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Related Concept Videos

Mutations01:35

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Mutations are changes in the sequence of DNA. These changes can occur spontaneously or they can be induced by exposure to environmental factors. Mutations can be characterized in a number of different ways: whether and how they alter the amino acid sequence of the protein, whether they occur over a small or large area of DNA, and whether they occur in somatic cells or germline cells.
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Related Experiment Video

Updated: May 2, 2026

Stereotactic Radiosurgery for Gynecologic Cancer
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Red shell- high risk normal tissue in stereotactic radiosurgery.

Jun Yang1,2, Weihua Qi1,2, Lei Wang1

  • 1Junxin Precision Oncology Group Foshan Guangdong China.

Precision Radiation Oncology
|May 8, 2025
PubMed
Summary

A new "Red Shell" concept quantifies normal tissue damage in stereotactic radiosurgery/body radiation therapy (SRS/SBRT). It uses biological equivalent dose (BED) to guide treatment planning and minimize radiation side effects.

Keywords:
Red Shellbiological equivalent dosenormal tissuestereotactic radiosurgerytoxicity

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Area of Science:

  • Radiation Oncology
  • Medical Physics
  • Radiotherapy Planning

Background:

  • High prescription doses in Stereotactic Radiosurgery/Stereotactic Body Radiation Therapy (SRS/SBRT) can exceed normal tissue dose constraints.
  • Quantifying and understanding normal tissue damage is crucial for optimizing SRS/SBRT treatments.

Purpose of the Study:

  • To introduce and define the "Red Shell" concept for quantifying normal tissue dose in SRS/SBRT.
  • To explore the clinical implications of the Red Shell concept in radiotherapy planning.

Main Methods:

  • Utilizing the biological equivalent dose (BED) concept to define the Red Shell.
  • Integrating biological factors (serial/parallel organs) and physics factors (dose gradient, distribution, fractionation) to interpret the Red Shell.

Main Results:

  • The Red Shell concept provides a framework for defining and quantifying radiation dose to surrounding normal tissues.
  • The study discusses the interpretation of the Red Shell by considering various radiobiological and dosimetric parameters.

Conclusions:

  • The Red Shell concept offers a valuable tool for assessing and managing normal tissue complication probability in SRS/SBRT.
  • Implementing the Red Shell concept can aid in improving treatment plan optimization and reducing radiation-induced toxicity.