GE Logiq 200 Pro Quality assurance manual
g
Technical
Publications
2278812-100
Revision 0
GE Medical Systems
LOGIQ 200 and LOGIQ 200 PRO
Quality Assurance Manual
Copyright© 2000 by General Electric Company
Operating Documentation
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GE Medical Systems
GE Medical Systems: Telex: 3797371
P.O. Box 414, Milwaukee, Wisconsin 53201 U.S.A.
(Asia, Pacific, Latin America, North America)
GE Medical Systems—Europe: Telex: 695277
283 rue de la Miniére BP34
78533 BUC Cedex
LOGIQ α200 or LOGIQ 200 PRO
Quality Assurance Testing Documents
TABLE of CONTENTS
TAB #1 ACR Accreditation Overview 3 pages
TAB #2 Probe ID List 1 Page
QA Testing - 2277615-100 16 Pages
TAB #3 Probe ID List 1 Page
Probe 3 2267008-100 4 Pages
Probe 4 2272728-100 4 Pages
Probe 5 2272729-100 4 Pages
Probe 6 2272730-100 4 Pages
Probe 7 2272732-100 4 Pages
Probe 8 2272733-100 4 Pages
Probe 9 2272735-100 4 Pages
TAB #4 QA Reference Manual - 2262684-100 30 Pages
Probe ID List 1 Page
TAB #5 System Display Format 2 Pages
TAB #6 Section 4 - Service Manuals 20 Pages
TAB #7 Section 2 - Service Manuals 75 Pages
TAB #8 Filling out the ACR Forms 5 Pages
TAB #9 ACR, Section G: Quality Control 3 Pages
ACR, Section H: Equipment Chart 1 Page
TAB #10 Inspection and Calibration Certificate 1 Page
GE ULTRASOUND QUALITY ASSURANCE
ACR ULTRASOUND ACCREDITATION PROGRAM
The ACR Ultrasound Accreditation Program evaluates qualifications of personnel, equipment,
image quality and quality control measures. It is believed that these are the primary factors
impacting the quality of patient ultrasound imaging.
The Ultrasound Accreditation Program is carried out through the mail (paper submission), with
random on site reviews performed as needed for validation or clarification.
PROGRAM GOALS
• Improvement in the quality of ultrasound performance.
• Provision of educational information by raising awareness of ultrasound issues.
• Recognition of ultrasound facilities which meet program objectives.
• Collection of national data about the practice of ultrasound.
DEFINITION OF AN ULTRASOUND FACILITY
• Ultrasound section within a hospital
• Ultrasound service offered in an outpatient setting, e.g., office, multispecialty clinic, or
imaging center
• Mobile ultrasound service
A separate application is required for each location of ultrasound practice.
ULTRASOUND ACCREDITATION PROCESS
The ultrasound accreditation process consists of three parts which must be completed
successfully in order to receive accreditation.
Application – requests credentials of physicians and sonographer personnel.
Quality Control Evaluation – requests information about ultrasound quality control.
Clinical Image Evaluation – requests specific types of normal ultrasound exams; plus normal and
abnormal exams for vascular accreditation.
QUALITY CONTROL EVALUATION
1. A quality assurance (QA) program should be in place for each scanner in the facility.
The quality assurance program must be directed by a medical physicist or by the supervising
radiologist or physician who may appoint an appropriate designee to oversee the program.
There must be program documentation which describes the goals of the quality assurance
program and the responsibilities involved.
The person responsible for the quality assurance program must work with the preventive
maintenance professional. Routine quality control testing must occur regularly; a minimum
requirement is semiannually. The same tests must be performed during each testing period so
that changes can be monitored over time and effective corrective action can be taken. Testing
results, corrective action, and the effects of corrective action must be documented and
maintained on site.
GE ULTRASOUND QUALITY ASSURANCE
ACR ULTRASOUND ACCREDITATION PROGRAM
QUALITY CONTROL EVALUATION (continued)
The QA program must evaluate at least the following items in Gray-Scale Imaging Mode.
Specific QC data will be collected as part of the Full Application that is submitted in the second
phase of the accreditation process.
• System sensitivity and/or penetration capability.
• Image uniformity.
• Photography and other hard copy recording.
• Low contrast object detectability (optional).
