panel and computer and related software.Intensifying screen is selected the green rare earth intensifying screen of the high sense of conversion efficiency for use; Image acquisition needs the strict accurately triggering synchronously of triggering signal; Be used for industrial detection.
Magnify roc etc. at " nuclear electronics and Detection Techniques " Vol.27 (3): the paper that 571-575 delivers " based on the coupled digital X-ray imaging system design of CCD-camera lens with improve ", by conversion screen (making) X ray is converted to visible light by scintillation crystal or phosphorus, be 45 ° reflecting medium reflection again through the angle of inclination, make luminous ray arrive optical lens.Optical lens is collected light and imaging on the CCD chip, and picture signal is digitized and by data collecting system input computer, uses corresponding software that image is shown at last and handles.
Patent ZL200620123031.7 " X ray digital imaging apparatus ", a kind of X ray digital imaging apparatus with low cost is provided, illuminator reflexes to digital camera with the visible light of light conversion screen, digital camera and illuminator all are contained in the same camera bellows, be connected with outside with USB interface, available low-light level night vision device is replaced digital camera work.
Summary of the invention
A kind of X ray digital imaging system that is collected in fluorescent screen images of providing at the deficiencies in the prior art is provided, it adopts recovery and the enhancing of digital image processing techniques to the low dose X-ray image, make the medical image quality improve greatly, be convenient to data management and network transmission that the doctor carries out medical diagnosis and image case history, for remote diagnosis has been created condition, and imaging device low cost of manufacture, easy and simple to handle, be convenient for carrying, be particularly suitable for the promotion and application of community and small towns medical institutions.
The concrete technical scheme that realizes the object of the invention is: a kind of X ray digital imaging system that is collected in fluorescent screen images, characteristics are that this system is made up of x ray generator, fluorescent screen, imager, image pick-up card and computer, imager is CCD or CMOS, which is provided with the microspur wide-angle lens, imager and fluorescent screen are arranged in the darkroom, and the darkroom external fixation is connected with the image pick-up card that bluetooth transmits; Image pick-up card is gathered fluoroscopic image, and realize being sent to computer or being provided with the LCD display that bluetooth receives by data wire or blue teeth wireless after the conversion of X ray and visible light, computer or be provided with LCD display that bluetooth receives the image of low dose X-ray collection is recovered and strengthens after supply the doctor that common disease is carried out computer-aided diagnosis.
Described image is still image or dynamic image.
The present invention compared with prior art has the advantage that device structure is simple, easy to operate, imaging definition is high, production cost is low, be convenient to the data management and the network transmission of image case history, for remote diagnosis has been created condition, especially be fit to the promotion and application of community and small towns medical institutions.
Description of drawings
Fig. 1 is a structural representation of the present invention
Fig. 2 is the invention process illustration
The specific embodiment
Just the present invention will be further described for above embodiment, is not in order to the restriction this patent, all for the present invention's equivalence enforcement, all should be contained within the claim scope of this patent.
Claims (2)
1, a kind of X ray digital imaging system that is collected in fluorescent screen images, it is characterized in that this system is made up of x ray generator, fluorescent screen, imager, image pick-up card and computer, imager is CCD or CMOS, which is provided with the microspur wide-angle lens, imager and fluorescent screen are arranged in the darkroom, and the darkroom external fixation is connected with the image pick-up card that bluetooth transmits; Image pick-up card is gathered fluoroscopic image, and realize being sent to computer or being provided with the LCD display that bluetooth receives by data wire or blue teeth wireless after the conversion of X ray and visible light, computer or be provided with LCD display that bluetooth receives the image of low dose X-ray collection is recovered and strengthens after supply the doctor that common disease is carried out computer-aided diagnosis.
2,, it is characterized in that described image is still image or dynamic image according to the described X ray digital imaging system that is collected in fluorescent screen images of claim 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910050554A CN101543410A (en) | 2009-05-05 | 2009-05-05 | Digital imaging system of X rays acquired from fluorescent screen images |
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| CN200910050554A CN101543410A (en) | 2009-05-05 | 2009-05-05 | Digital imaging system of X rays acquired from fluorescent screen images |
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| CN101543410A true CN101543410A (en) | 2009-09-30 |
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| CN200910050554A Pending CN101543410A (en) | 2009-05-05 | 2009-05-05 | Digital imaging system of X rays acquired from fluorescent screen images |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103919566A (en) * | 2013-01-14 | 2014-07-16 | 北京科实医学图像技术研究所 | Sensitization sheet camera-shooting scheme |
| CN104434157A (en) * | 2015-01-04 | 2015-03-25 | 管存忠 | Medical X-ray machine for automatic tracking, positioning and shooting for visual measurement |
| CN110881111A (en) * | 2019-11-21 | 2020-03-13 | 杭州电子科技大学 | Small object multi-angle X-ray digital image acquisition system and method |
-
2009
- 2009-05-05 CN CN200910050554A patent/CN101543410A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103919566A (en) * | 2013-01-14 | 2014-07-16 | 北京科实医学图像技术研究所 | Sensitization sheet camera-shooting scheme |
| CN104434157A (en) * | 2015-01-04 | 2015-03-25 | 管存忠 | Medical X-ray machine for automatic tracking, positioning and shooting for visual measurement |
| CN104434157B (en) * | 2015-01-04 | 2016-07-06 | 管存忠 | The automatic track and localization photography medical X ray machine of a kind of vision measurement |
| CN110881111A (en) * | 2019-11-21 | 2020-03-13 | 杭州电子科技大学 | Small object multi-angle X-ray digital image acquisition system and method |
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Open date: 20090930 |