Techniques and technology for dose reduction in CT
About ImPACT
Introduction – techniques and technologies
Is there a problem?
Is there a problem? 2
Is there a problem? 3
Things to bear in mind
Where do opportunities exist?
Techniques : Scan protocol optimisation
Scan protocol optimisation : kV
Scan protocol optimisation : collimation
Scan protocol optimisation : slice width
Scan protocol optimisation : helical pitch
Scan protocol optimisation : mAs
Techniques : tailored exposure parameters
Tailored exposure parameters for the individual
Tailoring exposure parameters to the individual
Weight / age based paediatric protocols
Techniques : Gantry tilt
Techniques : shielding sensitive organs
Techniques : extra rotations in helical scanning
Techniques : comparison with reference doses
Technology : Multi-slice scanners and dose
Multi-slice scanners and dose
Multi-slice scanners and dose 2
What is being developed : technology
How the systems work
Technology : automatic mA adjustment
Automatic mA adjustment
Advantages of automatic mA control
Difficulties to overcome with AEC
What’s available now
Results from automatic mA systems
Summary
Author: Nick Keat
E-mail: nick@impactscan.org
Homepage: http://www.impactscan.org/