• Assurance of electrical and mechanical safety.
In addition, it is recommended that users verify vertical and horizontal distance measurement
accuracy when a QA program is initiated for a scanner. It is not required that these factors be
reassessed during QC testing.
These items may be assessed using commercially available phantoms. At the present time,
there is no single phantom that is preferred; users should select a phantom from current
commercially available units.
2. Test Frequency
QA tests should be done at least semiannually for each scanner as part of the quality
assurance program for the site. Test results must be documented so that trends in equipment
performance can be identified and appropriate corrective action taken.
3. Transducers
On an ongoing basis, tests should be done using two probes commonly used with any
scanner employing more than one transducer. It is recommended that these be of different
scan formats such as one linear (or curvilinear) array and one sector (mechanical, phased or
vector).
4. Data to be Submitted for Accreditation
For each scanner, submit the QC Summary (Section G of the Full Application) which shows
the data acquired from one of the semiannual tests. The QC Summary should document
results from testing the transducer (which includes two probes with different formats). Data
should be taken from testing of the transducer which is used for the most frequently occurring
examination at the site.
Visit the ACR web site for more details:
http://www.acr.org/f-standards.html
GE ULTRASOUND QUALITY ASSURANCE
ACR ULTRASOUND ACCREDITATION PROGRAM
HOW GE ULTRASOUND CAN HELP
The ACR Quality Control Evaluation and Program is where we can help our customers with GE
Quality Assurance Evaluations (PMs).
New QA procedures are being written and tested to ensure that we incorporate the items that are
required by the ACR. It may be a slightly new mindset for the Field Engineer as it will require a
little more documentation so that the customer maintains records necessary to determine
performance trends.
The new QA testing that can be offered by GE Ultrasound will consist of:
• System QA Procedure – A Job Card style document with checks, tests and space available to
attach hard copy images for archival.
• QA Reference Manual – A detailed explanation of each check and test in the procedure. The
FE can refer to this if necessary.
• ACR Quality Control, Section G &H – Electronic versions of the official ACR paper submittal
forms. We have permission from the ACR to reprint this part of the accreditation application.
How I envision this to work. All forms are electronic and will be on a CD:
• FE opens up System QA Procedure on field laptop.
• FE performs appropriate checks and tests in the System QA Procedure.
• FE makes necessary entries on the electronic form.
• FE makes required hard copy images.
• At the completion of the System QA Procedure, FE prints out the procedure, attaches the hard
copy images in the appropriate place on the printout.
• While the FE completed the System QA Procedure on the laptop, the ACR Quality Control –
Section G (and maybe H) forms are filled in automatically. The FE prints out the ACR forms
and signs them.
• The FE gets customer approval and leaves the completed System QA Procedure and ACR
forms with the customer, with instructions that Quality Control – Section G & H can be used to
submit for ACR approval with the remainder of the paper application required by the ACR.
• Customer should also be reminded that retention of records for performance trends is critical,
if not mandatory.
NOTE: One extra thing we could do (for all or warranty/contract customers) is provide a QC
binder with divider tabs. This would allow the customer to maintain records of preventative and
corrective maintenance for trending and audit purposes.
05/23/00 MAC
LOGIQ a200 and LOGIQ 200 PRO
ACR Accredited Quality Assurance Procedure
Probe ID List
Name Model # Type Frequency Scan Format
CBF H460222CB Gen Purp 3-5 MHz Curved Linear
CAE H46022CA Gen Purp 5-7.5 MHz Curved Linear
MTZ H46022MT Endo Vag 5-7.5 MHz Curved Linear
CZB H45202CZ Superficial 5-7.5 MHz Curved Linear
CS H45222CS Gen Purp 3-5 MHz Curved Linear
ERB H45202ER Endorectal 5-7.5 MHz Curved Linear
3Cb H45202WB Gen Purp 3-5 MHz Curved Linear
LH H46022LH Superficial 7.5 MHz + Linear
LE H46022LE Gen Purp 5-7.5 MHz Linear
LI H46022LI Intraoperative 7.5 MHz + Linear
LT H46022LT Intraoperative 7.5 MHz + Linear
LB H46022LB Gen Purp 3-5 MHz Linear
LD H45202LD Intraoperative 3-5 MHz Linear
10L H45202LM Gen Purp 5-7.5 MHz Linear
SY H46022SY Gen Purp 3-5 MHz Phased Array
S317 H45202SD Gen Purp 3-5 MHz Phased Array
ATR H4061PR Endorectal 5-7.5 MHZ Curved Linear
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05/23/00 MAC
Page 2 of 2
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Samsung GE Medical Systems
LOGIQ a200
GE Medical Systems
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Purpose: Quality Assurance Testing
Customer Name:
Address: System Model:
System Serial #:
System ID #:
Purchase Order #:
System Configuration
Video Cassette Recorder
Line Printer
Video Page Printer
Urological Therapy Guidance
Other ___________________________________
_________________________________________
Field Service Engineer: ____________________________________ Employee #: _______________
US Unit Manufacturer:
Dispatch #:
System Status: Warranty Contract Billable
Biopsy Guide
Spectral Doppler
Color
Configuration Notes:
Refer to the Ultrasound QA Reference
Manual 2262684-100 for details.
