Edge Ultrasound System Wartungshandbuch PDF herunterladen (Seite 68)

60 Chapter 8: Performance Testing

Basic Operational Tests

2D Performance Tests

2D Performance / Image Quality

Basic System

Operation

Tests

1 Verify that the correct transducer name appears in the upper right corner of the system

display.

2 Verify proper date and time.

3 Verify that the scan plane orientation mark in the image located near the skinline

corresponds to element #1 on the transducer. To test, put your finger on the probe and run

it across the transducer face. Your finger touching the transducer face should appear at the

orientation mark on the display image format.

4 Verify that all of the keyboard keys are functional. Verify that all controls operate smoothly

over their full range and that the system responds properly.

5 Verify that as the Gain controls are increased and decreased, there is a corresponding

increase and decrease in echo intensity.

6 Capture a Cineloop buffer. Exercise the Cineloop controls and verify proper operation.

7 Close the lid and verify the unit goes into sleep mode. Open the lid and verify the unit

returns to normal operation.

8 Verify the airflow from the vent on the left side of the system is blowing out.

Test 2D

Performance

and Image

Quality

1 Use a C60x/5-2 MHz transducer in 2D mode.

2 Adjust the position of the C60x/5-2 MHz transducer on the phantom.

3 With the array pointing down and the orientation mark to the operator’s left, element #1

corresponds with the left side of the array.

4 Use the 2D system controls to obtain a clear image that shows both the horizontal and

vertical rows of pins.

5 Verify that the ultrasound image appears uniform in both the axial and lateral direction,

with no dropouts or intensity variations.

6 Verify that the cystic structure at the focal zone is clearly differentiated from the

surrounding tissue and is echo-free, while solid tissue with numerous echo sources, appears

solid.

7 Press the Freeze key and then save the image. Press the Freeze key again to return to live

imaging.

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Edge Ultrasound System Wartungshandbuch Seite 68