Skin surface markers for stereotactic body radiation therapy of sternal metastasis

Hossein Hemmatazad; Daniel Schmidhalter; Olgun Elicin; Daniel M Aebersold; Evelyn Herrmann

doi:10.1016/j.rpor.2019.05.005

Skin surface markers for stereotactic body radiation therapy of sternal metastasis

Rep Pract Oncol Radiother. 2019 Jul-Aug;24(4):322-324. doi: 10.1016/j.rpor.2019.05.005. Epub 2019 May 30.

Authors

Hossein Hemmatazad¹, Daniel Schmidhalter², Olgun Elicin¹, Daniel M Aebersold¹, Evelyn Herrmann¹

Affiliations

¹ Department of Radiation Oncology, Bern University Hospital, University of Bern, 3010 Bern, Switzerland.
² Division of Medical Radiation Physics and Department of Radiation Oncology, Bern University Hospital, University of Bern, 3010 Bern, Switzerland.

Abstract

Stereotactic body radiation therapy is an effective and safe treatment modality for bone metastasis which allows clinicians to accurately target lesions to high doses while minimizing dose to organs at risk. The commercially available CyberKnife^® Xsight™ Spine Tracking System (Accuray, Inc., Sunnyvale, CA) tracks static skeletal structures and eliminates the need for implanted fiducial markers (FMs). However, the Xsight™ Spine Tracking system is not appropriate for bone metastases outside the spine, which are moving due to respiration and ,typically, FMs have to be implanted close to the lesion. These FMs will be used to track the dynamic target. For targets close to the surface, non-invasive fixation of the FMs to the patient's skin could be an option.

Keywords: CyberKnife; Fiducial marker; SBRT; Skin.

Publication types

Case Reports