Eizo Digital Mammography Monitor User Manual

Selecting the Optimum  
Digital Mammography Monitor  
Requirement  
High-Resolution  
High resolutions are required to display the correct  
“information volume” of a digital mammography image.  
1
High-Definition & High-Density  
For the detection of mammary gland disorders which  
Requirement  
appear as “distortion,” the monitor needs this required  
2
performance in order to display the subtle structures.  
Multi-Grayscale  
For the detection of small tumors which appear as delicate  
Requirement  
“density” differences, the monitor needs the correct display  
3
of extremely subtle grayscale shadings.  
Image Sharpness  
For detection of subtle masses and calcifications, the  
Requirement  
monitor needs to display the outlines of the images with a  
4
high degree of sharpness.  
Brightness Uniformity  
For correct luminance display of delicate “density”  
Requirement  
differences, the monitor needs uniformity in brightness  
5
across the entire screen.  
DICOM Part 14 Compliance  
with Quality Control Software  
For unified image display between multiple monitors, the monitor is  
required to adjust the characteristics to the grayscale standard DICOM  
Part 14 through calibration.  
Requirement  
6
Requirement  
Simple Quality Control Procedures  
Quality characteristics gradually change over time and therefore in order to  
maintain a consistent display, the monitor needs to be quality-controllable.  
7
1
2
MONOCHROME  
LCD MONITOR  
Featuringg high-resolution, hiigh-defiinition and muulti-graysscale, thee RadiForcce GS520 is  
designed specifically for diggiittaall mmaammmmooggrraapphhyy wwiitthh aa cchhooiiccee ooff ddiissttiinnccttiivvee ggllaarree ppaanneell ttoo  
meet diversified environment usage.  
Backlight Saver  
High-Resolution for Delicate Grayscale Shadings  
12-Bit Simultaneous Grayscale Display  
DUE for Brightness Uniformity  
With ScreenManager Pro for Medical utility software  
installed, the Backlight Saver function allows for the monitor’s  
backlight to turn off when the screen saver is activated and  
the monitor’s backlight to turn on when the computer comes  
out of the screen saver mode. This function helps to reduce  
power consumption when the monitor is used for a prolonged  
period of time.  
When selecting a monitor, it’s important to consider the “information  
volume” of the medical images to be displayed.  
Along with EIZO's new frame rate control technology  
(patent pending), 4,096 (12-bit) grayscale tones can be  
displayed simultaneously from an abundant palette of  
Requirement  
To sustain image consistency, brightness uniformity is  
required for medical imaging monitors. However, unified  
luminance of the backlight is difficult to attain due to the  
Requirement  
3
5
1914  
1760  
13,771 tones for high-definition digital mammography.  
characteristics of LCD monitors. The Digital Uniformity Equalizer  
(DUE) function provides optimum backlight luminance uniformity.  
1000  
Medical  
Images  
(Example)  
12-bit graphics board and 12-bit viewer software needed for 12-bit display.  
512  
Without DUE  
With DUE  
D S A  
1280  
C T  
Chest CR  
Mammography  
100%  
100%  
1536  
2048  
1200  
Regular Use  
Cuts power consumption  
by 11%  
2 hours  
70%  
70%  
Monitor  
Resolution  
lower  
lower  
8bit  
256 Tones Image  
4,096 Tones Image  
12 bit  
18 hours / day  
16 hours / day  
Backlights  
switch off  
automatically  
=
=
Input Level 80% 204/255  
CCD Camera  
Brightness Map  
Input Level 80% 204/255  
CCD Camera  
Brightness Map  
Distinctive Glare Panel  
“Information volume” of a digital mammography image  
should exceed 5 million pixels. When a lower resolution  
monitor displays this “information volume,” the monitor  
Requirement  
Calibration Mode Selection  
Many current monitors use anti-glare panels, which have a waffled  
surface to diffuse the reflection of surrounding light. However, this  
also diffuses the light from the monitor’s backlight, which affects the  
outline of an image, causing a viewing strain on the observer. With a  
distinctive glare panel, there is no diffused reflection by the waffled  
surface, and the outline of the image is displayed more clearly.  
Therefore, the subtle images such as calcification and masses will be  
easier to observe reducing the strain on the observer.  
Selectable with the front panel buttons, the CAL Switch function  
allows for various calibration modes of different modalities such as  
digital mammography, CR, and CT images. Furthermore, with  
ScreenManager Pro for Medical installed, auto mode settings can be  
made with the Auto CAL Switch function.   
1
Compatibility with Various Graphics Boards  
stretches the information forcing the mosaic to appear as shadings.  
With a 2048 x 2560 resolution or 5.24 million pixels, the stretching  
effect is minimized and the mosaic becomes suitable for rendering  
subtle masses and calcifications, within the mammography image.  
