background image

- 16 -

TOTOKU ELECTRIC CO., LTD.

MQSA Quality Control Manual

4  DISPLAY CALIBRATION

4.1 Objective

To ensure that an accurate evaluation of the display monitors will be conducted to 

perform an accurate calibration for the reading of the mammographic images on 

Monochrome Monitors for Mammography

4.2 Frequency

Annually

4.3 Required Equipment

Monochrome Monitors for Mammography, display monitor

Serial cable for communicating between PC and display monitor (for ME511L) 

USB cable for communicating between PC and display monitor (for other models)

Calibration software (Medivisor Nx)

Calibration sensor (Chroma5)

 

4.4 Procedure

1.    Select “TOTOKU Medivisor Nx” > “ Medivisor Nx”  from the Start menu of

 

      Windows. Attach the calibration sensor properly on the monitor to calibrate and

 

      click “Calibration”.

 

     

 

 

Summary of Contents for ME511L

Page 1: ...Version 3 1 Applicable Models ME511L ME551i2 MS31i2 MS33i2 MS51i2 MS53i2...

Page 2: ...t MQSA Scope of this Manual This document is referenced when conducting the Quality Control QC tests to Monochrome Monitors for Mammography diagnostic display monitors based on the guidelines regulati...

Page 3: ...ent 8 4 4 Procedure 8 Form 1 Daily Test 9 5 Image Quality Check SMPTE pattern 10 5 1 Objective 10 5 2 Frequency 10 5 3 Required Equipment 10 5 4 Procedure 10 Form 2 SMPTE Pattern 12 Chapter 2 QC TESTS...

Page 4: ...TOTOKU Electric Co Ltd All rights reserved MQSA Quality Control Manual 4 TOTOKU ELECTRIC CO LTD 5 Image Quality Check SMPTE pattern 21 5 1 Objective 21 5 2 Frequency 21 5 3 Required Equipment 21 5 4 P...

Page 5: ...necting the cables Follow the instructions in the display manual to properly connect the communication cable supplied with the display Installing calibration software and sensor driver Install the cal...

Page 6: ...display monitors free of any image quality deterioration and by performing the regular viewing conditions and image quality checks QC tests for the diagnostic display are described in the following se...

Page 7: ...the coating could come off An optional cleaning kit is recommended to clean the panel surface protective filter 1 When cleaning the display monitor remove the AC adaptor from the display monitor and...

Page 8: ...the data form Form 3 Viewing Conditions Check and Setting on P15 completed by the Medical Physicist during the most recent evaluation posted in the reading room Refer this form as optimal during your...

Page 9: ...y Test Daily Facility Room Checked by Year Month Date 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Initial Cleaning Display Viewing Conditions Date 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Initial Clean...

Page 10: ...Equipment Monochrome Monitors for Mammography display monitor Serial cable for communicating between PC and display monitor for ME511L USB cable for communicating between PC and display monitor for ot...

Page 11: ...example the 0 10 square or the 90 100 square d The borders and lines of the pattern and that they are straight and the pattern is in the active area of the display monitor e No distortion and misalign...

Page 12: ...on Name Address Monitor Serial 1 Monitor Serial 2 Test Display 1 Display 2 0 5 contrast 95 100 contrast Gray level steps Boarders lines centering Linearity Alphanumerics Line pair images center Line p...

Page 13: ...performance such as the installation of a new diagnostic display monitor of Monochrome Monitors for Mammography the repair or replacement of a major component of the system or relocation of the diagno...

Page 14: ...ce of the display screen during the illuminance measurement 3 Check that the measured illuminance value does not exceed 20 lux Adjust the room ambient light and or the room configuration to maintain t...

Page 15: ...hts Desk Lights Others Ambient Light value Note Confirmation of this value is not part of the daily check by the Radiologist Technologist Important The ambient light level must not exceed 20 lux Room...

Page 16: ...y 4 2 Frequency Annually 4 3 Required Equipment Monochrome Monitors for Mammography display monitor Serial cable for communicating between PC and display monitor for ME511L USB cable for communicating...

Page 17: ...ettings To start calibration click Start If you want to change settings click Change Settings 3 If you select Calibration Settings at the previous step refer to the table below for detail information...

Page 18: ...target luminance Minimum Luminance The target darkest luminance Use the default value of 0 8 cd m2 unless otherwise necessary Ambient Light The effects of ambient light Enter the value only if it is k...

Page 19: ...19 TOTOKU ELECTRIC CO LTD MQSA Quality Control Manual 5 When calibration is completed the Finishing Calibration window is displayed with the results Click Show Details to display graphical outputs...

Page 20: ...ocation Name Address Monitor Serial 1 Monitor Serial 2 Test Display 1 Display 2 Setting Result Setting Result Configuration Gamma Max Luminance cd m2 cd m2 cd m2 cd m2 Min Luminance cd m2 cd m2 cd m2...

Reviews: