design of phantom and metallic implants for 3d - ePrints@USM

4.3 Design and fabrication of new phantoms 71
4.3.1 Geometrical design of new phantoms 71
4.3.2 Preparation of moulding 76
4.3.3 Preparation of phantom 77
4.3.3.1 Epoxy composite phantom 77
4.3.3.2 Polyurethane phantom 78
4.3.3.3 Paraffin wax phantom 79
4.3.4 Assembly of fabricated phantom 80
4.4 PET/CT performance tests 81
4.4.1 Image quality test 82
4.4.1.1 Preparation of the line source 82
4.4.1.2 Preparation of 18 F for the phantom 84
background volume
4.4.1.3 Positioning of the phantom and data acquisition 84
4.4.1.4 Image quality data analysation 85
4.4.2 CT number accuracy test 86
4.4.2.1 CT number analysis procedure 87
4.4.3 Uniformity test 88
4.4.3.1 Analysis procedure 88
4.4.4 Sensitivity test 89
4.4.4.1 Analysis procedure 89
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