MQSA Quality Control Manual
Contents
1. is RECOMMENDED Otherwise the facilities may identify other ways of meeting MQSA requirements Applicable Models LMD DM50 LMD DM30 MQSA Quality Control Manual Contents LE EE 2 CONS sutil dan rovna o An loa 3 ENTENTE 5 Chapter 1 QC TESTS FOR THE RADIOLOGIC TECHNOLOGIST 1 UPPER CUI GUGM E 6 2 Intervals for PPOGEdUVES deefe eege 6 3 Cleaning Display EEN 7 dl ODECE so iia ds 7 3 2 EE E 7 3 3 Required Equipment aretes ai 7 de EELER egener 7 4 Viewing Conditions Check 8 41 AA boho r na rot kb rr o ra 8 42 SC ple A o nn 8 4 3 Required Equipment EE 8 de POC MUGS E 8 s eam ommawmennnneese 9 5 Image Quality Check SMPTE poatterm no non nn nn 10 51 AABJECHV eege 10 e E o ee errr ea ere 10 53 Requirsd EQUIDIMGIM perami bat brno id 10 54 MOCO ER and 10 Formi 2 SMPTE PANN EE 12 Chapter 2 QC TESTS FOR THE MEDICAL PHYSICIST Mo fc E 13 2 Intervals for Procedures ooooooon ts rr RE ER 13 3 Viewing Conditions Check and Setting A 14 Ne 14 32 8219 0 2 O ocioteca re cert enter ee are 14 3 3 Required Equipment ssv zir sn draci fin dn lana ra ou an klon Nan 14 Oe sal po JN A 14 Form 3 Viewing Condition Check and Setting sss liasisskastokva ovnni osohu r n b lo ha hora nn 15 MQSA Quality Control Manual 4 Display Calibration 16 A 1 OIC A da 16 42 E sesion 16 4 3 Required Equipment E 16 4A EIERE sme id 16 Form 4 Display CaM island k aceemeetenman ceeds 20 5 Image2. the form 3 in this manual Note This data form will be referred by the Radiologic Technologist as optimal during their daily VIEWING CONDITIONS CHECK on the page 8 5 Record the ambient light value on the form 3 in this manual 6 Draw a room layout sufficiently accurate on the form in this manual so that the Radiologic Technologist can reproduce the illumination conditions established as optimal during their daily VIEWING CONDITIONS CHECK 7 Post the form in the reading room so that the Radiologic Technologist can easily access and refer during their daily VIEWING CONDITIONS CHECK 8 Restore each display to its normal condition i e undo any measures taken in Step 3 4 1 to darken the display 14 MQSA Quality Control Manual Form 3 Viewing Conditions Check and Setting Annually Facility Room Date Room Description Display Positions Room Lights 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 Layout Note Draw sufficiently accurate for the Radiologic Technologist X Post this form in the reading room for the Radiologic Technologist s daily VIEWING CONDITIONS CHECK 15 MQSA Quality Control Manual 4 DISPLAY CALIBRATION 4 1 Objective To ensure that an accurate evaluation of the display will be conducted to perform an ac
3. MQSA Quality Control Manual MQSA Quality Control Manual for Monochrome Displays for Mammography Ver1 0 Applicable Models LMD DM50 LMD DM30 Sony Corporation MQSA Quality Control Manual MQSA Quality Control Manual for Monochrome Displays for Mammography Foreword Purpose of this Document This document is for Monochrome Displays for Mammography diagnostic displays to perform the Quality Control QC tests to meet the guidelines regulations of Mammography Quality Standards Act MQSA for the reading of the digital mammographic images This document describes the procedure for performing the Quality Control QC tests for Monochrome Displays for Mammography diagnostic displays based on the guidelines regulations of Mammography Quality Standards Act MQSA Scope of this Manual This document is referenced when conducting the Quality Control QC tests to Monochrome Displays for Mammography diagnostic displays based on the guidelines regulations of Mammography Quality Standards Act MQSA for the reading of the digital mammographic images through the full field digital mammography FFDAM system Regulatory Considerations For the facilities under the MQSA regulations application of this manual is MANDATORY Failure to follow these quality assurance procedures can result in loss of MQSA certification at facilities subject to the MQSA regulations For the facilities under the MQSA guidelines application of this manual
4. PC and display 4 4 Procedure 1 Review 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 future evaluation 2 Match the room configuration where each display is located to the one specified in the data form 3 Adjust the room configuration if the current reading room configuration differs from the one established as optimal in the data form For example if desk lights were specified to be turned off turn them off or if curtains were specified to be closed close them 4 Complete the record of the check on the form 1 in this manual MQSA Quality Control Manual Form 1 Daily Test Daily Facility Room Checked by E 112 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Die onallo Date 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 ISP onallo Display Serial 1 Display Serial 2 MQSA Quality Control Manual 5 IMAGE QUALITY CHECK SMPTE PATTERN 5 1 Objective To calibrate the displays as accurate as possible for the reading of mammographic images on Monochrome Displays for Mammography 5 2 Freguency Daily 9 3 Reguired Eguipment Monochrome Displays for Mammography display LMD DM50 or LMD DM 30 USB cable for communicating be
