Related Experiment Video
Updated: Jun 10, 2026
Dynamic Lung Tumor Tracking for Stereotactic Ablative Body Radiation Therapy
Published on: June 7, 2015
[Stereotactic radiotherapy for lung cancer: Non-invasive real-time tumor tracking]
J E Bibault1, B Prevost, E Dansin
1Département universitaire de radiothérapie, université Lille II, CyberKnife Nord-Ouest, centre Oscar-Lambret, 3, rue Frédéric-Combemale, BP 307, 59020 Lille cedex, France.
Purpose:
Stereotactic radiation therapy using the CyberKnife(®) has been introduced in France in 2006. Two treatment modalities are currently available: the first one (Synchrony(®)) is a real-time fiducial-based target tracking system, while the other (Xsight Lung Tracking [XLT] System(®)) is completely fiducial-free.
Patients And Methods:
Sixty-eight patients were treated for a pulmonary tumor between June 2007 and November 2009. Since august 2008, the XLT System(®) was used for 26 patients. We report the necessary conditions for the XLT System (position, laterality and size of the tumor), the toxicity and outcome of this treatment.
Results:
Twenty-two patients were analyzed. Median follow-up was 6 months (min=3; max=16). Local control rate was 100%. The main toxicity was grade grade 1 pulmonary alveolitis (27%). No grade 3 or 4 toxicities were reported.
Conclusion:
The high local control rate and low toxicity obtained with the CyberKnife(®) XLT System(®) suggest that such treatment is an alternative for inoperable patients.
