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Safety
Information about Personal Safety
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04/2012
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A.2-25
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Metal artifacts
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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
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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.
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Greater difficulties are encountered with peristalsis. Heartbeat
artifacts are also problematic.
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In sequence mode, a special reconstruction technique, the
Motion Artifact Correction Algorithm (MCA) is used to further
reduce motion artifacts (not selectable).
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Summary of Contents for SOMATOM Spirit
Page 4: ...0 0 0 0 ii SOMATOM Spirit0 0 ...
Page 8: ...0 0 0 0 vi SOMATOM Spirit0 0 ...
Page 55: ...Safety Information about Personal Safety 0 0 04 2012 0 0 A 2 130 0 A 2 ...
Page 72: ...0 0 0 0 Information about Personal Safety Safety A 2 30 SOMATOM Spirit0 0 ...
Page 84: ...0 0 0 0 Mechanical Safety Safety A 3 12 SOMATOM Spirit0 0 ...
Page 128: ...0 0 0 0 Software Related Safety Information Safety A 4 44 SOMATOM Spirit0 0 ...
Page 164: ...0 0 0 0 Console Related Safety Advice System Description B 4 8 SOMATOM Spirit0 0 ...
Page 190: ...0 0 0 0 Storage Media and Drives System Description B 6 6 SOMATOM Spirit0 0 ...
Page 198: ...0 0 0 0 System Handling C 2 SOMATOM Spirit0 0 ...
Page 230: ...0 0 0 0 Use of Storage Media System Handling C 3 14 SOMATOM Spirit0 0 ...
Page 234: ...0 0 0 0 Operation D 4 SOMATOM Spirit0 0 ...
Page 266: ...0 0 0 0 Function Tests Operation D 2 6 SOMATOM Spirit0 0 ...
Page 350: ...0 0 0 0 Maintenance E 2 SOMATOM Spirit0 0 ...
Page 362: ...0 0 0 0 Cleaning Agents and Disinfectants Maintenance E 2 6 SOMATOM Spirit0 0 ...
Page 366: ...0 0 0 0 Cleaning and Disinfecting Maintenance E 3 4 SOMATOM Spirit0 0 ...
Page 368: ...0 0 0 0 Quality Assurance F 2 SOMATOM Spirit0 0 ...
Page 376: ...0 0 0 0 General Information Quality Assurance F 1 8 SOMATOM Spirit0 0 ...
Page 384: ...0 0 0 0 Daily Quality Measurements Quality Assurance F 2 8 SOMATOM Spirit0 0 ...
Page 424: ...0 0 0 0 Constancy Test Quality Assurance F 3 40 SOMATOM Spirit0 0 ...
Page 436: ...0 0 0 0 Low Contrast Test Optional Quality Assurance F 4 12 SOMATOM Spirit0 0 ...
Page 439: ...Quality Assurance Camera Test 0 0 04 2012 0 0 F 5 30 0 Examples of test images F 5 F 5 ...
Page 450: ...0 0 0 0 Technical Specifications G 2 SOMATOM Spirit0 0 ...
Page 452: ...0 0 0 0 Standards and Statutory Regulations H 2 SOMATOM Spirit0 0 ...
Page 454: ...0 0 0 0 Forms J 2 SOMATOM Spirit0 0 ...
Page 456: ...0 0 0 0 DIP Report K 2 SOMATOM Spirit0 0 ...
Page 458: ...0 0 0 0 Location of Labels L 2 SOMATOM Spirit0 0 ...