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Lunar DPX-IQ User Manual

Lunar DPX-IQ
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DPX-IQ
â„¢
Operator’s Manual
Software Version: 4.6
Documentation Version: 1/99C
Part Number: 5970
LUNAR Corporate Headquarters
313 West Beltline Highway
Madison, WI 53713 USA
+1 (800) 445-8627
+1 (608) 274-2663
+1 (608) 274-5374 (Fax)
LUNAR Europe N.V.
avenue R. Vandendriessche, 18/9
1150 Brussels
Belgium
+32-2-7770910
+32-2-7791039 (Fax)
LUNAR GmbH
Horbeller Strasse 33
D-50858 Köln
Germany
+49-2234-954590
+49-2234-273153 (Fax)
LUNAR France
1, avenue d’Aix-en-Provence
13410 Lambesc
France
+33-4-42 57 17 97
+33-4-42 57 17 99 (Fax)
LUNAR Asia/Pacific
54 Taylor Street
West Pennant Hills, NSW 2125
Australia
+61-2-9873-1091
+61-2-9871-3758 (Fax)
Internet Address: http://www.lunarcorp.com

Table of Contents

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Lunar DPX-IQ Specifications

General IconGeneral
BrandLunar
ModelDPX-IQ
CategoryMedical Equipment
LanguageEnglish

Summary

Software License Agreement

I. Software License Grant

Grants a non-exclusive, non-transferable license to use the computer software.

II. Title and Ownership

States that the license is not a sale and title/copyrights remain with LUNAR.

III. Agreement Term and Termination

Defines the duration of the agreement and conditions for termination.

IV. Software Limited Warranty

Outlines LUNAR's warranty for the software's performance and limitations.

General Product Warranty and Information

Product Warranty Conformance and Limitations

Covers warranty period, system compatibility, and limitations of liability.

DPX-IQ Densitometer Purpose and Scan Variables

Describes the densitometer's purpose and factors affecting scan results.

Training Requirements and DEXA Cautions

Details training requirements and cautions for DEXA determination accuracy.

Daily Precautions and Manual Usage

Operational and Safety Guidelines

Lists essential safety and operational guidelines before and during scanner use.

Emergency Stop and Manual Structure

Instructs on proper use of emergency stop and the manual's chapter organization.

Declaration of Conformity

Manufacturer and Product Details

Identifies manufacturer, representative, and product description for conformity.

Conformity to European Directive

Declares product conformance to European Council Directive 93/42/EEC.

Chapter 1: System Overview

1.1 Scan Table Assembly

Details the components of the scan table assembly and warns against servicing.

1.2 System Safety Precautions

Provides crucial safety precautions for operating the DPX-IQ scanner.

Scan Table, Arm, and Control Panel Descriptions

Explains the function of the scan table, arm, and control panel components.

Patient Safety: Pinch Points and Laser Hazards

Addresses patient safety concerns, including pinch points and laser hazards.

Radiation Safety Overview

Details types of radiation exposure and safety measures.

Scan Modes and Exposure Data

Provides a table of scan modes with kV, current, area, time, and exposure data.

System Status Symbols and Laser Caution

Explains system status symbols and laser caution labels.

Equipment Labels and Definitions

Details Tube Head, System, Power Supply, Controller, and Collimator labels.

Emergency Stop and Failsafe Circuit Operations

Details emergency stop button usage and the failsafe circuit's function.

1.2 Registration Requirements

Mentions requirements for registering diagnostic x-ray equipment.

Facilities and Electrical Safety

Covers facility requirements and electrical safety compliance with IEC standards.

Scattered Radiation and Isodose Diagrams

Discusses scattered radiation and presents isodose diagrams.

Figure 1-4: Isodose Diagram

Shows radiation dose distribution diagrams for the DPX-IQ scanner.

1.3 System Maintenance Procedures

Provides instructions for cleaning the scan table and archiving scan files.

Emergency Stop Button Test Procedure

Details the monthly procedure for testing the emergency stop button.

1.4 Preventive Maintenance Tasks

Covers X-ray tube/laser assembly, daily QA, and weekly QA tests.

