With the maturity and popularization of PACS technology, and the rapid development of various digital imaging equipment such as DR, CR, multi-row CT and 3D images, the purchase and configuration of medical monitors have become the focus of attention of hospitals and PACS integrators. As the medical display is the final presenter of medical images in the digital system, it carries the replacement of films, ensures the image quality, and finally realizes the observation and diagnosis of patients by doctors.
So, what are the special technical requirements for medical display in PACS? What are the specific differences between medical monitors and ordinary monitors? How to select and configure medical monitors?
This paper introduces the actual parameters and technology of Taiwan Province Qilin medical LCD in detail.
1. Introduction of Taiwan Province Chilin (Qiling) Company
Qiling is the third largest panel manufacturer in the world. In 2004, CLT made a breakthrough in the research and development technology of medical displays. Only a few display manufacturers in the world have the ability to develop and produce 1, 2, 3, 5 megabytes of professional medical displays. However, CLT is one of the manufacturers that can independently develop and produce medical displays in the world. Through painstaking research and development, CLT has developed a real 1 1.5 bit (LUT), and adopted Super IPS display technology to provide medical image quality that meets the requirements of doctors' diagnosis, thus realizing revolutionary medical image quality and revolutionary digital medical imaging technology. In addition, CLT also provides suitable medical display products and technologies for medical equipment manufacturers such as CT, DR, MRI, breast machine and angiography, and also provides a perfect medical imaging solution for PACS. CLT's medical display products have not only obtained the global and national medical safety certification, but also passed the American FDA A510 (k) and FDA's certification for Mammo and ISO 13485' s medical product manufacturing factory certification, which proves that CLT's medical display products are world-class products. See (
Qilin color series:
Model MDC1900-1clmdc2130-2scmdc2080-3c.
Size 19. 1 in21.3 inch 20.8 inch
The resolution is1280x1024/1600x1200/2mp2048x1536/3mp.
Brightness 280 CD/msup2; 500 CD/msup 2； 550 CD/msup 2；
RGB color scale16.77 million colors16.77 million colors16.77 million colors
Contrast 600:1500:1600:1.
Color temperature is 5000k-15000k 5000k-15000k 5000k-15000k.
Input interface DVI/ VGA DVI/ VGA DVI/ VGA
Certification FDA 510 (k); CE； CB； CCCUL； CSAVCCI； iso 13485； FCCMDD/CE
Specially equipped with software and hardware technology built-in: brightness constant controller; DICOM correction parameters; Interface with calibration sensor
Chilin monochrome series:
Model MDM1900-10dm2130-2dm2130-3dm2010-5n.
Size 19. 1 inch21.3 inch21.3 inch20.1inch2
The resolution is1280x1024/1MP1600x1200/2mp2048x1536/3mp2560x2048/5mp.
Gray scale 10 bit 10 bit 1 1.5 bit1.5 bit.
Brightness1000 CD/msup2; 1000 CD/msup 2； 800 CD/msup 2； 850 CD/msup 2；
Contrast 800:1700:1700:1600:1.
Angle of view170170170170.
Input interface DVI/ VGA DVI/ VGA DVI/ VGA DVI/ VGA
Certification FDA 510 (k); CE； CB； CCCUL； CSAVCCI； iso 13485； FCCMDD/CE
Specially equipped with software and hardware technology built-in: brightness constant controller; DICOM correction parameters; Interface with calibration sensor
2. The difference between medical monitors and ordinary computer monitors.
Due to the different application fields of medical monitors and ordinary monitors, the technical requirements for parameters are also different. The following is a comparison based on the main parameters:
1, supporting DICOM PART# 14 standard: A professional medical display must support DICOM PART# 14 standard, that is, it must have the ability to adjust the DICOM standard curve to make it consistent with DICOM standard, so as to ensure the display quality of images.
2. Support gray scale display: gray scale is a very important feature of black-and-white medical images, which reflects the hierarchical relationship between black-and-white images.
Gray display needs graphics card support, and medical special display needs special graphics card;
Ordinary displays include: 8bit- 256 gray scale, used to display color images, no gray scale requirements, using ordinary graphics cards;
The medical display includes: 10 bit- 1024 gray scale for displaying X-ray gray scale images. For diagnosis, the requirements are: 10 bit ~10 bit (1024 ~ 2048 gray scale).
