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Related Experiment Video

Updated: Jun 10, 2026

Dynamic Lung Tumor Tracking for Stereotactic Ablative Body Radiation Therapy
08:17

Dynamic Lung Tumor Tracking for Stereotactic Ablative Body Radiation Therapy

Published on: June 7, 2015

Gating and tracking, 4D in thoracic tumours.

D Verellen1, T Depuydt, T Gevaert

  • 1Department of Radiotherapy, UZ Brussel, Oncologisch Centrum, Laarbeeklaan 101, 1090 Brussels, Belgium. dirk.verellen@uzbrussel.be

Cancer Radiotherapie : Journal De La Societe Francaise De Radiotherapie Oncologique
|August 3, 2010
PubMed
Summary

Image-guided radiation therapy (IGRT) enhances precision, enabling higher radiation doses for better tumor control and fewer complications. This technology facilitates advanced treatments like hypofractionation and adaptive radiotherapy for individualized cancer care.

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Area of Science:

  • Oncology
  • Medical Physics
  • Radiation Therapy

Background:

  • Tumor location uncertainty limits radiation therapy accuracy, necessitating larger treatment volumes and lower doses.
  • This increases exposure of surrounding normal tissues, potentially causing complications.
  • Image-guided radiation therapy (IGRT) addresses these limitations by improving targeting accuracy.

Purpose of the Study:

  • To explore the evolution and application of IGRT in optimizing radiation delivery.
  • To discuss advancements in tumor motion management for thoracic tumors.
  • To illustrate developments in hypofractionation and adaptive radiotherapy using specific system examples.

Main Methods:

  • Review of IGRT system evolution (NOVALIS, ExacTrac, VERO) at UZ Brussel.
  • Description of techniques progressing from motion-encompassing to respiratory gating and dynamic tracking.
  • Application examples for lung tumors and liver metastases.

Main Results:

  • IGRT enables optimized treatment volumes and higher, tumoricidal radiation doses.
  • Advanced IGRT facilitates new radiotherapy techniques like hypofractionation and dose painting.
  • Tumor motion management has evolved significantly, improving treatment precision.

Conclusions:

  • IGRT represents a paradigm shift towards 'individualized radiotherapy'.
  • Continuous technological advancements in IGRT are crucial for maximizing tumor control and minimizing side effects.
  • IGRT is essential for implementing complex, precise radiotherapy strategies, especially for moving tumors.