Survey Date:
Year of Mfg.:
TEST EQUIPMENT
NAME MANUFACTURER MODEL Atten. SERIAL # CAL DATE
Leakage Tester
Multimeter
Gray Scale Phantom
TRANSDUCERS TESTED
The two transducers used most frequently should be listed as transducer number 1 and 2. Use the
separate documents provided to document the remaining transducers.
Transducer 1
Model: ________________________ Serial Number: ______________________________
Type: General Purpose Superficial Intraoperative
Endorectal Endovaginal Other _____________________
Freq: 2-3.5 MHz 3-5 MHz 5-7.5 MHz 7.5 MHz and higher
Scan Format: Phased Array Linear Array Curved Linear Array
Transducer 2
Model: ________________________ Serial Number: ______________________________
Type: General Purpose Superficial Intraoperative
Endorectal Endovaginal Other _____________________
Freq: 2-3.5 MHz 3-5 MHz 5-7.5 MHz 7.5 MHz and higher
Scan Format: Phased Array Linear Array Curved Linear Array
Mechanical Other _____________________
Mechanical Other _____________________
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LINE VOLTAGE TEST
System OFF: ______________VAC__ System ON: ________________VAC__
LINE CURRENT TEST (optional)
System OFF: ______________Amps_ System ON: ________________Amps_
OUTLET WIRING TEST QA Reference Manual Section 3-3. If correct, proceed to the next step.
GROUND CONTINUITY
QA Reference Manual Section 3-4. Use the Dale 600 Tester. Resistance should be less than 0.2
Ohms. If greater than 0.2 Ohms, perform detailed chassis leakage tests and troubleshoot.
GE Medical Systems
Correct Wiring Open Ground Wire
Reversed Polarity Open Neutral Wire
Hot & Gnd Reversed Open Hot Wire
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TEST POINT
Console _______________ Probe Screw ______________(any side screw)
Caster _______________ Foot Switch ________________
Monitor _______________ Printer ________________
Ground Continuity Tests PASS FAIL
CHASSIS SOURCE LEAKAGE TEST
QA Reference Manual Section 3-5. Max allowable is 300 uA.
IMPORTANT: Be sure to pause the polarity reverse switch in the OFF
seconds before reversing polarity.
POWER POLARITY SWITCH CHASSIS GND POWER POLARITY SWITCH CHASSIS GND
ON NORM Closed ON REV Closed
ON NORM Open ON REV Open
OFF NORM Closed OFF REV Closed
OFF NORM Open OFF REV Open
Chassis Source Leakage Tests Summary PASS FAIL
TRANSDUCER LEAKAGE CURRENT TESTS
All readings in micro-amps. Maximum allowable leakage current is 100 uA for general purpose and
endocavitary or 50 uA for surgical probes. QA Reference Manual Section 3-9.
