A method to analyze the cord geometrical uncertainties during head and neck radiation therapy using cone beam CT.
Where this comes from
- Record sourced from PubMed, PMID 18950886.
- Also identified by DOI 10.1016/j.radonc.2008.08.013.
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Abstract
We developed a method to analyze quantitatively the residual cord geometrical uncertainties after image registration during head and neck radiation therapy by using sequential cone beam CT (CBCT). The geometrical centroid line of cervical spinal canal was computed to serve as a cord surrogate. We found that the cord motions were non-uniform from C1 to C6, and that the patterns of motion were variable across patients. This method has potential applications in monitoring cord setup accuracy and in designing treatment margins.
Medical subject headings
- Cone-Beam Computed Tomography
- Head and Neck Neoplasms
- Radiotherapy Planning, Computer-Assisted
- Spinal Cord