Phantom Laboratory Catphan 503 - Table of Contents

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T h e P h a n t o m L a b o r a t o r y
Catphan® Manual
Contents
Warranty 1
Introduction 4
Initial phantom positioning 5
Illustration of Catphan® 503 model 6
Phantom position verication 7
Incremental phantom module positioning 8
Drawings in the manual 8
CTP404 module 9
Patient alignment system check 10
Scan slice geometry (slice width) 11
Scan incrementation 12
Circular symmetry 13
Spatial linearity of pixel size verication 13
Spherical acrylic contrast targets 13
CT or Hounseld Numbers by David Goodenough, Ph.D. 14
Sensitometry (CT number linearity) 15
CTP528 High resolution module with 21 line pair per cm gauge and point source 17
Bead point source for point spread function and MTF 17
Use of automated scanner MTF programs 18
Bead point source (slice sensitivity prole) 19
21 Line pair per centimeter high resolution gauge 20
CTP486 Image uniformity module 21
Installation and removal of test modules 23
Optional phantom annuli 24
Dose Phantoms 25
Sample quality assurance program 26
Automated computer analysis program 27
Bibliography 28