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  2. .TMU Publications / 北醫出版品(教師升等著作 / 教學實踐 / 學位論文)
  3. .博碩士學位論文
  4. 113學年度
  5. 使用深度學習與影像組學對甲狀腺超音波影像預測分析_基於多模態甲狀腺分化良惡性腫瘤
 
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使用深度學習與影像組學對甲狀腺超音波影像預測分析_基於多模態甲狀腺分化良惡性腫瘤

Other Title
Deep Learning and Radiomics-Based Predictive Analysis of Thyroid Ultrasound Images: Multi-Modal Approach for Differentiating Benign and Malignant Thyroid Nodules
Type
thesis
Date Issued
2025-06-24
Author(s)
吳東峻
Advisor
彭徐鈞
Subjects
系所名稱:醫學院人工智慧醫療碩士在職專班
Publisher
醫學院人工智慧醫療碩士在職專班
Description
學位別:碩士
口試委員:彭徐鈞; 邱泓文; 康峻宏
關鍵字:甲狀腺結節、深度學習、神經網路層、影像組學、機器學習
Abstract
背景:
甲狀腺癌為台灣常見癌症之一,其中女性之發生率尤為顯著。在臨床診斷中,超音波(Ultrasound)為評估甲狀腺結節之第一線工具,具備非侵襲性、無輻射、操作便利等優勢。然而,傳統超音波診斷結果高度依賴操作者之經驗,易產生主觀判讀差異,進而影響對於結節良惡性之分類準確性。為改善此問題,本研究導入深度學習(Deep Learning)與影像組學(Radiomics)技術,並結合臨床資料(Clinical Data)進行機器學習(Machine Learning)建模,期望提升模型之分類效能與可解釋性(Interpretability),以輔助臨床診斷並強化判讀一致性。
研究方法:
本研究採回溯性研究設計(Retrospective Design),收集財團法人長庚紀念醫院2003年至2020年共893筆病歷資料(良性460筆、惡性433筆),對應超音波影像共2,307張。影像經統一格式轉換與感興趣區域標註(Region of Interest, ROI)後,建立三種修改型預訓練學習深度模型(Pretrained Models),分別為InceptionV3、ResNet50與VGG19,進行分類訓練與測試。另應用影像組學技術擷取符合影像生物標記標準化倡議(Image Biomarker Standardisation Initiative, IBSI)之特徵,並結合具統計顯著性之臨床變項(如年齡、性別、甲狀腺球蛋白)進行機器學習模型建構與比較分析。
結果:
結果顯示,結合臨床與影像特徵之多模態模型(Multimodal Model)可顯著提升分類準確性與解釋性。於深度學習模型中,以InceptionV3表現最佳,其於外部測試集之接收者操作特徵曲線下面積(Area Under the Curve, AUC)高達96.7%。在機器學習模型中,則以集成袋裝決策樹(Ensemble Bagged Trees)效能最優,AUC達89.27%。
結論:
整體研究結果顯示,融合深度學習、影像組學與臨床變項之多模態人工智慧架構,具備潛在之輔助診斷能力,未來可望作為臨床決策支援系統(Clinical Decision Support System, CDSS)之應用於實際醫療場域。
URI
https://203.71.86.71/handle/123456789/9221

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