JP2021104140A - 医用情報処理装置、医用情報処理方法、及び医用情報処理プログラム - Google Patents
医用情報処理装置、医用情報処理方法、及び医用情報処理プログラム Download PDFInfo
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Abstract
Description
一般に、学習フェーズで用いられるデータ(例えば、医用画像)の数やデータの属性は、生成される学習済みモデルの推定精度に影響を与える。
(医用情報処理装置の構成)
ディスプレイ50は、液晶ディスプレイパネル、プラズマディスプレイパネル、有機ELパネル等の表示デバイスである。
(医用情報処理装置の動作)
この他、代替処理として、医用画像をユーザが目視によって診断することを促す表示や、他の医療機関を紹介する表示、を行ってもよい。
20 処理回路
30 記憶回路
40 入力インターフェース
50 ディスプレイ
201 教師データ取得機能
202 学習機能
203 第1取得機能
204 第2取得機能
205 診断対象入力データ取得機能
206 当てはまり度算出機能
207 適用方法制御機能
208 モデル処理機能
209 代替処理機能
300 学習済みモデル
Claims (12)
- 複数の教師データを学習することで生成された学習済みモデルを用いた処理を行う処理部と、
前記学習済みモデルの生成に用いられた前記教師データの学習対象の被検体に関する属性を示す第1属性データを取得する第1取得部と、
診断対象の被検体の属性を示す第2属性データを取得する第2取得部と、
前記第1属性データと前記第2属性データの一致の程度を示す指標である当てはまり度を基に、前記診断対象の入力データに対する前記処理部における処理を制御する制御部と、
を備える医用情報処理装置。 - 前記処理部が行う処理は、前記診断対象の被検体の医用画像及び生体情報の少なくとも1つを前記学習済みモデルに入力し、前記被検体の推定診断結果を出力する処理である、
請求項1に記載の医用情報処理装置。 - 前記制御部は、前記当てはまり度が前記学習済みモデルに当てはまる条件を満たすとき、前記診断対象の被検体の入力データを前記学習済みモデルに入力し、前記学習済みモデルを用いた処理を行うよう前記処理部を制御する一方、前記当てはまり度が前記条件を満たさないとき、ユーザへ警告を出す処理、又は、前記学習済みモデルを用いない他の代替処理を行う、
請求項2に記載の医用情報処理装置。 - 前記制御部が行う前記代替処理は、機械学習に基づかないコンピュータ支援診断を行う処理を含む、
請求項3に記載の医用情報処理装置。 - 前記制御部が行う前記代替処理は、a)前記医用画像をユーザが目視によって診断することを示唆する表示、又は、b)他の医療機関を紹介する表示、に関する処理を含む、
請求項3に記載の医用情報処理装置。 - 前記当てはまり度は、複数の前記第1属性データの分布範囲と前記第2属性データとの距離に基づいて算出される、
請求項1乃至5のいずれか1項に記載の医用情報処理装置。 - 前記被検体の属性の種類は複数であり、
前記当てはまり度は、前記被検体の属性の種類毎に算出される複数の前記第1属性データの分布範囲と、前記第2属性データが前記分布範囲の外となる属性の種類の数とに基づいて決まる、
請求項1乃至5のいずれか1項に記載の医用情報処理装置。 - 前記被検体の属性の種類は複数であり、
前記制御部は、前記被検体の属性が特定の属性であり、当該特定の属性の前記当てはまり度が所定値以下のとき、ユーザへ警告を出す処理、又は、前記学習済みモデルを用いない他の代替処理を行う、
請求項1に記載の医用情報処理装置。 - 前記被検体の属性の種類は、年齢、性別、体重、人種、出生地域、生活習慣の種類、及び、血液検査値の少なくとも1つである、
請求項1乃至8のいずれか1項に記載の医用情報処理装置。 - 前記処理部が行う処理は、前記診断対象の被検体の撮像生データを前記学習済みモデルに入力し、前記被検体の再構成画像を出力する処理である、
請求項1又は2に記載の医用情報処理装置。 - 複数の教師データを学習することで生成された学習済みモデルを用いた処理を行い、
前記学習済みモデルの生成に用いられた前記教師データの学習対象の被検体に関する属性を示す第1属性データを取得し、
診断対象の被検体の属性を示す第2属性データを取得し、
前記第1属性データと前記第2属性データの一致の程度を示す指標である当てはまり度を基に、前記診断対象の入力データに対する処理を制御する、
医用情報処理方法。 - 複数の教師データを学習することで生成された学習済みモデルを用いた処理を行うステップと、
前記学習済みモデルの生成に用いられた前記教師データの学習対象の被検体に関する属性を示す第1属性データを取得するステップと、
診断対象の被検体の属性を示す第2属性データを取得するステップと、
前記第1属性データと前記第2属性データの一致の程度を示す指標である当てはまり度を基に、前記診断対象の入力データに対する処理を制御するステップと、
をコンピュータに実行させる、医用情報処理プログラム。
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