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Summary
Portal films acquired during daily radiation fractions accurately outline treatment fields and internal anatomy. This method provides valuable reference information for future treatment planning and verification.
Area of Science:
- Radiotherapy
- Medical Imaging
- Radiation Oncology
Background:
- Portal imaging is crucial for verifying radiation therapy accuracy.
- Accurate delineation of treatment fields and internal structures is essential for effective radiotherapy.
Purpose of the Study:
- To evaluate the utility of maintaining portal films in position throughout daily treatment fractions.
- To assess the value of portal films for delineating treatment fields and internal anatomy.
Main Methods:
- Portal films were acquired and maintained in position during daily radiation fractions.
- Image analysis focused on the ability to delineate treatment field borders and internal anatomical structures.
Main Results:
- Maintaining portal films throughout daily fractions yields good quality images.
- These films effectively delineate both the treatment field outlines and internal anatomical structures.
- The acquired films serve as valuable references for subsequent treatment sessions.
Conclusions:
- Continuous positioning of portal films during daily fractions is a beneficial practice in radiotherapy.
- Portal films provide essential anatomical and treatment field information for accurate and consistent radiation delivery.