Principles of CT Dosimetry
Overview
Radiation dose from CT
Radiation dose from CT (2)
Radiation dose from CT (3)
Radiation dose from CT (4)
Effective doses from diagnostic examinations
Radiation Units
Dose distribution in CT
Dose distribution in x-y plane
Dose distribution - along z-axis
Dose distribution along z-axis
Z-axis dose profile
Z-axis dose profile (2)
Measurement of absorbed dose in CT
Measurement of dose in CT
Computed Tomography Dose Index
Computed Tomography Dose Index (2)
CTDI in multi-slice
Computed Tomography Dose Index (3)
Computed Tomography Dose Index (4)
CTDI: where , what , how?
Where? - Measurement material
What? - Dose to what material?
How much of tails are included?
How much of tails included?
CTDI definitions
CTDI100
CTDI phantoms
Average dose in scan plane: CTDIw
Average dose in scanned volume
Average dose in scanned volume: CTDIvol
CT absorbed dose summary
Normalised CTDI
Measurement tools
Measurement tools (1)
Measurements with ion chamber
Measurement tools (2)
Measurements with TLD
Measurement tools (3)
Measurement tools (4)
Measurement Tools (5)
Absorbed dose and radiation risk
Radiation risk
Dose length product
Effective Dose (E)
Estimates of Effective Dose
Calculation of effective dose
Calculation of effective dose (2)
Author: Maria Lewis
E-mail: maria@impactscan.org
Homepage: http://www.impactscan.org/
ImPACT course presentation index: http://www.impactscan.org/impactcourseslides.htm