Supports various input signals for compatibility with a wide  
range of graphics boards so the user can select the board  
according to budget and performance requirements. This  
includes single link and dual link signals, as well as packed-  
pixel signal for users requiring 12-bit or 10-bit simultaneous  
display.  
Mammo Mode  
CR Mode  
CT/MRI Mode  
2048  
Please note that the reflection of surrounding light may increase when used in a bright environment.  
Available with either a glare panel (GS520-CLG, GS520-BLG) or anti-glare panel (GS520-CL, GS520-BL).  
5.24million  
pixels  
Incoming  
Light  
Light from Backlight  
Light from Backlight  
Incoming  
Light  
Change modes  
with one touch. Brightness : 500 cd/m2  
Enlarged Image  
Brightness : 450 cd/m2  
Grayscale : DICOM Part 14 Grayscale : DICOM Part 14 Grayscale : γ=2.2  
Brightness : 350 cd/m2  
1536  
Reflections  
Reflections  
Digital  
Mammography  
Full 5-Year Warranty  
3.14 million  
pixels  
Brightness Stabilization  
Displaying  
only 72%  
EIZO and its authorized distributors offer a five-year  
limited warranty for RadiForce GS520.  
Anti-Glare Panel  
Glare Panel  
At startup or upon wakeup, the EIZO patented drift correction  
function quickly stabilizes the brightness level. In addition, a sensor  
measures the backlight brightness and compensates for brightness  
fluctuations caused by the ambient temperature and the passage of time.  
Enlarged Image  
Sharper Resolution for Clearer Image Outline  
High-Definition and High-Density with Minute Pixels  
Brightness Stability Within Usage Time Guaranteed  
MTF (Modulation Transfer Function) is a parameter to  
define the display sharpness and resolution of a monitor  
panel. The glare panel has better MTF characteristics than  
Requirement  
0.165mm pixel size is the smallest pixel size among current  
EIZO medical monitors providing high-definition and high-  
density display without shadings appearing granular.  
Requirement  
This brightness stabilization function is EIZO patented technology (Japan patent numbers 3171808 and  
3193315, US patent number 6188380).  
EIZO's confidence in its product quality extends to brightness  
stability which is also covered during the usage time specified in the  
warranty.  
4
2
Brightness (cd/m2)  
the anti-glare panel meaning the  
glare panel can be expected to  
display the outline of a detailed  
image more sharply.  
Provided by Anjo Kosei Hospital  
Other Manufacturer's Monitor  
with Drift Correction  
1.2  
Glare Panel  
Anti-Glare Panel  
1
0.249 mm  
0.207 mm  
0.165 mm  
Main Board  
0.8  
0.6  
0.4  
0.2  
0
Same Brightness !  
EIZO RadiForce Monitors  
with Drift Correction  
Backlight  
Sensor  
Pixel Size Comparison  
Hole for  
Light  
Transmission  
0.0  
0.5  
1.0  
1.5  
2.0  
2.5  
3.0 3.5  
Seconds  
Drift Correction Comparison  
Backside  
of Panel  
Spatial Frequency (Line pairs/mm)  
3
4
Displaying the Optimum Digital Mammography Image  
Accessories  
EIZO offers all the necessary components for correct digital mammography image display.  
Dual Height Adjustable Stand  
Quality Control Sensor  
Digital Mammography Monitor  
Mount two panels in either portrait or landscape  
orientation.  
An opttion of clear baase and  
blue base backlights are available.  
Panel Protector  
Paired monitors which provides the same  
color andd grayscalle for twoo mmonitors  
bundlled as aa pair in onee box,, alsoo aavailable.  
Protect against scratches and dust with high light  
transmission panel.  
Once attached to the top of the monitor the  
Clip-On Swing Sensor G1 can remain in place  
and is ready for use. This saves the time and  
trouble of attaching  
Monitor Cleaning Kit  
and removing it  
whenperforming  
quality control tasks.  
Keep your screen free from dust and fingerprints with  
this screen cleaner kit. Includes pump spray and cloth.  
(Bundled with GS520-CLG and GS520-BLG.)  
Standard Configuration  
Quality Control Tool  
Quality Control of Digital Mammography Monitor  
As with the use of film mammography, image quality testing of  
the monitor at installation and regularly during use should be  
carried out. This ensures that the monitor maintains a consistent  
display of quality digital mammography.  
EIZO's easy-to-use RadiCS quality control  
software performs precise calibration conforming  
to DICOM Part 14 and enables quality control  
complying with ACR Practice Guideline and  
other QC standard for digital mammography  
monitors.  
ACR “Practice Guideline for Determinants of Image  
 Quality in Digital Mammography”  
A guideline established by the American College of Radiology  
(ACR) in cooperation with the American Association of  
Physicists in Medicine (AAPM), Radiological Society of North  
America (RSNA), and Society for Imaging Informatics in  
Medicine (SIIM).  