DALE 600 DALE 600
POLARITY GND SW PROBE 1 PROBE 2
NORM Closed
NORM Open
Resistance (ohms) TEST POINT Resistance (ohms)
GROUND CONSOLE GROUND CONSOLE
VCR ________________
position for a minimum of 10
Transducer Leakage Current Test Summary: Choose Pass or Fail and
Transducer 1 PASS FAIL
CHANGE NO CHANGE
Transducer 2 PASS FAIL
CHANGE NO CHANGE
Change or No Change
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PHYSICAL INSPECTION/CLEANING
Cleaned and inspected the console? YES NO
Cleaned and inspected foot switch? YES NO
All cords and cables intact (no frays, tears or splits)? YES NO
All transducers intact
All transducer connector pins straight and intact? YES NO
All transducer strain reliefs in good condition? YES NO
All transducers cleaned (after each use)? YES NO
Image monitors cleaned? YES NO
Cleaned and inspected all power supplies? YES NO
All fans and/or air filters cleaned? YES NO
Checked all cable connectors to ensure they are properly seated? YES NO
Checked all plug-in boards to ensure they are properly seated? YES NO
All wheel locks in working condition? YES NO
All wheels fastened securely? Do they rotate easily? YES NO
All "onboard" peripherals fastened securely
Cleaned thermal printer print head with cleaner paper? YES NO
GE Medical Systems
(no cracks, dents, scratches or delamination)? YES NO
to the ultrasound unit (VCRs, Cameras, Printers, etc....)? YES NO
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VCR Inspected Cleaned
Printer Inspected Cleaned
Camera Inspected Cleaned
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Overall Electrical Safety and Cleanliness:
CHANGE NO CHANGE
All safety problems must be rectified before the system can be returned to service or before ACR
Accreditation submittal.
Comments: _____________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
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Power Supply Readings Refer to Chapter 4, Section 4-3 of the LOGIQ a200 or LOGIQ 200 PRO Service
Manuals for details on tolerances
Power Supplies available
depend on the type of system
serviced.
GE Medical Systems
, checking and adjusting of power supplies.
Supply Actual Reading Adjusted To
+5v Digital
-5v Digital
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Check only those that apply.
Mark all other entries N/A.
Reference is 0 voltage for the supply being measured.
Comments: ____________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
Functional Checks Refer to Chapter 4, Section 4-2 of the LOGIQ a200 or LOGIQ 200 PRO Service Manual.
General B-Mode B/M-Mode M-Mode
+5v Analog
-5 v Analog
+15
-15
+12v
-12v
HV
Foot Switch Focus Oper. Focus Oper. Focus Oper.
Record Key Gain Knob Gain Knob Gain Knob
Freeze Key TGC Pots TGC Pots TGC Pots
Printer Setting Dynamic Range Dynamic Range Dynamic Range
Comments: _____________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
NOTE: Refer to the LOGIQ a200 or LOGIQ 200 PRO User Manual for more information on system operation.
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GRAY SCALE TEST
Refer toChapter 2, Section 2-3-2 in the LOGIQ a200 or LOGIQ 200PRO Proprietary manual for details on
entering the service software program, tests and control commands.
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Select Monitor Test
The gray scale test is not intended to set up the camera, printer or peripherals to the test pattern. Ensure
that the monitor and photography are set up to the customer specifications.
Look at the gray bar test pattern on the left side of the viewing monitor.
Count the number of distinct gray bar steps on the viewing monitor. Then count the number of steps
visualized in the Gray bar on the hard copy image. Circle the number of steps, if any, that are missing on
the hard copy. Circle the number of steps, if any, that are missing on the hard copy.
Check the one box that applies:
Number of steps missing on the hard copy: 0 1 2 3 4+
Has the photography changed since the last QA Test?
NOTE: Press <CTRL><X> to exit the Monitor Test
from the Service Utility Menu
Change No Change (or First Test)
SECURE PAGE PRINT OF GRAY SCALE TEST HERE
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OVERVIEW
The following tests should be performed with each probe. Where indicated, a hard copy record should
be made and filed in order to assess performance trending during subsequent QA checks.
Refer to the QA Procedures Reference Manual for details in performing any tests.
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PERFORMANCE EVALUATION TESTS
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PHANTOM
.
Temperature __________________________
* Remember that phantom temperature may demonstrate errors in excess of 10% if you are establishing
a baseline or comparing to previous results.
Probe 1:
For Probe 1, adjust the system settings to produce the best possible overall image of the phantom.
This scan will be used to assess penetration capabilities, image uniformity, measurement
accuracy, axial resolution, lateral resolution and contrast detectability.
Gain: ________________________ Focus : ________________________
Dynamic Range: ____________________
For scan repeatability during
the next QA check, place a
check mark in a box to
indicate the relative position of
each TCG control for the scan.
