Abstract
A cone beam computed tomography (CBCT) scanner integrated with a linear accelerator is a powerful tool for image guided radiotherapy. Respiratory motion, however, induces artifacts in CBCT, while the respiratory correlated procedures, developed to reduce motion artifacts in axial and helical CT are not suitable for such CBCT scanners. We have developed an alternative respiratory correlated procedure for CBCT and evaluated its performance. This respiratory correlated CBCT procedure consists of retrospective sorting in projection space, yielding subsets of projections that each corresponds to a certain breathing phase. Subsequently, these subsets are reconstructed into a four-dimensional (4D) CBCT dataset. The…
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662
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- FWCI
- 55.54
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- References
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Authors
4Topics & keywords
Topics
Keywords
- Cone beam computed tomography
- Imaging phantom
- Projection (relational algebra)
- Breathing
- Scanner
- Nuclear medicine
- Fluoroscopy
- Image-guided radiation therapy
UN Sustainable Development Goals
- Good health and well-being
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