Patient dose assessment

• understanding concepts of patient dose

  • effect of scan parameters
    • scan length, no.slices, slice width, kV, mA
    • spiral scanning

• dose issues in multi-slice scanners

  • collimation, spiral
  • scanner protocols

• comparative dosimetry using the CTDI

• measurement of skin dose

• calculation of organ dose and effective dose

  • NRPB Monte Carlo organ dose datasets
  • ImPACT scanner matching process
  • use of dose calculation spreadsheet

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