SECURE PAGE PRINT OF PROBE 1 SCAN
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Probe 1 (cont'd):
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Penetration Capability
from the skin line to the point furthermost in depth where echoes disappear and record the depth
in centimeters. The maximum depth through which the echographic pattern can be visualized
is: Less than 3.0
3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5
8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5
13.0 13.5 14.0 15.0 116.0 or higher
Did system penetration change since the previous test?
Change No Change ( or First Test)
Image Uniformity
Change No Change (or First Test)
With your eye, evaluate the scan for image uniformity against the three indicators below:
The average brightness at the edge of the scan is the same as the average brightness in the
middle.
Agree Disagree, slight non-uniformity Disagree, major non-uniformity
There are no vertical or radially oriented shadows from array element dropout.
Agree Disagree, slight non-uniformity Disagree, major non-uniformity
. QA Reference Manual Section 4-2 Step 4. Use the calipers to measure
. Assess the image for uniformity from near field to far field.
There are no noticeable brightness transitions between focal zones.
Agree Disagree, slight non-uniformity Disagree, major non-uniformity
Measurement Accuracy
from the vertical pin closest to the skin line to the pin furthermost in depth. Do the same with
the horizontal row of pins.
Did the distance between the pins measured equal the e-caliper measurement?
Pass Fail
Change No Change (or First Test)
Lateral Resolution
how well the system/probe can display two targets side by side
of two targets on the same horizontal plane is the Lateral Resolution.
Note the Lateral Resolution measurement in mm : ________________________________
Axial Resolution
well the system/probe can display two targets above and below each other
distance of two targets on the same vertical plane is the Axial resolution.
. QA Reference Manual Section 4-2 Step 2. AXIAL resolution defines how
. QA Reference Manual Section 4-2 Step 3. Use the calipers to measure
. QA Reference Manual Section 4-2 Step 1. LATERAL resolution defines
. The smallest visible distance
. The smallest visible
Note the Axial Resolution measurement in mm : ________________________________
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NO
NO
NO
NO
NO
Probe 1 (cont'd):
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Contrast Resolution
the phantom contrast targets in the current scan. The point is not how any ONE of the targets
look but how well defined they are from each other, and from the background material.
Record the following information for five of the contrast targets, if available in the phantom. If
they are not available, indicate with N/A:
Object Number 1 2 3 4 5
Object Depth
Object Size
Object Contrast *
Object Detectability
Complete
Partial
Not Seen
Changed for Worse Y/N
Overall Probe Low Contrast Detectability:
Change No Change (or First Test)
. (OPTIONAL) QA Reference Manual Section 4-2 Step 6 & 7. Evaluate
Notes for contrast resolution
Object Depth - is from the skin line to the center of the object.
Object Size - is the overall diameter of the object (all should be the same)
Object Contrast -
Use the Echo Level function by freezing the image. Press the Measurement
key three (3) times to assess the gray scale contrast level.
A 3 cm square box appears in the image area.
Position the box in the center of the contrast object.
Press Set.
Record the resulting number as the Object Contrast in the chart above.
Object Detectability - Check one box according to your evaluation of the object.
Changed for Worse Y/N - Enter a Y (yes) or N (no).
Document any system setting changes if they are different than the original scan on page 6.
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
:
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Probe 1 (cont'd):
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Noise Level
scanning conditions. Describe the lighting conditions for repeatability during the next QA check.
___________________________________________________________________________________________________________
Adjust the system settings to produces a clean image.
Wipe all the gel from the probe face, and set the probe in its holder. With transmit power at a
fixed value, adjust the overall gain, until the far field image (beyond 3cm) begins to fill with noise.
Reduce the overall gain until the last of those noise “speckles” disappear.
Note the gain level on film and make a hard copy record of this test.
Gain: ________________________ Focus : ________________________
For scan repeatability during
the next QA check, place a
check mark in a box to
indicate the relative position of
each TCG control for the scan.
. QA Reference Manual Section 4-2 Step 5. Ensure that room lighting is set to normal
SECURE PAGE PRINT OF
PROBE 1 NOISE LEVEL
SCAN HERE
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Probe 2:
For scan repeatability during
the next QA check, place a
check mark in a box to
indicate the relative position of
each TCG control for the scan.