EUREF “European Guidelines for Quality Assurance  
in Breast Cancer Screening and Diagnosis”  
High-Performance Graphics Board  
Four options are available:  
A standard issued by the European Commission in  
cooperation with the European Reference Organization for  
Quality Assured Breast Screening and Diagnostic Services  
(EUREF), and European Breast Cancer Network (EBCN),  
European Society of Mastology (EUSOMA).  
PAS 1054  
Bit 12-bit /10-bit / 8-bit  
Compatible Operating System Windows XP / 2000 Professional  
Frame Buffer Memory 128 MB  
Bus Interface PCI 32-bit (33 MHz / 66 MHz)  
Maximum Disply Resolutions 2048 x 2560  
Output Terminals DVI-I x 2  
Dot Clock Up to 148 MHz  
Scanning Frequency (H, V) 103.9 kHz  
50 Hz  
10-bit / 8-bit  
Windows XP / 2000 Professional  
256 MB  
PCI 32-bit (33 MHz) / 64-bit (66 MHz)  
2048 x 2560  
DVI-I x 2  
Up to 148 MHz  
103.9 kHz  
50 Hz  
8-bit  
Windows XP  
1 GB  
PCI Express x 16  
2048 x 2560  
DVI-D x 2  
214.25 MHz  
131 kHz  
8-bit  
Windows XP  
256 MB  
PCI Express x 16 / x 1  
2048 x 2560  
DVI-D x 2  
162 MHz  
75 kHz  
60 Hz  
22 watts  
“ Requirements and Testing of Digital Mammography  
Equipment ” established by the Normenausschusses  
Radiologie (DIN NAR) in cooperation with the Deutschen  
Röntgengesellschaft (DRG) and others. In line with the  
QS-RL (Qualitätssicherungs-Richtlinie) quality assurance  
ordinance, it is mandatory in Germany to refer to this  
standard when conducting monitor quality assurance.  
50 Hz  
75 watts  
Maximum Power Consumption 16.8 watts  
40 watts  
5
6
54 cm 21.3"  
Monochrome LCD Monitor  
Model Variations  
GS520-CLG: Clear Base with Glare Panel  
GS520-BLG: Blue Base with Glare Panel  
GS520-CL: Clear Base  
GS520-BL: Blue Base  
Cabinet Color  
Black  
Panel  
TFT Monochrome LCD Panel (IPS)  
337.9 x 422.4 mm  
Diagonal: 540 mm  
2048 x 2560  
Active Display Size (H x V)  
Viewable Image Size  
Native Resolution  
Pixel Pitch  
0.165 x 0.165 mm  
4,096 from a palette of 13,771 tones  
170°, 170°  
Grayscale Tones  
Viewing Angles (H, V)  
Brightness  
700 cd/m2 (typical)  
500 cd/m2  
Recommended Brightness  
for Calibration  
Contrast Ratio  
800:1 (typical)  
Response Time  
100 ms (typical)  
Scanning Frequency (H, V)  
31-135 kHz, 19-51 Hz  
Frame synchronous mode: 49 - 51 Hz  
Dot Clock  
300 MHz  
Input Signals  
DVI Standard 1.0  
DVI-D 24 pin  
Input Terminal  
USB Ports  
1 upstream, 2 downstream  
Standard Rev. 2.0  
AC 100-120 V, 200-240 V: 50 / 60 Hz  
90 watts  
USB Standard  
Power Requirements  
Power Consumption  
Power Save Mode  
Sensor  
Less than 1.2 watts  
Backlight Sensor  
DVI DMPM  
Power Management  
OSD Languages  
English, French, German, Italian, Japanese,  
Simplified Chinese, Spanish, Swedish,  
Traditional Chinese  
Net Weight  
With Stand: 9.6 kg  
Without Stand: 6.6 kg  
Hole Spacing  
VESA standard (100 x 100 mm)  
Certifications and Standards  
CE (Medical Device Directive), TÜV/GM  
(EN60601-1), cTÜVus (UL60601-1, CSA C22.2  
No. 601-1), CB (IEC60601-1), VCCI-B, FCC-B,  
Canadian ICES-003-B, c-Tick, FDA 510(k) for  
Mammography and General Radiography,  
RoHS  
EIZO NANAO CORPORATION supports Pink Ribbon activities.  
Supplied Accessories  
AC power cord, user's manual, signal cable  
(DVI-D ~ DVI-D), USB cable, EIZO LCD Utility  
Disk (RadiCS LE, ScreenManager Pro for  
Medical software), ScreenCleaner (GS520-CLG,  
GS520-BLG only), warranty card  
[
]
Dimensions Unit:mm  
388  
340  
40°  
88  
61.5  
Height Adjustment 82  
90°  
°
°
35  
35  
Copyright © 2008 EIZO NANAO CORPORATION. All rights reserved.  
17.6  
325.5  
208.5  
(
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080202 Printed in Japan, 2, 2008, 3.5K  

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