Integrating Peritumoral and Intratumoral Radiomics with Deep Learning for Preoperative Prediction of Lymphovascular Invasion in Invasive Breast Cancer Using DCE-MRI.

IF 2.8 4区 医学 Q3 ONCOLOGY
Technology in Cancer Research & Treatment Pub Date : 2025-01-01 Epub Date: 2025-09-03 DOI:10.1177/15330338251374945
Qiaomei Zhao, Hui Zhang, Wei Xing
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引用次数: 0

Abstract

BackgroundLymphovascular invasion (LVI) is a critical factor in breast cancer (BC) prognosis and treatment planning, yet preoperative non-invasive assessment remains challenging. This research proposes the design and validation of a comprehensive artificial intelligence (AI) system that combines intratumoral and peritumoral radiomic analysis, deep learning (DL)-derived features, and clinical risk indicators extracted from dynamic contrast-enhanced MRI (DCE-MRI), with the goal of predicting LVI status in patients with BC.MethodsThis multi-institutional retrospective study included 496 IBC patients (training cohort: n = 344; validation cohort: n = 152). DCE-MRI scans were acquired preoperatively, and intratumoral/peritumoral (0-1, 1-3, 3-5 mm) radiomics features were extracted. A ResNet-50-based DL model was applied to 2.5D tumor slices, and clinical risk factors were identified via logistic regression. The least absolute shrinkage and selection operator (LASSO) method was employed to identify the most relevant features. The ensemble model was created by combining the Intra- Peri Fusion model with the clinically independent risk factors. Model performance was evaluated by sensitivity, specificity, AUC, and decision curve analysis (DCA).ResultsLVI was present in 33.8% and 32.7% of the training and validation cohorts. The SVM (Support Vector Machine) Intra-Peri Fusion model reached AUCs of 0.921 and 0.906, showing enhanced discriminative performance over single-region approaches. The ensemble model, derived from integrating a fusion model with clinical risk factors, demonstrated superior performance with AUCs of 0.951 (training) and 0.929 (validation) and high net benefit in DCA. Calibration curves confirmed excellent agreement between predicted and observed outcomes.ConclusionThe AI-driven ensemble model combining radiomics, DL, and clinical features enables accurate preoperative prediction of LVI in IBC, which holds potential for optimizing surgical planning and adjuvant therapy strategies.

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将肿瘤周围和肿瘤内放射组学与深度学习相结合,应用DCE-MRI预测浸润性乳腺癌淋巴血管浸润。
淋巴血管侵犯(LVI)是乳腺癌预后和治疗计划的关键因素,但术前非侵入性评估仍然具有挑战性。本研究提出了一种综合人工智能(AI)系统的设计和验证,该系统结合了肿瘤内和肿瘤周围的放射学分析、深度学习(DL)衍生的特征以及从动态对比增强MRI (DCE-MRI)中提取的临床风险指标,旨在预测BC患者的LVI状态。方法多机构回顾性研究纳入496例IBC患者(训练组:n = 344;验证组:n = 152)。术前进行DCE-MRI扫描,提取瘤内/瘤周(0- 1,1 - 3,3 -5 mm)放射组学特征。2.5D肿瘤切片采用基于resnet -50的DL模型,通过logistic回归分析临床危险因素。采用最小绝对收缩和选择算子(LASSO)方法识别最相关的特征。将腔内-围壁融合模型与临床独立的危险因素相结合,建立了整体模型。通过敏感性、特异性、AUC和决策曲线分析(DCA)来评估模型的性能。结果培训组和验证组的slvi患病率分别为33.8%和32.7%。SVM (Support Vector Machine) Intra-Peri Fusion模型的auc分别为0.921和0.906,比单区域方法的判别性能有所提高。该集成模型是将临床危险因素与融合模型相结合而得到的,在DCA中,auc分别为0.951(训练)和0.929(验证),具有较高的净效益。校准曲线证实了预测结果与观测结果之间的良好一致性。结论人工智能驱动的集合模型结合放射组学、DL和临床特征,可以准确预测IBC的LVI,为优化手术计划和辅助治疗策略提供可能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
4.40
自引率
0.00%
发文量
202
审稿时长
2 months
期刊介绍: Technology in Cancer Research & Treatment (TCRT) is a JCR-ranked, broad-spectrum, open access, peer-reviewed publication whose aim is to provide researchers and clinicians with a platform to share and discuss developments in the prevention, diagnosis, treatment, and monitoring of cancer.
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