Chapter 2: Basic Procedures

2.1 DPX-IQ Interface Overview

Introduces the system's interface, options screen, and available scan types.

Common Keys and Navigation

Explains the use of common keys like arrow keys and Esc for navigation and actions.

2.2 Starting the DPX-IQ Program

Provides step-by-step instructions for powering on and launching the DPX-IQ program.

2.3 Basic Acquisition Procedures

Covers fundamental steps applicable to all scan types.

Patient Considerations for Acquisition

Lists important factors to consider before scanning a patient, including clothing and pregnancy.

Five Basic Steps for Image Acquisition

Outlines the five essential steps for completing a scan, from selecting type to scanning.

Patient Management: Adding and Updating

Details adding new patients, selecting existing ones, and updating mandatory information.

2.3 Scan Acquisition Control

Provides instructions on how to stop, start, or continue a scan acquisition.

2.4 Basic Analysis Procedures

Outlines the fundamental steps for analyzing scan images to ensure reproducible results.

Scan File Selection and Image Adjustment

Guides users on selecting scan files and adjusting image parameters like type and filtering.

Image Analysis and Print Results

Covers manual adjustments for scan images and printing analysis reports.

2.5 Patient Trending Overview

Explains how to display, graph, and print patient scan results chronologically.

Patient Trending Options and Graphing

Guides on graphing and printing patient results using chronological data.

2.6 Archive Scan Files Procedure

Provides detailed steps for archiving patient scan files to archive media.

Chapter 3: Quality Assurance

3.1 Daily Quality Assurance Tests

Covers the importance and procedure of daily QA tests for scan quality.

QA Test Results Interpretation and Saving

Explains how to interpret QA results and save printouts.

Collimation Ratio and QA Warning Messages

Describes the collimation ratio test and QA warning messages for system status.

3.2 Spine Phantom QA Test

Outlines the weekly QA test using the spine phantom for accuracy.

Spine Phantom Data Entry and Scan Mode

Details patient data entry and scan mode selection for the spine phantom QA.

Spine Phantom Positioning and Preparation

Guides on positioning the spine phantom and preparing for the QA test.

Analyzing the Spine Phantom Scan

Details the analysis procedure for the spine phantom scan results.

Chapter 4: Default Settings

4.1 Print Manager Configuration

Explains the Print Manager's function for scheduling scan analysis and QA results printing.

Delayed Print Time and Printer Setup

Guides on setting print times and choosing printers and ports.

4.2 General Default Settings

Covers customization of default settings for report heading, miscellaneous options, and printout display.

Default Report Heading and Patient ID

Details customizing report headings and setting patient identification formats.

Default Settings for Dates, Names, and Display

Covers date format, name display, country field, and mini-menus settings.

Printout Display Options Configuration

Explains options for customizing the display of printout information like Young Display and Age Display.

Appendix A: AP Spine Acquisition and Analysis

A.1 AP Spine Image Acquisition

Provides steps for acquiring AP spine scan images, including mode selection.

AP Spine Patient Positioning and Laser Setup

Details patient positioning and laser light placement for AP spine scans.

A.2 AP Spine Analysis

Guides users through the basic steps of analyzing AP spine scan images.

AP Spine Profiles and Marker Adjustments

Covers examining and adjusting profiles, baselines, and edge markers for AP spine analysis.

A.3 Analysis Information for AP Spine

Provides detailed information to help complete the AP spine analysis procedure.

Labels and Intervertebral Space Markers

Explains how to examine and label vertebrae and position intervertebral space markers.

Baseline and Edge Marker Examination

Details how to examine baselines and edge markers for accurate BMD calculation.

Body ROI Analysis for Vertebrae

Guides on isolating vertebral bodies using ROIs for analysis.

Appendix B: Femur Acquisition and Analysis

B.1 Femur Image Acquisition

Provides steps for acquiring femur scan images, including mode selection.

Femur Patient Positioning and Brace Usage

Details patient positioning and foot brace usage for femur scans.

Femur Laser Light and DualFemur Setup

Explains laser light positioning for femur scans and DualFemur acquisition.

B.2 Acquisition Information for Femur

Provides information to help complete the femur image acquisition procedure.

