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Safety
Information about Personal Safety
0.0
04/2012
0.0
A.2-25
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Metal artifacts
A.2
Metal objects such as tooth fillings, surgical clips, jewelry, hair
clips, belts or hip prostheses, and so on, can cause extreme
forms of beam hardening artifacts. Depending on density and
size, they can lead to total absorption of the radiation. This
results in corresponding strong black or white streaks or
star-shaped artifacts.
A.2
Motion artifacts
A.2
Movement of organs in the slice or displacement of the entire
slice during scanning likewise causes bright and dark artifacts.
These are usually seen as streaks or in areas of low density. To
reduce motion artifacts use the automatic patient instructions
(API) function for breathing and swallowing commands.
A.2
Greater difficulties are encountered with peristalsis. Heartbeat
artifacts are also problematic.
A.2
In sequence mode, a special reconstruction technique, the
Motion Artifact Correction Algorithm (MCA) is used to further
reduce motion artifacts (not selectable).
A.2
Содержание SOMATOM Spirit
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Страница 55: ...Safety Information about Personal Safety 0 0 04 2012 0 0 A 2 130 0 A 2 ...
Страница 72: ...0 0 0 0 Information about Personal Safety Safety A 2 30 SOMATOM Spirit0 0 ...
Страница 84: ...0 0 0 0 Mechanical Safety Safety A 3 12 SOMATOM Spirit0 0 ...
Страница 128: ...0 0 0 0 Software Related Safety Information Safety A 4 44 SOMATOM Spirit0 0 ...
Страница 164: ...0 0 0 0 Console Related Safety Advice System Description B 4 8 SOMATOM Spirit0 0 ...
Страница 190: ...0 0 0 0 Storage Media and Drives System Description B 6 6 SOMATOM Spirit0 0 ...
Страница 198: ...0 0 0 0 System Handling C 2 SOMATOM Spirit0 0 ...
Страница 230: ...0 0 0 0 Use of Storage Media System Handling C 3 14 SOMATOM Spirit0 0 ...
Страница 234: ...0 0 0 0 Operation D 4 SOMATOM Spirit0 0 ...
Страница 266: ...0 0 0 0 Function Tests Operation D 2 6 SOMATOM Spirit0 0 ...
Страница 350: ...0 0 0 0 Maintenance E 2 SOMATOM Spirit0 0 ...
Страница 362: ...0 0 0 0 Cleaning Agents and Disinfectants Maintenance E 2 6 SOMATOM Spirit0 0 ...
Страница 366: ...0 0 0 0 Cleaning and Disinfecting Maintenance E 3 4 SOMATOM Spirit0 0 ...
Страница 368: ...0 0 0 0 Quality Assurance F 2 SOMATOM Spirit0 0 ...
Страница 376: ...0 0 0 0 General Information Quality Assurance F 1 8 SOMATOM Spirit0 0 ...
Страница 384: ...0 0 0 0 Daily Quality Measurements Quality Assurance F 2 8 SOMATOM Spirit0 0 ...
Страница 424: ...0 0 0 0 Constancy Test Quality Assurance F 3 40 SOMATOM Spirit0 0 ...
Страница 436: ...0 0 0 0 Low Contrast Test Optional Quality Assurance F 4 12 SOMATOM Spirit0 0 ...
Страница 439: ...Quality Assurance Camera Test 0 0 04 2012 0 0 F 5 30 0 Examples of test images F 5 F 5 ...
Страница 445: ...Quality Assurance Constancy Test of the Monitor 0 0 04 2012 0 0 F 6 50 0 Examples of test images F 6 F 6 ...
Страница 450: ...0 0 0 0 Technical Specifications G 2 SOMATOM Spirit0 0 ...
Страница 452: ...0 0 0 0 Standards and Statutory Regulations H 2 SOMATOM Spirit0 0 ...
Страница 454: ...0 0 0 0 Forms J 2 SOMATOM Spirit0 0 ...
Страница 455: ...0 0 04 2012 0 0 K 10 0 APPENDIX J 0 K DIP Report For further information please refer to System Owner Man ual K 0 ...
Страница 456: ...0 0 0 0 DIP Report K 2 SOMATOM Spirit0 0 ...
Страница 458: ...0 0 0 0 Location of Labels L 2 SOMATOM Spirit0 0 ...