時間分解蛍光・拡散反射(TRF-DR)分光法による乳房組織の不均一性分類および腫瘍断端評価
Jigar Lad1, Erica Dao1, Gabriella Gohla2,3
1Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada.
Journal of biophotonics
|February 1, 2026
まとめ
新しい時間分解蛍光・拡散反射(TRF-DR)分光法システムは、手術中に乳がん断端を正確に特定するのに有望であることが示されている。この技術は、外科医が悪性腫瘍組織と健康な組織を区別するのに役立ち、再切除率を低下させる可能性がある。
科学分野:
- 生体医用光学
- 腫瘍外科
- 医用分光法
背景:
- 早期乳がんにおける高い再切除率は、外科的断端の描写の困難さに起因しています。
- 不明瞭な腫瘍境界は、外科医にとって大きな課題であり、患者の転帰に影響を与えます。
研究 の 目的:
- 腫瘍が存在する不均一な組織領域の分類のための時間分解蛍光・拡散反射(TRF-DR)分光法システムの実現可能性を評価すること。
- 乳がん手術における断端評価のための術中ツールとしてのシステムの可能性を評価すること。
主な方法:
- 病理医が割り当てたパーセンテージに基づいて組織組成(腫瘍、線維腺、脂肪)を分類しました。
- 重み付きロジスティック回帰および主成分分析(PCA)を使用してデータ分析を行いました。
- 病理医が割り当てたパーセンテージに基づいて組織組成(腫瘍、線維腺、脂肪)を分類しました。
- 4818の測定値(凍結された73の術前患者サンプルから)を利用しました。
主要な成果:
- TRF-DRシステムは4つの主成分でトレーニングされ、感度77%、特異度68%を達成しました。
- パフォーマンスは、断端評価における現在の臨床技術と同等でした。
- システムは、速度、携帯性、費用対効果を示しました。
結論:
- TRF-DR分光法システムは、乳がんの外科的断端を評価するための効果的な術中ツールとして大きな可能性を示しています。
- この技術は、外科医が明確な断端を得るのを助け、それによって再切除手術の必要性を減らすことができます。
- システムの特性により、手術精度を向上させるための実用的で経済的な選択肢となります。
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