[2E02] Optical flow and Principal Components Analysis combination for tumor motion analysis during X-ray radiotherapy | 2018年春の年会

2018年春の年会

2018年3月26日〜3月28日大阪大学吹田キャンパス

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2018年春の年会

2018年3月26日〜3月28日大阪大学吹田キャンパス

[2E02]Optical flow and Principal Components Analysis combination for tumor motion analysis during X-ray radiotherapy

*Michel POHL¹, Kazuyuki Demachi¹, Ritu Bhusal Chhatkuli¹, Kanabu Nawa², Akihiro Haga³, Mitsuru Uesaka¹(1. Graduate School of Engineering, The University of Tokyo, 2. Department of Radiology, The University of Tokyo Hospital, 3. Graduate School of Biomedical sciences, Department of Medical Image Informatics, Tokushima University)

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During lung cancer treatment with radiotherapy, positioning the X-ray beam correctly to minimize damage to healthy tissues is difficult because of the tumor motion due to breathing. The combination of optical flow and Principal Components Analysis on a clinical video enables to decompose the motion of the patient’s lungs into main trajectories, which can be used to reconstruct the initial image sequence.

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