Femur Rice Bag Placement and Scan Monitoring

Details rice bag placement and monitoring the scan for correct detector positioning.

DualFemurâ„¢ Acquisition Process

Describes the DualFemur acquisition process and how to abort it.

B.3 Femur Image Analysis

Outlines the basic steps for analyzing femur scan images.

Femur Neck ROI Placement Verification

Guides on ensuring correct placement of the Neck ROI for femur analysis.

B.4 Analysis Information for Femur

Provides information to help complete femur image analysis, focusing on ROI positioning.

Insufficient Tissue Messages and ROI Examination

Explains messages indicating acquisition issues and how to examine Neck ROI position.

Appendix C: Lateral Spine Acquisition and Analysis

C.1 Lateral Spine Image Acquisition

Provides steps for acquiring lateral spine scan images, including mode selection.

Lateral Spine Patient Positioning

Details patient positioning and the use of the lateral positioner for scans.

Lateral Spine Laser and Scan Completion

Covers laser light positioning and completing the lateral spine scan.

C.2 Lateral Positioner Installation

Guides on installing the lateral positioner correctly on the scan table.

C.3 Lateral Spine Image Analysis

Outlines the basic steps for analyzing lateral spine scan images.

Lateral Spine Analysis Adjustments

Covers changing labels, space markers, and edge markers for lateral spine analysis.

C.4 Analysis Information for Lateral Spine

Provides information to help complete the lateral spine analysis procedure.

Lateral Body ROIs and Labeling

Explains the use of lateral body ROIs and labeling for vertebral body analysis.

Labeling Body ROIs and Space Markers

Guides on labeling body ROIs and examining space markers for lateral spine scans.

Edge Markers and Lateral Body ROIs Examination

Details examining profiles and the position of edge markers and body ROIs.

Appendix D: Total Body Acquisition and Analysis

D.1 Total Body Image Acquisition

Provides steps for acquiring total body scan images, including mode selection.

Total Body Patient Positioning and Scan Completion

Details patient positioning for total body scans, including securing limbs and autostop feature.

D.2 Total Body Image Analysis

Outlines the basic steps for analyzing total body scan images.

Total Body Scan Cut Positions and Analysis

Guides on ensuring correct cut positions for total body analysis.

Tissue Quantitation for Body Composition

Explains how to display and interpret soft tissue scan images for body composition analysis.

D.3 Analysis Information for Total Body

Provides information to help complete the total body analysis procedure, focusing on positioning cuts.

Positioning Anatomical Cuts for Analysis

Details the correct positioning of anatomical cuts for specific analysis areas.

Appendix E: Forearm Acquisition and Analysis

E.1 Forearm Image Acquisition

Provides steps for acquiring forearm scan images, including scan parameters.

Forearm Patient Positioning and Laser Setup

Details patient positioning and laser light placement for forearm scans.

E.2 Acquisition Information for Forearm

Provides information to help complete the forearm image acquisition procedure.

Measuring Forearm Length for Scanning

Guides on measuring the length of the forearm for scan acquisition.

Scan Length Recording and Positioner Setup

Explains how to select scan length and set up the forearm positioner.

E.3 Forearm Image Analysis

Outlines the basic steps for analyzing forearm scan images.

Forearm Bone and ROI Labels Examination

Guides on examining and changing bone and ROI labels for forearm analysis.

Forearm Profiles, Markers, and ROI Positions

Covers examining edge markers, profiles, and ROI positions for forearm analysis.

E.4 Analysis Information for Forearm

Provides information to help complete forearm image analysis.

Examining Forearm Bone and ROI Labels

Explains how to examine and change bone and ROI labels for forearm analysis.

Forearm Baseline and Edge Marker Examination

Guides on ensuring correct baseline placement and examining edge markers.

Appendix F: Hand Image Acquisition and Analysis

F.1 Hand Image Acquisition

Provides steps for acquiring hand scan images, including scan parameters.

Hand Patient Positioning and Laser Setup

Details patient positioning and laser light placement for hand scans.

F.2 Hand Image Analysis

Outlines the basic steps for analyzing hand scan images.

Appendix G: Orthopedic Hip Acquisition and Analysis

G.1 Orthopedic Hip Image Acquisition

Provides steps for acquiring orthopedic hip scan images, including mode selection.