GE Medical Systems
For Probe 2, adjust the system settings to produce the best possible overall image of the phantom.
This scan will be used to assess penetration capabilities, image uniformity, measurement
accuracy, axial resolution, lateral resolution and contrast detectability.
Gain: ________________________ Focus : ________________________
Dynamic Range: ____________________
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SECURE PAGE PRINT OF PROBE 2 SCAN
Penetration Capability
from the skin line to the point furthermost in depth where echoes disappear and record the depth
in centimeters. The maximum depth through which the echographic pattern can be visualized
is: Less than 3.0
3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5
. QA Reference Manual Section 4-2 Step 4. Use the calipers to measure
8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5
13.0 13.5 14.0 15.0 16.0 or higher
Did system penetration change since the previous test?
Change No Change ( or First Test)
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Probe 2 (cont'd):
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Image Uniformity
Change No Change (or First Test)
With your eye, evaluate the scan for image uniformity against the three indicators below:
The average brightness at the edge of the scan is the same as the average brightness in the
middle.
Agree Disagree, slight non-uniformity Disagree, major non-uniformity
There are no vertical or radially oriented shadows from array element dropout.
Agree Disagree, slight non-uniformity Disagree, major non-uniformity
There are no noticeable brightness transitions between focal zones.
Agree Disagree, slight non-uniformity Disagree, major non-uniformity
Measurement Accuracy
from the vertical pin closest to the skin line to the pin furthermost in depth. Do the same with
the horizontal row of pins.
Did the distance between the pins measured equal the e-caliper measurement?
Pass Fail
. Assess the image for uniformity from near field to far field.
. QA Reference Manual Section 4-2 Step 3. Use the calipers to measure
Change No Change (or First Test)
Lateral Resolution
how well the system/probe can display two targets side by side
of two targets on the same horizontal plane is the Lateral Resolution.
Note the Lateral Resolution measurement in mm : ________________________________
Axial Resolution
the system/probe can display two targets above and below each other
of two targets on the same vertical plane is the Axial resolution.
Note the Axial Resolution measurement in mm : ________________________________
. QA Reference Manual Section 4-2 Step 1. LATERAL resolution defines
. The smallest visible distance
. QA Reference Manual Section 4-2 Step 2. AXIAL resolution defines how well
. The smallest visible distance
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NO
NO
NO
NO
NO
Probe 2 (cont'd):
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Contrast Resolution
the phantom contrast targets in the current scan. The point is not how any ONE of the targets
look but how well defined they are from each other, and from the background material.
Record the following information for five of the contrast targets, if available in the phantom. If
they are not available, indicate with N/A:
Object Number 1 2 3 4 5
Object Depth
Object Size
Object Contrast *
Object Detectability
Complete
Partial
Not Seen
Changed for Worse Y/N
Overall Probe Low Contrast Detectability:
Change No Change (or First Test)
. (OPTIONAL) QA Reference Manual Section 4-2 Step 6 & 7. Evaluate
Notes for contrast resolution
Object Depth - is from the skin line to the center of the object.
Object Size - is the overalldiameter of the object (all should be the same)
Object Contrast -
Use the Echo Level function by freezing the image. Press the Measurement
key three (3) times to assess the gray scale contrast level.
A 3 cm square box appears in the image area.
Position the box in the center of the contrast object.
Press Set.
Record the resulting number as the Object Contrast in the chart above.
Object Detectability - Check one box according to your evaluation of the object.
Changed for Worse Y/N - Enter a Y (yes) or N (no).
Document any system setting changes if they are different than the original scan on page 6.
_____________________________________________________________________________
_____________________________________________________________________________
_____________________________________________________________________________
:
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Probe 2 (cont'd):
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Noise Level
scanning conditions. Describe the lighting conditions for repeatability during the next QA check.
___________________________________________________________________________________________________________
Adjust the system settings to produces a clean image.
Wipe all the gel from the probe face, and set the probe in its holder. With transmit power at a
fixed value, adjust the overall gain, until the far field image (beyond 3cm) begins to fill with noise.
Reduce the overall gain until the last of those noise “speckles” disappear.
Note the gain level on film and make a hard copy record of this test.
