Publications by authors named "Nanami Hira"
Article Synopsis
- The study investigates the connection between lung tumor movement and the position of fiducial markers during stereotactic body radiotherapy (SBRT) by utilizing four-dimensional computed tomography (4DCT) images.
- It analyzes data from 31 patients, comparing respiratory movement patterns for tumors in the upper lobe versus the middle and lower lobes across various directions and gating windows.
- Results indicate that the upper group has significantly lower cross-correlation coefficients than the middle and lower lobe group, suggesting the need for careful selection of fiducial markers to improve treatment accuracy and reduce the risk of unplanned irradiation.
Background: Intensity-modulated radiotherapy (IMRT), which allows generating steep dose gradients, is a beneficial treatment for companion animals with adjacent target and risk organs. IMRT is essential for high setup accuracy for avoiding overdose to risk organs, and optimal radiotherapy is important for evaluating the setup accuracy of companion animals.
Aim: To use an immobilization device to evaluate setup errors in radiotherapy for companion animals.