5. Quality Check SMPTE pattern ooooooonro oo rn 21 al DEE dee 21 5 2 E ac io 21 5 3 Required Equipment EE 21 BA EE HERR A EA E 5 SMPTE at A o 25 INS le Ur Le WE 26 MQSA Quality Control Manual INSTALLATION Connecting 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 calibration software Display Calibrator software and sensor driver into the workstation MQSA Quality Control Manual Chapter 1 QC TESTS FOR THE RADIOLOGIC TECHNOLOGIST 1 INTRODUCTION QC tests that are listed in this section are to provide the procedure for maintaining Monochrome Displays for Mammography diagnostic displays in its designed optimal quality conditions by keeping the displays 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 sections e Section 3 Cleaning Display e Section 4 Viewing Conditions Check e Section 5 Image Quality Check SMPTE pattern 2 INTERVALS FOR PROCEDURES The table below shows intervals for each procedure described in this manual Procedure Interval Cleaning Display Daily Viewing Condition Image Guality Check SMPTE pattern Daily MQSA Quality Control Manual 3 CLEANING DISPLAY 3 1 Objectiv
6. ale display function luminance uniformity and artifact noise for the reading of the mammographic images on Monochrome Displays for Mammography 5 2 Frequency Annually 5 3 Required Equipment Monochrome Displays for Mammography display LMD DM50 or LMD DM30 USB cable for communicating between PC and display Calibration software that comes with LMD KT10 Calibration Kit 5 4 Procedure Select LMD KT10 gt Calibration Software from the Start menu to start this software application 1 To display a test pattern select Test Patterns Tab The selected test pattern is displayed on the selected display Display Calibrator ll xj Sony LMD DM50 y Serial Number XXXXXXXX Sony LMD DM50 Serial Number 200000 Test Patterns Please click the test pattern to hide this screen Reen Auto Size Pattern 21 MQSA Quality Control Manual 2 The SMPTE pattern will appear View the display directly in front of the display The observer must be at least 50cm from the display screen Ol eee SMPTE Pattern Sony Corporation 3 Check that black in white and white in black levels are distinguishable and no artifacts noise are observed Record the result on the form 5 in this manual SMPTE Pattern Sony Corporation 22 MQSA Quality Control Manual 4 Check that each gray scale pattern and 0 5 8 95 100 contrasts are distinguishable and no arti
7. are at the center and on the corners of the SMPTE pattern without magnification h The streaking in and around the white and the black rectangles Video Characteristic 5 Records the results on the form 2 in this manual 11 MQSA Quality Control Manual Form 2 SMPTE Pattern Daily Location Name Address Display Serial 1 Display Serial 2 Test Display 1 Display 2 95 100 contrast 000 oa Gray level steps I E Boarders lines center J Tooo o Une ll JAlphanumerics LL Line pair images cene 000l Line pairimages come Jl gt Video Characteristics Pass or Fail Testing Person Name Signature Date 12 MQSA Quality Control Manual Chapter 2 QC TESTS FOR THE MEDICAL PHYSICIST 1 INTRODUCTION The QC tests listed in this section must be performed by the Medical Physicist to ensure that the diagnostic display of Monochrome Displays for Mammography is operating in its optimal and highest quality standard These tests also must be performed when a major change that possibly causes the change to its viewing quality and to its viewing performance such as the installation of a new diagnostic display of Monochrome Displays for Mammography the repair or replacement of a major component of the system or relocation of the diagnostic display happens QC tests for the diagnostic display are described in the following sections e Section 3 Viewing Conditions Check and Setting e Section 4 Display Calibrati
