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arXiv 2603.06147cs.CV

多模态生成模型用于非小细胞肺癌治疗进展的纵向预测

Longitudinal NSCLC Treatment Progression via Multimodal Generative Models

Unit of Artificial Intelligence and Computer Systems, Department of Engineering, Università Campus Bio-Medico di Roma, Italy(人工智能与计算机系统单位,工程系,罗马大学生物医学学院);Multi-Specialist Clinical Institute for Orthopaedic Trauma Care (COT), Messina, Italy(骨科创伤护理多学科临床研究所(COT),意大利Messina);Department of Diagnostics and Intervention, Radiation Physics, Biomedical Engineering, Umeå University, Sweden(诊断与介入系,放射物理,生物医学工程,乌梅大学,瑞典);Operative Research Unit of Radiation Oncology, Fondazione Policlinico Universitario Campus Bio-Medico, Rome, Italy(放射肿瘤手术研究单位,大学生物医学学院基金会,罗马,意大利);Research Unit of Radiation Oncology, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Italy(放射肿瘤研究单位,医学与外科系,罗马大学生物医学学院,意大利);Department of Biomedical Engineering, University of Basel, Allschwil, Switzerland(生物医学工程系,巴塞尔大学,瑞士Allschwil);Department of Naval, Electrical, Electronics and Telecommunications Engineering, University of Genoa, Italy(海军、电气、电子与电信工程系,热那亚大学,意大利)
Massimiliano Mantegna, Elena Mulero Ayllón, Alice Natalina Caragliano, Francesco Di Feola, Claudia Tacconi, Michele Fiore, Edy Ippolito, Carlo Greco, Sara Ramel… 展开作者

Massimiliano Mantegna, Elena Mulero Ayllón, Alice Natalina Caragliano, Francesco Di Feola, Claudia Tacconi, Michele Fiore, Edy Ippolito, Carlo Greco, Sara Ramella, Philippe C. Cattin, Paolo Soda, Matteo Tortora, Valerio Guarrasi

AI总结:

本研究提出虚拟治疗框架,利用多模态生成模型预测NSCLC治疗进展,验证扩散模型在生成稳定肿瘤演变轨迹方面的优势。

摘要:

预测放疗期间肿瘤演变是临床关键挑战,尤其是在纵向变化由解剖结构和治疗共同驱动的情况下。在本工作中,我们引入了一个虚拟治疗(VT)框架,将非小细胞肺癌(NSCLC)进展 formulation 为一种剂量感知的多模态条件图像到图像翻译问题。给定一次CT扫描、基线临床变量和指定的放射剂量增量,VT旨在合成合理的随访CT图像,反映治疗引起的解剖变化。我们评估了所提出的框架在222名III期NSCLC患者纵向数据集上的性能,该数据集包含895次在不规则临床安排下获取的CT扫描。生成过程条件于所交付的剂量增量以及人口统计学和肿瘤相关临床变量。代表性基于GAN和扩散模型的模型在2D和2.5D配置中进行了基准测试。定量和定性结果表明,基于扩散模型的模型在多模态、剂量感知条件下受益更一致,产生更稳定和解剖学上合理的肿瘤演变轨迹,优于基于GAN的基线模型,支持VT作为NSCLC中计算机模拟治疗监测和自适应放疗研究工具的潜力。

英文摘要:

Predicting tumor evolution during radiotherapy is a clinically critical challenge, particularly when longitudinal changes are driven by both anatomy and treatment. In this work, we introduce a Virtual Treatment (VT) framework that formulates non-small cell lung cancer (NSCLC) progression as a dose-aware multimodal conditional image-to-image translation problem. Given a CT scan, baseline clinical variables, and a specified radiation dose increment, VT aims to synthesize plausible follow-up CT images reflecting treatment-induced anatomical changes. We evaluate the proposed framework on a longitudinal dataset of 222 stage III NSCLC patients, comprising 895 CT scans acquired during radiotherapy under irregular clinical schedules. The generative process is conditioned on delivered dose increments together with demographic and tumor-related clinical variables. Representative GAN-based and diffusion-based models are benchmarked across 2D and 2.5D configurations. Quantitative and qualitative results indicate that diffusion-based models benefit more consistently from multimodal, dose-aware conditioning and produce more stable and anatomically plausible tumor evolution trajectories than GAN-based baselines, supporting the potential of VT as a tool for in-silico treatment monitoring and adaptive radiotherapy research in NSCLC.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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