6 Panoramic and 3D calibrations and adjustments
89
Artefacts
This check is carried out visually. Person with experience
on interpreting 3D images should perform the check.
Examine the axial slices of 3D QC volume taken in the
previous QC steps. Be aware of artefacts which do not
originate from the object or from the projection conditions.
Please note that there will be some circles drawn in the
volume to indicate areas used for 3D QC program result
calculations.
Requirements:
Absence of artefacts, except for those that may be
expected due to phantom or projection conditions.
Examples:
Acceptable, shadowing may appear around straight
horizontal material interfaces.
Summary of Contents for ORTHOPANTOMOGRAPH OP 3D Pro
Page 2: ......
Page 4: ......
Page 8: ...iv rev...
Page 18: ...1 Introduction 10...
Page 27: ...2 Unit description 19 2 6 Unit movements Panoramic unit movements R C J D...
Page 29: ...2 Unit description 21...
Page 30: ...2 Unit description 22...
Page 38: ...4 PC requirements 30...
Page 54: ...5 Installing the unit 46 4 Fasten the covers...
Page 67: ...5 Installing the unit 59 C C D D Top cover of the column E E...
Page 104: ...7 Cephalometric calibration and alignment 96...
Page 111: ...7 Cephalometric calibration and alignment 103 3 Tighten the locking nut...
Page 117: ...7 Cephalometric calibration and alignment 109...
Page 128: ...8 Special procedures 120 6 Remove the arm from the column 4 nuts 7 Disassemble the arm...
Page 132: ...8 Special procedures 124 right handed assembly Prism assembly for the left handed cephalostat...
Page 158: ...8 Special procedures 150...
Page 165: ...9 OP 3D Pro Pre sales check list 157 9 11 Notes comments...
Page 166: ...9 OP 3D Pro Pre sales check list 158 9 12 Dimensions 463...
Page 167: ...9 OP 3D Pro Pre sales check list 159 9 13 Dimensions with cephalostat...