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0.0
syngo CT 2007E
Emotion Operator Manual
02/2008
0.0
Constancy Test
Quality Assurance
F.3-22
Performing the MTF test
F.3
The
spacial resolution
is characterized through the modulation
transmission function (MTF). It describes the contrast ampli-
tude of bar patterns with different local frequencies shown in
the image relative to an ideal transmission.
F.3
The 2% value of the MTF is the local frequency at which the con-
trast of periodical bar patterns of this local frequency is reduced
to 2%. In practice, the MTF values are determined using a single
thin wire.
F.3
F.3
✧
Press the
Start
key on the control box.
Scanning is started.
F.3
i
.3
F
After the previous test has been completed, the
MTF
test is
started automatically.
F.3
The MTF is represented graphically as a function of the local fre-
quency (LP/cm). In addition, three characteristic values, 50%
MTF, 10% MTF an 2% MTF are displayed.
F.3
Summary of Contents for SOMATOM Emotion syngo CT 2007E
Page 4: ...0 0 syngo CT 2007E Emotion Operator Manual 02 2008 0 0 ii ...
Page 8: ...0 0 syngo CT 2007E Emotion Operator Manual 02 2008 0 0 vi ...
Page 240: ...0 0 syngo CT 2007E Emotion Operator Manual 02 2008 0 0 Console System Description B 5 24 ...
Page 264: ...0 0 syngo CT 2007E Emotion Operator Manual 02 2008 0 0 System Handling C 2 ...
Page 340: ...0 0 syngo CT 2007E Emotion Operator Manual 02 2008 0 0 Function Tests Operation D 2 6 ...
Page 426: ...0 0 syngo CT 2007E Emotion Operator Manual 02 2008 0 0 Maintenance E 2 ...
Page 442: ...0 0 syngo CT 2007E Emotion Operator Manual 02 2008 0 0 Quality Assurance F 2 ...
Page 526: ...0 0 syngo CT 2007E Emotion Operator Manual 02 2008 0 0 Camera Test Quality Assurance F 6 6 ...
Page 536: ...0 0 syngo CT 2007E Emotion Operator Manual 02 2008 0 0 Technical Specifications G 2 ...
Page 540: ...0 0 syngo CT 2007E Emotion Operator Manual 02 2008 0 0 Release Information J 2 ...
Page 542: ...0 0 syngo CT 2007E Emotion Operator Manual 02 2008 0 0 Safety Instructions K 2 ...
Page 544: ...0 0 syngo CT 2007E Emotion Operator Manual 02 2008 0 0 Forms L 2 ...
Page 546: ...0 0 syngo CT 2007E Emotion Operator Manual 02 2008 0 0 DIP Report M 2 ...
Page 548: ...0 0 syngo CT 2007E Emotion Operator Manual 02 2008 0 0 Location of labels N 2 ...
Page 566: ...0 0 syngo CT 2007E Emotion Operator Manual 02 2008 0 0 Glossary O 18 ...
Page 574: ...0 0 syngo CT 2007E Emotion Operator Manual 02 2008 0 0 Index P 8 ...