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This paper proposes a method on path planning for mobile robots in the environment with some unknown obstacles. The whole planner consists of three parts. First, generate the global path from the given start pose to goal pose according to the known map of environment. Then when robot following the planned path, the module of threat assessment check whether or nor there are unknown obstacles in the...
To realize dose deformation and accumulation using image registration technology, and evaluate the anatomic changes and corresponding dosimetric variations for patients with nasopharyngeal carcinoma (NPC). 15 patients with NPC treated with IMRT were selected in this study, the original treatment plan(Plan1(CT1)) based on the first CT scan(CT1) and the second plan(Plan2(CT2)) based on the repeated...
The purpose of this study is to evaluate the dosimetric gain of the adaptive radiotherapy (ART) over conventional intensity modulated radiation therapy (IMRT) by using as the deformable image registration technique for dose mapping and summation to assess the dosimetric difference on target and organs at risk (OARs) dose. We retrospectively collected planning CT images and fractional CT images from...
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