2026-01-09 理化学研究所,日本医科大学,東北大学
図1 研究手法のフローチャート
<関連情報>
- https://www.riken.jp/press/2026/20260109_1/index.html
- https://www.nature.com/articles/s41746-025-02193-x
臨床的に情報に基づいた中間推論により、限定された設定での機械学習による一般化可能な前立腺癌の予後予測が可能になる Clinically informed intermediate reasoning enables generalizable prostate cancer prognostication through machine learning in limited settings
Jun Akatsuka,Kotaro Tsutsumi,Mami Takadate,Yasushi Numata,Hiromu Morikawa,Atsushi Marugame,Hayato Takeda,Yuki Endo,Yuka Toyama,Takayuki Takahashi,Kaori Ono,Junya Iwazaki,Ryuji Ohashi,Akira Shimizu,Tomoharu Kiyuna,Maki Ogura,Masao Ueki,Takuma Kato,Toshiyuki China,Mikio Sugimoto,Hisamitsu Ide,Naoto Sassa,Naonori Ueda,Shigeo Horie,… Yoichiro Yamamoto
npj Digital Medicine Published:03 December 2025
DOI:https://doi.org/10.1038/s41746-025-02193-x
Abstract
Machine learning has shown promise in medical image classification. However, its generalizability remains challenging. Here, we show that data-efficient pre-surgical prognostication of prostate cancer from biopsy specimens is enabled by versatile feature extraction from whole-mount histopathology and a clinically informed intermediate reasoning step. With data from multiple institutions, our pipeline resolved dual-domain shifts across specimen types and institutions and achieved consistent external validation, reinforced by comprehensive analyses of generalizability. This highlights the robustness of our prognostic approach when compared to the Gleason grading system. We establish an equitable, interpretable, and clinically applicable framework, supporting actionable decisions for prognosis and treatment planning, even in limited real-world clinical environments.
