ATS 540 Series Kullanım Kılavuzu - Sayfa 8
Test Ekipmanları ATS 540 Series için çevrimiçi göz atın veya pdf Kullanım Kılavuzu indirin. ATS 540 Series 9 sayfaları. Rectal scan phantom
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5. Move the transducer slightly until the gray scale target group is clearly imaged.
6. Freeze image and obtain a hard copy.
7. Examine the image. The targets should appear circular in shape, with clear sharp
edges and vary in the degree of brightness ranging from low to high levels of contrast.
The presence or absence of any shadowing behind the structures should be noted.
8. All findings should be documented on the quality assurance record.
Results
This target group varies in echogencity and provides a good indication of the
performance of the gray scale processing and displayed dynamic range. The test
should be compared with a baseline test using the same instrument setting, to
determine if any change in the characteristics of the target group has occurred with
time. If changes are noted, they should be investigated.