8. curate calibration for the reading of the mammographic images on Monochrome Displays for Mammography 4 2 Freguency Annually 4 3 Reguired Eguipment Monochrome Displays for Mammography display LMD DM50 or LMD DM30 USB cable for communicating between PC and display Calibration software that comes with LMD KT10 Calibration Kit Calibration sensor that comes with LMD KT10 Calibration Kit 4 4 Procedure 1 Select LMD KT10 gt Display Calibrator software from the Start menu of Windows Attach the calibration sensor to center of the displayed box as shown on the display to calibrate and click Calibration Display Calibrator Test Patterns Configuration Options Sony LMD DM50 Serial Number XXXXXXXX Current Settings Max Luminance 410 0 cd m Min Luminance 0 80 cd m DICOM GSDF 1 Max Luminance 410 0 cd m 2 Min Luminance 0 80 cd m 2 DICOM GSDF D Sony LMD DM50 Serial Number 000000 Current Settings Max Luminance 410 0 cd m Min Luminance 0 80 cd m DICOM GSDF 1 Max Luminance 410 0 cd m 2 Min Luminance 0 80 cd m 2 DICOM GSOF 16 MQSA Quality Control Manual 2 Usually you don t need to change calibration settings To start calibration click Start If you want to change settings click Change Settings Calibration Wizard xl Starting Calibration R Please check the settings below N Attach the calibration sensor
9. e To maintain the screen clean by keeping the display screen free from any objects dust finger print etc of the display of Monochrome Displays for Mammography 3 2 Frequency Daily 3 3 Required Equipment Lint free cloth 3 4 Procedure Note The cabinet is made of plastic and coated metal plate Do not apply thinner benzene or alcohol It could damage the plastic and or the coating could come off 1 When cleaning the display remove the AC adaptor from the display and the wall outlet for your safety 2 Dampen the lint free cloth with cleaning agent designed specifically for cleaning Computer Displays and remove the dust gently Finish up by wiping with the dry cloth 3 Clean the LCD panel protective filter and the surface periodically with a dampened soft cloth 4 Record the result on the form 1 in this manual Note Do not use Windex or household cleaners which can damage the Display s AR coating Note Be careful when handling the LCD panel protective filter Do not rub or hit with sharp or hard objects Do not press on the panel It could cause unevenness in luminance or damage the panel MQSA Quality Control Manual 4 VIEWING CONDITIONS CHECK 4 1 Objective To keep and maintain the optimal viewing conditions on Monochrome Displays for Mammography 4 2 Frequency Daily 4 3 Required Equipment Monochrome Displays for Mammography display LMD DM50 or LMD DM30 USB cable for communicating between
10. facts noise are observed Record the result on the form 5 in this manual Een gt Dem SMPTE Pattern Sony oration 5 Go back to the main screen of Test Patterns and select TG 18 UN80 If you dont see the main screen just click anywhere on the test pattern to recall it Sony LMD DM50 Serial Number Xxxxxxxx Test Patterns Please click the test pattern to hide this screen To display it click the test pattern again Sony LMD DM50 Serial Number 0000000 Emm E s MQSA Quality Control Manual 6 The TG 18 UN8C pattern will appear View the display directly in front of the display The observer must be at least 50cm from the display screen 7 Check that luminance non uniformity is not observed from the center to the edges Record the result on the form 5 in this manual 24 MQSA Quality Control Manual Form 5 SMPTE Pattern Annually Location Name Address Display Serial 1 Display Serial 2 Test Display 1 Display 2 BlackinWhite 8 White in Biaok Levers SMPTE LL Gray Scale Display Function SMPTE Jl 510 95 100 contrast SMPTE ST S Anita Noise SMPTE TCT SC Luminance Uniformity All White TG18 UN80 A A Pass or Fail Testing Person Name Signature Date 25 MQSA Quality Control Manual DEFINITION SMPTE Society of Motion Picture and Television Engineers Inc Display Guality Quality assurance software applicatio
11. in the center of the white patch and press Start Target Sony LMD DMSO 4000001 Display Configuration 1 Gamma DICOM GSDF Max Luminance 410 0 cd m Min Luminance 0 80 cd m Ambient Light 0 00 cdjm Change Settings Sensor X Rite ChromaS 45833 Elapsed time since the display is turned on 71 min lt Prev Start Cancel 3 If you select Calibration Settings at the previous step refer to the table below for detail information about each parameter and make necessary changes on the screen Click OK to return to the previous screen Calibration Settings X5 Calibration Settings Display Configuration f Max Luminance 410 0 cd m 2 Min Luminance 0 80 cd m 2 DICOM y Configuration Name Max Luminance 410 02 cd m Range 10 0 10000 0 Min Luminance 0 6027 cd m Range 0 00 2 00 Ambient Light 0 0 com Illuminance kx Measute Gamma DICOM GSDF Exponential ma Range 1 6 2 4 C Custom Browse Comment MQSA Quality Control Manual Setting Explanation Maximum Luminance The target brightest luminance Use the default value of 410 cd m2 or 500 cd m2 display s factory default unless otherwise necessary Important Maximum luminance is settable within the range specified on the wizard However due to luminance degradation caused by deterioration of the backlight the result may fall short of the target luminance Minim
