5.5 Acquire and use patient image data for treatment planning. Estimate uncertainties involved and assess their impact.
  1. Gain an understanding of and report on the following:
    • Patient treatment set up and positioning procedures
    • The purpose, importance and dosimetric considerations of patient immobilisation in external beam therapy
    • Accuracy and limitations of immobilization devices
    • Patient data required for treatment planning
    • Methods for acquisition of patient data, including:
      • Manual methods
      • Simulator
      • CT/CT-Simulator
      • MRI
      • PET/CT-PET
    • Magnitude and sources of uncertainties involved in the:
      • Image data
      • Contouring of target volumes and critical tissue structures of interest
    • Treatment margins needed for contouring the target volumes and organs at risk for a variety of treatment sites
    • Application of the ICRU concepts in contouring:
      • Target volumes
      • Normal organs at risk
      • Treatment margins
  2. Transfer patient image data to RTPS for a variety of treatment sites using:
    • Radiographs
    • CT images
    • MR images
    • Fused CT, MRI, and PET images
  3. Perform image registration and contouring with these images, for the treatment targets and organs of interest.
  4. Use:
    • Margins to compensate/accommodate inter-fraction and intrafraction treatment errors.
    • Image reconstruction
    • 2-D and 3-D display of contoured body and tissue structures
    • Generation of digital reconstruction radiograph (DRR)
    • Identification of planning contours reference points for dose assessment and treatment set up
  5. Provide supervision, support and advice on:
    • patient immobilization and patient data acquisition procedures
    • Acquisition and application of patient data for treatment planning
    • Image transfer and registration
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