Understanding Imaging Performance (1): Spatial Resolution and Z-Sensitivity
Overview
Spatial Resolution
Spatial resolution (2)
Expressing Spatial Resolution
Expressing Spatial Resolution - MTF
Modulation Transfer Function
Measurement of Spatial Resolution
Measurement of Spatial Resolution (2)
Measurement of Spatial Resolution (3)
Measurement of Spatial Resolution (4)
Dependence on Scanner Design
Effective Detector Width
Sampling Rate
Techniques to Improve Resolution
Techniques to Improve Resolution (2)
Techniques to Improve Resolution (3)
Dependence on Scan Parameters
Dependence on Reconstruction Parameters
Resolution in Helical and Multi-Slice CT
Z-Sensitivity
Expressing Z-Sensitivity
Measurement Methods (1)
Measurement Methods (2)
Significance
Effect on CT Number
Effect on CT Number (Partial Volume)
Effect on Contrast and Visibility
Factors Affecting Z-Sensitivity
Z-Sensitivity in Helical Scanning
Helical Z-Sensitivity - Interpolator
Helical Z-Sensitivity - Recon Increment
Isotropic imaging
Summary and Discussion
Author: Nick Keat
E-mail: nick@impactscan.org
Homepage: http://www.impactscan.org/
ImPACT course presentation index: http://www.impactscan.org/impactcourseslides.htm