2018年春の年会

講演情報

一般セッション

VI. 保健物理と環境科学 » 保健物理と環境科学

[2E01-04] 放射線医学1

2018年3月27日(火) 09:30 〜 10:35 E会場 (R1棟 R1-311)

座長:和田 隆宏 (関大)

09:45 〜 10:00

[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)

キーワード:Lung cancer, Optical flow, Principal Components Analysis, Radiotherapy

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.