臨床医学における人間と大規模言語モデルの協働:系統的レビューとメタアナリシス
Guoyong Wang1, Kaijun Zhang2, Jiyue Jiang3
1Department of hemangioma and vascular malformation, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
NPJ digital medicine
|January 28, 2026
まとめ
人間とAIの協働は、臨床タスクの改善の可能性を示しているが、現在のエビデンスは予備的で不確かである。文書作成における高い事実誤認率に対処し、利益を確認するにはさらなる研究が必要である。
科学分野:
- 医療情報学; ヘルスケアにおける人工知能; 臨床意思決定支援システム
背景:
- 大規模言語モデル(LLM)は、臨床推論、文書作成、解釈を強化する可能性を提供する。; 人間とAIの協働(H+AI)は、ヘルスケアにおける新たなパラダイムである。; H+AIの効果を評価するには、系統的レビューの方法論が不可欠である。
研究 の 目的:
- 人間+AI(H+AI)ワークフローと人間のみ(H)ワークフローの効果を系統的に比較すること。; H+AIが診断精度、管理、文書作成の質、時間効率に与える影響を評価すること。; 臨床応用におけるH+AIの将来の研究分野を特定すること。
主な方法:
- PRISMA 2020ガイドラインに従った系統的文献レビュー。; 2025年6月28日まで4つのデータベースを検索し、10件の査読付き研究を対象とした。; 診断・解釈精度、複合スコア、時間効率を分析した。
主要な成果:
- 診断・解釈精度の向上において、人間+AIは肯定的ながら有意ではない傾向を示した(RR 1.59)。; 複合診断・管理スコアにおいて統計的に有意な改善が見られた(MD +4.88 pp)が、不確実性が高い(PI -31.65~41.42)。; 時間効率に有意な差はなかった(MD +0.4分)。; 文書作成の質は向上したが、事実誤認率は依然として高かった(約26~36%)。
結論:
- 臨床現場におけるH+AIの現在のエビデンスは予備的であり、不確実性が高い。; 文書作成における事実誤認が持続しており、潜在的な質的向上の恩恵を損なっている。; 安全性、エラー指標、不確実性の伝達に焦点を当てた、事前登録済みの実用的な試験が推奨される。
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