3. Support SBC function (stable brightness control): the brightness of the display will decay with time, which is normal display.
Because there is no stable brightness control and calibration, it not only decays quickly, but also is affected by the environment, so its brightness cannot be kept at a level suitable for human eyes for a long time. In view of this problem, professional medical gray-scale display adopts stable brightness control technology to calibrate the brightness feedback information of the display at any time, so as to keep it above the standard brightness all the time, which meets the clinical film reading standard, and it needs 30,000 or even 65,438+10,000.
4. Resolution: the number of pixels actually displayed per unit area, such as 800x600, 1200x 1600, etc.
Ordinary displays are: 1024x768,1280x1204; Basically, it is a horizontal screen display, and there is no need for horizontal/vertical screen conversion;
Medical display includes: according to the needs of images, horizontal/vertical screen conversion,
1024x 1280 (vertical screen)/1280x 1024 (vertical screen),
It is called1100,000 pixels (1MP), which is commonly used in horizontal display and is mostly suitable for CT, MRI and digital gastrointestinal machines.
1200x 1600 (portrait screen)/1600x 1200 (landscape screen);
Known as 2MP (1K for short), it is often used for vertical screen display, and is mostly suitable for CR, DSA, digital gastrointestinal machine and PACS film reading workstation.
1536x2048 (portrait screen) /2048x 1536 (landscape screen);
It is called 3 million pixels (3MP), or 1.5 K for short. Commonly used for vertical screen display, mostly suitable for CCD-DR and PACS diagnostic workstations.
2048x2560 (vertical screen) /2560x2048 (horizontal screen);
Commonly known as 5 million pixels (5MP), referred to as 2 K, it is often used for vertical screen display, and is mostly suitable for flat-panel DR, breast machine and PACS diagnostic workstation;
The resolution of medical display is directly proportional to the price and the resolution of radiation equipment, and the corresponding equipment should be equipped with a display with corresponding resolution.
5. Certification:
Ordinary monitors include: environmental protection and electromagnetic certification.
Medical monitors have: not only environmental protection and electromagnetic related certification, but also medical industry certification, in order to enter the medical field and get legal recognition.
Taiwan Province Qilin medical liquid crystal display includes:
American FDA 5 10(K) certification, EU UL certification and China CCC certification.
6. Security:
Ordinary monitors include: protection board without LCD screen, built-in power supply and no special requirements.
Medical monitors include: due to the requirements of teaching and the habits of doctors, they are specially equipped with protective panels for LCD screens and special power supplies for medical use.
7. Graphics card:
Ordinary displays include: memory, speed and 3D indicator light;
Medical displays include: display mode, one card dual display, main and auxiliary display interchange, color-black and white conversion, 10bit gray output; Horizontal/vertical screen conversion;
3. How to choose and buy medical monitors:
Configure a set of image diagnosis workstations (CR, DR, CT, MRI) or PACS and RIS systems, and what aspects should be selected for medical display, as mentioned above:
(1) Select from the functions:
① Select a medical monitor capable of DICOM calibration and equip it with special calibration software;
② There is an optical sensor interface on the back of the monitor, which can be connected with an optical sensor for correction, otherwise it cannot be corrected.
② The medical display with constant brightness device is selected to ensure that the brightness of the display does not change with time, which can ensure the consistency and integrity of the system display.
(3) Due to the requirements of teaching and the habits of doctors, doctors at home and abroad are used to pointing at the film or display screen with pens to express their views on the specific details of the image. Liquid crystal materials are easily damaged. In order to adapt to the medical environment, display manufacturers will responsibly install LCD protection plates in the production process. Therefore, the optional medical display should have the protective plate of LCD screen.
(2) Select from the parameters:
① It is suggested that the diagnostic workstation should be equipped with 3MP and 5MP monitors, and there is no option of 3MP for breast machine and flat-panel DR. ..
② It is recommended to configure 2MP and 1MP monitors for observation and teaching workstations.
(3) Optional medical display, supporting special graphics card, and 10 bit output gray scale.
(3) From the aspect of authentication:
Only those who have passed CCC certification and FDA certification are recognized medical monitors in the medical field.