12. n Controller FEDN Full Field Digital Mammography Chroma5 x rite calibration sensor Gent o O O Grayscale Standard Display Function One lux is the illuminance at the same point at a distance of 1 meter from the source One lumen uniformly distributed over one square foot of surface provides an illumination of 1 foot candle 26 MQSA Quality Control Manual Notes for the User s Manual No part of this manual whether partly or wholly may be reproduced or copied without authorization e The content of this manual is subject to change without notice e Although this manual has been prepared carefully please let us know if you find any errors omissions or ambiguous explanations Sony Corporation 1 7 1 Konan Minato ku Tokyo 108 0075 Japan 27
13. on e Section 5 Image Quality Check SMPTE pattern 2 INTERVALS FOR PROCEDURES The table below shows intervals for each procedure described in this manual Procedure Interval Viewing Condition Check and Setting Annually Display Calibration Annually Image Guality Check SMPTE Pattern Annually 13 MQSA Quality Control Manual 3 VIEWING CONDITIONS CHECK AND SETTING 3 1 Objective To keep and maintain the optimal viewing conditions on Monochrome Displays for Mammography 3 2 Freguency Annually 3 3 Reguired Eguipment Iluminance Meter 3 4 Procedure Before the measurement Turn on displays for at least 60 minutes before starting measurement e Reduce any lighting coming from other sources such as viewboxes over head or task lighting to the minimum and check that the ambient lighting is stable no flickering effect due to any of the lighting sources that are turned on 1 Make each display as dark as possible For example by minimizing the application windows or displaying a black flat field 2 Measure the illuminance Face the photometer away from the surface 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 the illuminance value under the limit if it exceeds 4 Fill out the display positions room lights desk lights etc established as optimal on
14. tween PC and display Calibration software that comes with LMD KT10 Calibration Kit 5 4 Procedure 1 Select Display Calibrator software from the Start menu to start this software application 2 Select the Test Patterns Tab Click the display icon to choose the display to test and click the SMPTE pattern 2 0 x Display Calibrator f Test Patterns Sony LMD DM50 A tease clck the test pattern to hide this screen To display Serial Number XXXXXXXX ip Sony LMD DM50 z Mi a _ mma Auto Sze wem Pattern 10 MQSA Quality Control Manual 3 Check the SMPTE pattern The SMPTE pattern will appear View the display directly in front of the display The observer must be at least 50cm from the display screen boc gt 0 SMPTE Pattern Sony Corporation 4 Visibility of the following features must be examined a The 0 5 contrast pattern b The 95 100 contrast pattern c The 0 100 each gray level step from the adjacent squares For 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 e No distortion and misalignment using the grids across the screen Linearity f The sharpness of the alphanumeric characters and that they are in focus g The high contrast line pair images each line in vertical and horizontal stripes in the squ
15. um Luminance The target darkest luminance Use the default value of E no E enea OO Ambient Light The effects of ambient light Enter the value only if it is known otherwise leave it as is Hint The current ambient light can be measured by clicking the Measure button Except for ME511L Gamma Setting Gamma setting should be DICOM GSDF Ba Recommended Comment Add a comment at the time of adjustment for later oo reference This can be left blank 4 Record the Gamma setting max luminance min luminance and ambient light optional value of each display set at on the Form 4 in this manual 18 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 Finishing Calibration Chant As Target dU L for a JNO Chan As Max Tolerant Limit 10 Chart As Min Tolerant Limit 10 Chart As JUL for a JNO 19 MQSA Quality Control Manual Form 4 Display Calibration Annually Location Name Address Display Serial 1 Display Serial 2 Test Display 1 Display 2 Gm em O Gamma Ambient Light Pass or Fail Testing Person Name Signature Date 20 MQSA Quality Control Manual 5 IMAGE QUALITY CHECK SMPTE PATTERN 5 1 Objective To ensure that the display calibration has been performed properly by the evaluation of the black white levels gray sc
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