Measurement of lung tumor motion using respiration-correlated CT
Carcinoma, Non-Small-Cell Lung
Tomography, X-Ray Computed
Respiration-correlated CT can be performed with currently available CT equipment and acquisition settings. RCCT provides not only three-dimensional information on intrafractional tumor motion and deformation, but also allows estimates of interfractional tumor variation when combined with radiographic measurements of diaphragm position variation during treatment.