GE LOGIQ 200 Quality Assurance Manual page 193

With gains set to obtain a uniform phantom image, freeze the image. Complete the questions regarding the uniformity of the image by marking the appropriate box using this key.
1) Agree
Transducer #1
1) The average brightness at edge of the scan is the same as the
average brightness in the middle.
q 1
2) There are no vertically or radially oriented shadows from array element
dropout.
q 1
3) There are no brightness transitions between focal zones.
q 1
Transducer #1
Manufacturer of Phantom: _____________________ Model: __________
Object Depth
(Look at object's depth over a wide a range as possible to cover
maximum range of the scanner)
1 2 3
Object Size
1 2 3
Object Contrast
1 2 3
Detectability
1 2 3
Complete Complete Complete
Partial Partial Partial
Not Seen Not Seen Not Seen
Changed for Worse
1 2 3
NO
NO
With system sensitivity set up for visualizing echogenicity as deeply as possible into the phantom, what is the maximum depth you can visualize the background
echographic pattern?
Transducer #1
q q
Less than 3 cm 6 cm
q q
3cm 6.5 cm
q q
3.5 cm 7 cm
q q
4 cm 7.5 cm
q q
4.5 cm 8 cm
q q
5 cm 8.5 cm
q q
5.5 cm 9 cm
2) Disagree, slight non uniformities present
q 2 q 3
q 2 q 3
q 2 q 3
LOW CONTRAST OBJECTIVE DETECTABILITY (Optional)
Complete only if you use a phantom
4 5
4 5
4 5
4 5
Complete Complete
Partial Partial
Not Seen Not Seen
4 5
NO NO
NO
Mark the appropriate box.
q q
9.5 cm 13 cm
q q
10 cm 13.5 cm
q q
10.5 cm 14 cm
q q
11 cm 15 cm
q q
11.5 cm 16 cm
q
12 cm
q
12.5 cm
UNIFORMITY
1) The average brightness at edge of the scan is the same as the
average brightness in the middle.
q 1
2) There are no vertically or radially oriented shadows from array element
dropout.
q 1
3) There are no brightness transitions between focal zones.
q 1
Manufacturer of Phantom: _____________________ Model: __________
Object Depth
(Look at object's depth over a wide a range as possible to cover
maximum range of the scanner)
1 2
Object Size
1 2
Object Contrast
1 2
Detectability
1 2
Complete Complete
Partial Partial
Not Seen Not Seen
Changed for Worse
1 2
NO NO
PENETRATION
q q
Less than 3 cm
q q
3cm
q q
3.5 cm
q q
4 cm
q q
4.5 cm
q q
5 cm
q q
5.5 cm
3) Disagree, major non uniformities present
Transducer #2
q 2 q 3
q 2 q 3
q 2 q 3
Transducer #2
3 4
3 4
3 4
3 4
Complete Complete
Partial Partial
Not Seen Not Seen
3 4
NO
NO
Transducer #2
q
6 cm 9.5 cm
q
6.5 cm 10 cm
q
7 cm 10.5 cm
q
7.5 cm 11 cm
q
8 cm 11.5 cm
q
8.5 cm 12 cm
q
9 cm 12.5 cm
5
5
5
5
Complete
Partial
Not Seen
5
NO
q
13 cm
q
13.5 cm
q
14 cm
q
15 cm
q
16 cm