Microsoft PowerPoint - Physics Bucharest

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Avoid motion artifacts in planning CT-scan
(i.e. avoid systematic errors)
Breathing motion artefacts in planning CT-scan
 breathhold scanning: multislice CT-scanner,
only 3D scan in 1 phase
 gated free-breathing scanning: single slice scanner,
only 3D scan in 1 phase
 4DCT scanning: multislice CT-scanner,
10 3D CT-scans in 10 breathing phases