radiology in planning
TRANSCRIPT
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Radiology in planning
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Digital information repair of Maxilla.
• The main planning problem in bone grafting, when we generate the 3D surface from CT pictures and no included the information what we want to see.
• Those patients which have bone atrophy, in their case the cortical bone of maxilla is too thin. This factor is which affects the contrast quality of image.
• In this case the solution is to reduce the value of voxel (resolution increases).
• This causes better image, because more information coming from the bone (voltage signal proportion of filled) and better the process of voltage signal proportion (raw data).
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Process of voltage signal proportion (raw data)
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200 µ process
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125 µ process
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First CT scan parameters
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Intersecting planes
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A-A cross section (pink area)
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Biggest cross section: 1,563 mm
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Voxel modify CT scan parameters
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Different voxel values125 µ200 µ
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Result
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