乳がんの罹患率は増加を続けており、乳がん患者のQOL(Quality of life) 向上のためには、早期発見や治療効果の観察などのために用いられる診断計測技術が重要になります。近赤外分光計測は、他の波長に比べて生体透過性が高い700 nm～1100 nmの近赤外光を用いて生体内の光吸収・散乱特性やヘモグロビン濃度、組織酸素飽和度を非侵襲で測定できる技術であり、乳がんの成長や縮小に伴う変化など、早期発見や薬物療法に対する反応の観察への応用が期待されています。
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