Hip Patient Positioning and Brace Usage

Details patient positioning and use of foot brace and knee positioner for hip scans.

Hip Laser Light and Scan Monitoring

Covers laser light positioning and monitoring the scan for correct detector position.

G.2 Orthopedic Hip Image Analysis

Outlines the basic steps for analyzing orthopedic hip scan images.

G.3 Analysis Information for Orthopedic Hip

Provides information to help complete the orthopedic hip analysis procedure.

Edge Markers for Hip Analysis

Explains the use of edge markers and line profiles for hip implant analysis.

Examining Hip Edge Markers

Guides on ensuring correct placement of edge markers for hip implant analysis.

Examining Hip Reference Point

Details how to ensure the correct placement of the reference point for hip analysis.

Examining Standard Analysis ROIs

Guides on examining the position of standard analysis ROIs for hip analysis.

Gruen Analysis ROIs for Implants

Details the position of Gruen Analysis ROIs for implant analysis.

Modified and Extended Gruen Analysis

Explains modified Gruen analysis and the Extended Gruen analysis mode.

Offset, Perimeter, and Rim Options

Details options for isolating BMD values near implants using edge markers.

Appendix H: Specifications

H.1 Space Requirements

Specifies the minimum room dimensions and component placement for the DPX-IQ system.

H.2 Component Specifications

Lists specifications for included computer, monitor, and optional printers.

Printer and Output Device Specs

Details specs for printers and other optional output devices.

Scan Table Specifications

Provides dimensions and identification details for DPX-IQ scan tables.

H.3 Functional Specifications

Outlines functional aspects of the DPX-IQ system.

General and Scan Area Specs

Lists general functional specs and maximum scan area for various scan types.

Included Software Programs

Lists the software programs that may be included with the DPX-IQ system.

H.4 Environmental Specifications

Details environmental requirements for system operation and maintenance.

H.5 Power Specifications

Provides information on leakage current and scan table power.

H.6 X-ray Generator Specifications

Details technical information about the X-ray generator for DPX-IQ series devices.

X-ray Generator Technical Details

Presents a table of technical specifications for the X-ray generator.

LUNAR 8022 X-ray Tube Specs

Provides technical information for the LUNAR 8022 X-ray tube.

LUNAR 2288 X-ray Tube Head Specs

Details technical information for the LUNAR 2288 X-ray tube head assembly.

LUNAR Laser Specifications

Lists the technical specifications for the LUNAR laser system.

H.7 Compatible Components

Lists government-certified compatible computer components and their requirements.

Appendix I: Comparison to Reference Population

I.1 Reference Data Overview

Explains the basis of reference data for DPX scans and factors influencing it.

I.2 Reference Population Database

Details the composition of the reference population database used for comparisons.

Population Database Subject Counts

Details the composition of the reference population database used for comparisons.

Spine and Femur BMD Reference Values

Presents tables of mean BMD values for spine and femur regions by age and gender.

Femur and Total Body BMD Comparisons

Shows graphical comparisons of DPX reference values against NHANES data.

Total Body and Radius Shaft BMD Data

Presents tables of mean BMD values for total body and radius shaft by age and gender.

I.3 Age Adjustment Methodology

Explains how age regressions are used to calculate expected BMD for age-matched comparisons.

I.4 Weight Adjustment Methodology

Details how body weight adjustments are applied for age-matched comparisons.

% Young Adult Age Ranges by Site

Lists the age ranges for %Young Adult comparisons for different scan sites.

Appendix J: Precision and Accuracy

J.1 Precision Definition and Measurement

Defines precision and presents DPX system's precision error for spine and femur measurements.

Short-term DPX Precision Data

Provides tables detailing short-term precision measurements for DPX spine, femur, and total body scans.

J.2 Accuracy Validation

Discusses the accuracy of DPX-IQ in measuring BMC and BMD, validated against known standards.

DPX Accuracy Comparisons

Shows graphical comparisons of DPX results with DPA and studies the effect of tissue thickness.

J.3 References for Precision and Accuracy

Lists references related to performance evaluation of dual-energy x-ray bone densitometry.