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Radiation dose-volume effects in the esophagus.
Maria Werner-Wasik1, Ellen Yorke, Joseph Deasy
1Department of Radiation Oncology, Thomas Jefferson University Hospital, Philadelphia, PA 19107-5097, USA. maria.werner-wasik@jeffersonhospital.org
International Journal of Radiation Oncology, Biology, Physics
|February 23, 2010
Summary
This review examines esophageal radiation toxicity in non-small-cell lung cancer patients treated with three-dimensional conformal radiotherapy. It identifies clinical and dosimetric factors linked to acute and late toxicities.
Area of Science:
- Oncology
- Radiation Oncology
- Medical Physics
Background:
- Esophageal toxicity is a significant concern in lung cancer radiotherapy.
- Three-dimensional conformal radiotherapy (3D-CRT) allows for precise dose delivery.
- Understanding factors influencing toxicity is crucial for treatment optimization.
Purpose of the Study:
- To review existing literature on esophageal radiation toxicity.
- To correlate clinical variables with toxicity outcomes.
- To analyze quantitative dose and dose-volume measures related to toxicity.
Main Methods:
- Systematic review of publications.
- Analysis of clinical data and patient outcomes.
- Evaluation of dose and dose-volume histogram (DVH) parameters from 3D-CRT plans.
Main Results:
- Multiple clinical parameters are associated with acute and late esophageal toxicity.
- Specific dose and dose-volume metrics derived from 3D-CRT correlate with toxicity.
- The relationship between radiation dose and toxicity is complex and multifactorial.
Conclusions:
- Clinical and dosimetric factors play a role in esophageal radiation toxicity.
- Further research is needed to refine predictive models and optimize treatment planning.
- Minimizing esophageal dose may reduce the incidence and severity of toxicity.
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