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Quality Assurance Program
Norland equipment is configured to assist facilities in establishing an effective Quality Assurance
Program.
Precision and accuracy of bone mineral density assessments are dependent on an effective Quality
Assurance Program.
Norland strongly recommends performing patient scans on the Norland system only after successful
completion of the daily Quality Assurance calibration. The calibration compensates for spectral shifts
in the x-ray source, slight differences in the interface circuitry and other factors.
Chapter 4, Basic Operation, contains a step by step procedure for performing the daily system quality assur-
ance calibrations. Refer to the "Daily Calibration Procedure" on page 4-6 for details. The procedure consists of:
scanner stabilization
parts damage check and positioning
a scan of the QA Calibration Standard
a scan of the QC Phantom
diagnostic tests
and calibration verification
Once the calibration routine is initiated, it proceeds automatically until all data is collected and the results of the
QA Calibration Standard and the QC Phantom scans are displayed.
QA results should be printed and kept in a paper log file for quick reference.
Norland software will automatically display an Alert pop-up dialog box when more than 24 hours has elapsed
since the last calibration. Norland strongly recommends performing a daily calibration before scanning patients.
Sample pop-up:
Figure 2-3:
QA Alert pop-up
It is not necessary to calibrate the system on a day that the Norland Bone Densitometer will not be used to
scan patients.
Patient Comparison
Patient scan results are compared to reference populations or to previous scans for comparisons for diagnosis.
Much has been written on the use of bone mineral analysis techniques.
a b c
a
Ross, P. D., Davis, J. W. Vogel, J. M., and Wasnich, R. D.: “A Critical Review of Bone Mass and the Risk of Fractures in Osteoporosis”.
Cal-
cified Tissue International
46:149-161, 1990.
b
Melton III, J. L., Eddy, D. M., Johnson Jr., C. C.: “Screening for Osteoporosis”.
Annals of Internal Medicine
. 112:516-528, 1990.
c
“Assessment of Fracture Risk and its Application for Postmenopausal Osteoporosis”,
WHO Technical Reports Series, No. 843
.
Operator's Guide
437D140 Rev. I
2-8
General Information
Содержание Elite 437A150
Страница 1: ...DXA Bone Densitometer Operator s Guide Elite Model 437A150 Operator s Guide 437D140 Rev I...
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Страница 41: ...Operator s Guide 437D140 Rev I General Information 2 19 Figure 2 6 Page 2 of the Bone Exam Report...
Страница 45: ...Operator s Guide 437D140 Rev I General Information 2 23 Figure 2 10 Page 2 of the Patient Letter...
Страница 47: ...Operator s Guide 437D140 Rev I General Information 2 25 Figure 2 12 Page 2 of the Referral Letter...
Страница 49: ...Operator s Guide 437D140 Rev I General Information 2 27 Figure 2 14 Page 2 of the Ten Year Fracture Risk Report...
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Страница 66: ...11 Click Operator s Guide 437D140 Rev I 3 10 Installation and Setup...
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Страница 124: ...Sample Printed QA Results Report Operator s Guide 437D140 Rev I 4 16 Basic Operation...
Страница 137: ...Operator s Guide 437D140 Rev I Basic Operation 4 29...
Страница 165: ...Operator s Guide 437D140 Rev I Scanning Whole Body 5 23 Figure 5 6 Page 2 of the Bone Exam Report...
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Страница 176: ...Figure 6 2 Page 2 of the Bone Exam Report Operator s Guide 437D140 Rev I 6 10 Soft Tissue Composition...
Страница 178: ...Figure 6 4 Page 2 of the Body Composition Report Operator s Guide 437D140 Rev I 6 12 Soft Tissue Composition...
Страница 198: ...Operator s Guide 437D140 Rev I 7 20 Scanning AP Spine...
Страница 205: ...Operator s Guide 437D140 Rev I Scanning AP Spine 7 27 Figure 7 5 Page 2 of the Bone Exam Report...
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Страница 238: ...Figure 8 6 Page 2 of the Bone Exam Report Operator s Guide 437D140 Rev I 8 32 Scanning Hip...
Страница 289: ...Operator s Guide 437D140 Rev I Scanning Lateral Spine 10 29 Figure 10 6 Page 2 of the Bone Exam Report...
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Страница 301: ...Operator s Guide 437D140 Rev I Additional Techniques 11 11 6 The dialog box closes and the file is sent...
Страница 326: ...Operator s Guide 437D140 Rev I 11 36 Additional Techniques...
Страница 378: ...Figure 12 2 Page 1 of the Ten Year Fracture Risk Report Operator s Guide 437D140 Rev I 12 10 Ten Year Fracture Risk...
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Страница 446: ...Label Locations continued Operator s Guide 437D140 Rev I 17 18 Technical Reference...
Страница 448: ...Scanner Labels continued Operator s Guide 437D140 Rev I 17 20 Technical Reference...
Страница 449: ...Operator s Guide 437D140 Rev I Technical Reference 17 21 Scanner Labels continued...
Страница 457: ...Operator s Guide 437D140 Rev I Reference Data Sets 18 7 Excerpt from Calcified Tissue International...
Страница 458: ...Excerpt from the Journal of Bone and Mineral Research Operator s Guide 437D140 Rev I 18 8 Reference Data Sets...
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