Gain: ________________________ Focus : ________________________
For scan repeatability during
the next QA check, place a
check mark in a box to
indicate the relative position of
each TCG control for the scan.
. QA Reference Manual Section 4-2 Step 5. Ensure that room lighting is set to normal
Customer Acceptance and Sign-off
Assure covers and side panels are aligned and secure.
Reconnect any peripherals and interconnections removed during the QA Tests.
Return the system to it's original location, if moved.
Refer to the QA Reference Manual Section 2-15.
Gain Customer acceptance that the system is ready to return to service.
______________________________________________ _____________
Customer Signature Date
SECURE PAGE PRINT OF
PROBE 2 NOISE LEVEL
SCAN HERE
______________________________________________ _____________
Field Engineer Signature Date
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OPTIONAL DATA FOR THE LOGIQ α200 OR LOGIQ 200 PRO
2277615-100
The remainder of the checks are optional steps that can be accomplished by the field engineer or the customer.
While the following do not directly affect image quality, it may be good information to archive in the event that
the system would need to be restored after a catastrophic system failure.
LOGIQ 200 PRO
PRESETS
All system presets can be saved on a 128 Mbyte MOD through the SETUP>UTILITY Menu.
Press the SETUP MENU Key. Arrow down to USER UTILITY and press SET.
In the USER UTILITY Menu, ensure that a MOD has been formatted using Media Initialize.
Perform thye following procedures:
Preset Data Backup
OB User Table Backup
OB Trend Data Backup.
Label and date the MOD accordingly and have the customer store it in a safe place.
Preset data backed up at the request of the customer.
Customer chose not to back up preset data.
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This process is more intensive than a LOGIQ 200 PRO. No device is available the save the presets
electronically. Each screen must be displayed on the monitor and a print taken of that display. The prints
can then be stored in a safe place for future reference.
Ask the customer which menus are important for them to archive in the rare case of a catastropic failure.
PRESETS
To go directly to the system setup parameters pages, press <CTRL><S>
Make prints of all System Setup Parameter pages.
Remember: Some pages may require two or more prints due to each applications presets and then for
each probe attached. Use the following items as a check list of what menus were printed:
GE Medical Systems
LOGIQ α200
General System Setup
User OB Table Sub menu
Probe Parameter 1 Setup
Preset 1
Probe 1
Probe 2
Preset 2
Probe 1
Probe 2
Probe Parameter 2 Setup
Preset 1
Probe 1
Probe 2
Preset 2
Probe 1
Probe 2
Image Display and Application Setup
Preset 1
Preset 2
Body Pattern Setup
Preset 1
Preset 2
Comment Setup
Preset 1
Preset 2
Measurement Setup
Preset 1
Report Format Sub menu
A/N Assignment Sub menu
Cardiac Calc Sub menu
Preset 2
Report Format Sub menu
A/N Assignment Sub menu
Cardiac Calc Sub menu
Patient Entry Setup
Preset 1
Preset 2
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Diagnostics Refer toChapter 2, Section 2-3-2 in the LOGIQ a200 or LOGIQ 200PRO Proprietary manual for
details on entering the service software program, tests and control commands.
Caution: If you perform the over all System Test it will run for 21 minutes.
LOGIQ a200 Pass? LOGIQ 200 PRO Pass?
