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Intensity-modulated Radiotherapy for Rectal Cancer in the UK in 2020.

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Summary
This summary is machine-generated.

Intensity-modulated radiotherapy (IMRT) is increasingly used for rectal cancer in the UK. A national survey revealed widespread adoption but significant variations in practice, informing new national guidance.

Keywords:
IMRTintensity-modulated radiotherapyneoplasmrectal cancersurvey

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Area of Science:

  • Oncology
  • Radiotherapy
  • Medical Physics

Background:

  • Preoperative chemoradiotherapy followed by surgery is standard for locally advanced rectal cancer.
  • Intensity-modulated radiotherapy (IMRT) use for rectal cancer is growing in the UK.
  • Current IMRT implementation and practice patterns were previously unknown.

Purpose of the Study:

  • To survey the landscape of IMRT use for rectal cancer in the UK.
  • To identify variations in IMRT workflow and practice.
  • To inform the development of national rectal cancer IMRT guidance.

Main Methods:

  • A web-based survey was developed and distributed to all UK radiotherapy centers.
  • The survey focused on IMRT implementation across the workflow: fractionation, simulation, target/organ delineation, planning, and verification.
  • Descriptive statistical analysis was performed on the collected data.

Main Results:

  • 70% of centers responded; 68% use IMRT for all rectal cancer patients, 82% for selected patients.
  • General agreement exists on patient positioning, contrast use, and bladder protocols.
  • Significant practice variations were noted in rectal protocols, boost use, target/organ delineation, and verification methods.

Conclusions:

  • IMRT is widely adopted for rectal cancer in UK radiotherapy centers.
  • Heterogeneity exists in IMRT implementation and practice across centers.
  • Survey findings are crucial for developing national IMRT guidance.