2A2-1 超音波脳画像システムのためのゆらぎ合成(OS11:医療・ヘルスケア応用(1))

概要

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In the human brain diagnostic system, the imaging of the brain is essential. This paper proposes a YURAGI-Synthesis for brain imaging under the skull. In it, we employ 1.0MHz and 0.5MHz ultrasonic waves. We consider the weighted sum of these waves and attempt to extract the skull depth and image the sulcus under it. We add 1.0MHz and 0.5MHz, and we add the waves of 1.0MHz and Gaussian noise as the YURAGI- Synthesis. As the results, we successfully calculated skull thickness and extracted the sulcus width within the error of 5.86mm and depth within the error of 1.94mm. As for imaging the sulcus under the skull, the highest effectiveness of the synthesized wave is 96.30% when the weight of 0.5MHz waves is 0.60, and the one of YURAGI-Analysis wave is 97.15% when the weight is 0.003. Thus, YURAGI-Synthesis is useful to this study.
一般社団法人日本機械学会の論文
2011-09-01