Beamformer Scan Test
HV TBF
ADC Linear/Convex Path
DSC/Front End Function Sector Path
B-Mode Function BPHV
B-Mode X-Y Memory MVP Hardware
B-Mode Cine B-Mode Function
M-Mode Function B-Mode Cine
MST M-Mode Function
System D-RAM MSTE
Keyboard Keyboard
PIOP PIOP
Monitor Monitor
Power Supply Power Supply
ROM Version
GE Medical Systems
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Comments: _____________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
05/23/00 MAC
LOGIQ a200 and LOGIQ 200 PRO
ACR Accredited Quality Assurance Procedure
Probe ID List
Name Model # Type Frequency Scan Format
CBF H460222CB Gen Purp 3-5 MHz Curved Linear
CAE H46022CA Gen Purp 5-7.5 MHz Curved Linear
MTZ H46022MT Endo Vag 5-7.5 MHz Curved Linear
CZB H45202CZ Superficial 5-7.5 MHz Curved Linear
CS H45222CS Gen Purp 3-5 MHz Curved Linear
ERB H45202ER Endorectal 5-7.5 MHz Curved Linear
3Cb H45202WB Gen Purp 3-5 MHz Curved Linear
LH H46022LH Superficial 7.5 MHz + Linear
LE H46022LE Gen Purp 5-7.5 MHz Linear
LI H46022LI Intraoperative 7.5 MHz + Linear
LT H46022LT Intraoperative 7.5 MHz + Linear
LB H46022LB Gen Purp 3-5 MHz Linear
LD H45202LD Intraoperative 3-5 MHz Linear
10L H45202LM Gen Purp 5-7.5 MHz Linear
SY H46022SY Gen Purp 3-5 MHz Phased Array
S317 H45202SD Gen Purp 3-5 MHz Phased Array
ATR H4061PR Endorectal 5-7.5 MHZ Curved Linear
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GE Medical Systems
PERFORMANCE EVALUATION
Probe 3
Model: ________________________ Serial Number: ______________________________
Type: General Purpose Superficial Intraoperative
Endorectal Endovaginal Other _____________________
Freq: 2-3.5 MHz 3-5 MHz 5-7.5 MHz 7.5 MHz and higher
Scan Format: Phased Array Linear Array Curved Linear Array
Mechanical Other _____________________
TRANSDUCER LEAKAGE CURRENT TESTS
All readings in micro-amps. Maximum allowable leakage current is 100 uA for general purpose and
endocavitary or 50 uA for surgical probes. QA Reference Manual Section 3-9.
DALE 600 DALE 600
POLARITY GND SW PROBE 3
NORM Closed
NORM Open
Leakage Current Test Summary: Choose Pass or Fail and Change or No Change
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Probe 3 PASS FAIL
CHANGE NO CHANGE
For Probe 3, adjust the system settings to produce the best possible overall image of the phantom. This
scan will be used to assess penetration capabilities, image uniformity, measurement accuracy, axial
resolution, lateral resolution and contrast detectability.
Gain: ________________________ Focus : ________________________
Dynamic Range: ____________________
For scan repeatability during
the next QA check, place a
check mark in a box to indicate
the relative position of each
TCG control for the scan.
SECURE PAGE PRINT OF PROBE SCAN
g
Probe 3 (cont'd):
GE Medical Systems
Penetration Capability. QA Reference Manual Section 4-2 Step 4. Use the calipers to measure
from the skin line to the point furthermost in depth where echoes disappear and record the depth
in centimeters. The maximum depth through which the echographic pattern can be visualized is:
Less Than 3.0
3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5
8.0 8.5 9.0 9.5 10.0 10.5 11.0 11.5 12.0 12.5
13.0 13.5 14.0 15.0 16.0 or higher
Did system penetration change since the previous test?
Change No Change ( or First Test)
Image Uniformity. Assess the image for uniformity from near field to far field.
Change No Change (or First Test)
With your eye, evaluate the scan for image uniformity against the three indicators below:
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The average brightness at the edge of the scan is the same as the average brightness in the
middle.
Agree Disagree, slight non-uniformity Disagree, major non-uniformity
There are no vertical or radially oriented shadows from array element dropout.
Agree Disagree, slight non-uniformity Disagree, major non-uniformity
There are no noticeable brightness transitions between focal zones.
Agree Disagree, slight non-uniformity Disagree, major non-uniformity
Measurement Accuracy. QA Reference Manual Section 4-2 Step 3. Use the calipers to measure
from the vertical pin closest to the skin line to the pin furthermost in depth. Do the same with the
horizontal row of pins.
Did the distance between the pins measured equal the e-caliper measurement?
Pass Fail
Change No Change (or First Test)
Lateral Resolution. QA Reference Manual Section 4-2 Step 1. LATERAL resolution defines
how well the system/probe can display two targets side by side. The smallest visible distance of
two targets on the same horizontal plane is the Lateral Resolution.
Note the Lateral Resolution measurement in mm : ________________________________
Axial Resolution. QA Reference Manual Section 4-2 Step 2. AXIAL resolution defines how well
the system/probe can display two targets above and below each other. The smallest visible distance
of two targets on the same vertical plane is the Axial resolution.
Note the Axial Resolution measurement in mm : ________________________________
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