Abstract
Optical coherence tomography (OCT) is of interest to visualize microscopic esophageal tumor extensions to improve tumor delineation for radiation therapy (RT) planning. Fiducial marker placement is a common method to ensure target localization during planning and treatment. Visualization of these fiducial markers on OCT permits integrating OCT and computed tomography (CT) images used for RT planning via image registration. We studied the visibility of 13 (eight types) commercially available solid and liquid fiducial markers in OCT images at different depths using dedicated esophageal phantoms and evaluated marker placement depth in clinical practice.
| Original language | English |
|---|---|
| Pages (from-to) | 6570-6582 |
| Number of pages | 13 |
| Journal | Medical Physics |
| Volume | 44 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - Dec 2017 |
Funding
This work was supported by The Netherlands organization for health and development (ZonMw), Elekta Ltd, and Nine-Point Medical, Inc. The authors thank IBA Dosimetry, Naslund Medical AB, CIVCO Medical Solutions, QLRAD Inc., Nanovi, and Augmenix Inc. for providing the fiducial markers. The authors also thank Peng Jin for useful discussion.
| Funders |
|---|
| Elekta Ltd |
| Netherlands organization for health and development |
| ZonMw |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- esophageal cancer
- fiducial marker
- image-guided radiation therapy (IGRT)
- optical coherence tomography (OCT)
- phantom
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