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Chart 8 — IMAGE QUALITY WITH BREAST MIMICKING PHANTOM(This example chart may be suitable for scoring the ACR accreditation phantom)Phantom usedCR cassette size (if applicable)CR cassette ID (if applicable)Previous Image Current Image ChangeDateOperation mode (manual, semiautomatic, automatic)Target–filterkVp settingAEC detector positionDensity control (if applicable)mAsExposure index (CR)Number of fibres seenNumber of fibre-like artefactsFibres seen after deductionNumber of micro-calc. groups seenNumber of micro-like artefactsSpeck groups after deductionNumber of masses seenNumber of mass-like artefactsMasses seen after deductionTolerance*Fibres: ≥4; micro-calcifications: ≥3; masses: ≥3Pass (Y/N)?Change in fibres, microcalcifications, masses £0.5Pass (Y/N)?* The tolerances should almost certainly be more stringent for digital than for screen film mammography.Comments:Note: Use ALT+ENTER for a new line in comments box162
Chart 9 — SAFETY AND FUNCTION CHECKLIST OF EXAMINATION ROOM AND EQUIPMENTFacility: Room/Unit:Manufacturer:Model:Year:Checkmark () = Pass/Adequate; = Fail; Initial when completeYearMonth Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov DecDateInitialsRoom temperatureNo loose partsCleanlinessNo cracks in paddleAutomatic compression releaseCompression release on power failureOverall integrityHoses and cabling unobstructedAngulation indicatorLocks (all)Field lightSmoothness of motionBreast thickness indicator accuracyFace guard integrityPanel switches/lights/metersTechnique chartsTime and date on images correctFacility ID on images correctOperator radiation shieldCleaning solutionIf a failure of a test listed above is noted, document corrective action:163
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X raysdel matrixCs scintillatorLine
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QUALITY ASSURANCE PROGRAMMEFOR DIGI
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IAEA HUMAN HEALTH SERIES No. 17QUAL
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FOREWORDThe application of radiatio
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An effective QA programme is necess
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The Integrating the Healthcare Ente
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technology. Systems containing othe
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X raysTop electrodea-Se layerCharge
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dose received by inhomogeneous real
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2.3.8.1. Soft copy displayFlat pane
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3. ELEMENTS OF HIGH QUALITY MAMMOGR
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— The ability to mask edges of ma
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Disposal orsaleNew facility(start h
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4.2.3. Radiographer (mammography te
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5.2.2. Electronic versus geometric
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To allow full utilization of the di
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5.7. ARTEFACTSWhile the incidence o
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FIG. 10. Detector crystallization.
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FIG. 13. A more subtle example of a
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FIG. 16. An example of poor collima
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7. RADIOGRAPHER’S QUALITY CONTROL
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7.1. DAILY TESTS7.1.1. Monitor insp
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7.1.3. Daily flat field phantom ima
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7.1.4. Visual inspection for artefa
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7.1.5. Laser printer sensitometry7.
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7.1.6. Image plate erasure (CR syst
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FIG. 19. Modified TG18-QC pattern w
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FIG. 21. Radiologist workstation wi
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7.2.1.6. Time frame for corrective
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7.2.3. Weekly quality control test
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Note: It is not necessary to view t
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TABLE 7. TOLERANCES FOR IMAGING WEE
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7.2.4.4. Interpretation of results
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7.3.1.5. Recommendations and correc
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artefacts are typically best seen w
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7.3.3.5. Recommendations and correc
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7.4.1.3. Methodology(1) Annotate th
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RECORD OF DIGITAL MAMMOGRAPHY REPEA
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(3) Including examinations of at le
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7.5. SEMI-ANNUAL TESTS7.5.1. Comput
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8. MEDICAL PHYSICIST’S QUALITY CO
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8.1. NOTE ON IMAGE NAMING CONVENTIO
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(16) On any randomly selected patie
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FIG. 30. Positioning of bathroom sc
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(6) The target, filter, kV, grid, d
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(2) Stack the 20 and 25 mm PMMA sla
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TABLE 13. ACCEPTABLE AND ACHIEVABLE
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8.5. DETECTOR PERFORMANCE8.5.1. Bas
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8.5.2. Detector response and noise8
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the service engineer responsible fo
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(13) Using the annotation tool on t
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Breast supportPMMA slabBreast suppo
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(10) Place the thinner test object
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8.6. EVALUATION OF SYSTEM RESOLUTIO
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TABLE 17. ACCEPTABLE FREQUENCIES AT
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8.7. X RAY EQUIPMENT CHARACTERISTIC
Page 123 and 124: 8.7.2. Incident air kerma at the en
Page 125 and 126: 8.8. DOSIMETRY8.8.1. Mean glandular
Page 127 and 128: TABLE 21. ACCEPTABLE AND ACHIEVABLE
Page 129 and 130: FIG. 34. Suggested layout for ruler
Page 131 and 132: 8.10. IMAGE DISPLAY QUALITYThe accu
Page 133 and 134: FIG. 35. Modified TG18-QC test patt
Page 135 and 136: 8.10.1.5. Interpretation of results
Page 137 and 138: 8.10.2. Monitor luminance response
Page 139 and 140: TABLE 22. MONITOR PERFORMANCE TOLER
Page 141 and 142: FIG. 38. Measurement of illuminatio
Page 143 and 144: 8.11. LASER PRINTER8.11.1. Laser pr
Page 145 and 146: 8.11.1.5. Recommendations and corre
Page 147: 8.12.1.4. Interpretation of results
Page 150 and 151: iopsies are performed, a sink is of
Page 152 and 153: Appendix IISPECIFICATIONS OF TEST E
Page 154 and 155: TABLE 24. SPECIFICATIONS OF TEST EQ
Page 156 and 157: FIG. 40. Image acquired with a unif
Page 158 and 159: FIG. 43. The left hand image is par
Page 160 and 161: FIG. 45. A TG18-QC test pattern dis
Page 162 and 163: [29] ALSAGER, A., YOUNG, K.C., ODUK
Page 165 and 166: Annex IRADIOGRAPHER DATA COLLECTION
Page 167 and 168: Chart 2 — DIGITAL MAMMOGRAPHY (DM
Page 169 and 170: Chart 4 LASER PRINTER SENSITOMETRY
Page 171 and 172: Chart 6 — WEEKLY DISPLAY MONITOR
Page 173: Chart 7(b) WEEKLY QC TEST OBJECT:
Page 177 and 178: Chart 11 — LASER PRINTER ARTEFACT
Page 179 and 180: Chart 13(a) — RECORD OF DIGITAL M
Page 181 and 182: Chart 14 — CR PLATE SENSITIVITY M
Page 183 and 184: Annex IIITHE MAMMOGRAPHY EXTRACTThe
Page 185 and 186: GLOSSARYair kerma. The energy depos
Page 187 and 188: image quality. The overall merit of
Page 189: CONTRIBUTORS TO DRAFTING AND REVIEW
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