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Related Experiment Videos

Evaluating inter-campus plan consistency using a knowledge based planning model.

Sean L Berry1, Rongtao Ma1, Amanda Boczkowski1

  • 1Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, USA.

Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology
|July 11, 2016
PubMed
Summary
This summary is machine-generated.

Knowledge based planning (KBP) identified variations in intensity modulated radiotherapy (IMRT) plans across different hospital campuses. This highlights differences in treatment planning and can improve patient care consistency.

Keywords:
IMRTKnowledge based planningQuality assuranceRadiation therapy

Related Experiment Videos

Area of Science:

  • Medical Physics
  • Radiation Oncology
  • Health Services Research

Background:

  • Intensity modulated radiotherapy (IMRT) planning can exhibit variations across different clinical sites.
  • Ensuring consistent IMRT plan quality is crucial for equitable patient care.

Purpose of the Study:

  • To evaluate the capability of knowledge based planning (KBP) in detecting systematic differences in IMRT treatment plans among multiple campuses of a single institution.
  • To assess inter-campus variability in IMRT planning for esophageal cancer.

Main Methods:

  • A KBP model was developed using 58 IMRT plans from the main campus (MC).
  • The KBP model was applied to 172 prior patient plans from MC and four regional sites (RS).
  • Predicted dose-volume histogram (DVH) bands from the KBP model were compared against actual planned DVHs for organs at risk.

Main Results:

  • Regional Site 1 (RS1) showed the least plan similarity to the MC model, with reduced heart and stomach sparing and increased liver dose variability.
  • Regional Site 2 (RS2) plans were most consistent with the KBP model predictions.
  • Regional Site 3 (RS3) plans had higher variability but comparable overall DVHs to MC; RS4 lacked statistically significant findings due to small sample size.

Conclusions:

  • KBP effectively identifies subtle, systematic variations in IMRT planning practices between different institutional campuses.
  • These findings can guide efforts to standardize planning and enhance the consistency and quality of radiation therapy.
  • KBP serves as a valuable tool for quality assurance and improvement in multi-institutional radiotherapy settings.