Cyberspace Institute of Advanced Technology, Guangzhou University, Guangzhou 510006, China.
Department of Biomedical Engineering, The University of Reading, RG6 6AY, UK.
Comput Methods Programs Biomed. 2022 Feb;214:106510. doi: 10.1016/j.cmpb.2021.106510. Epub 2021 Nov 11.
BACKGROUND AND OBJECTIVE: This paper aims to overview multidimensional mining algorithms in relation to Magnetic Resonance Imaging (MRI) radiogenomics for computer aided detection and diagnosis of breast tumours. The work also aims to address a new problem in radiogenomics mining: how to combine structural radiomics information with non-structural genomics information for improving the accuracy and efficacy of Neoadjuvant Chemotherapy (NAC). METHODS: This requires the automated extraction of parameters from non-structural breast radiomics data, and finding feature vectors with diagnostic value, which then are combined with genomics data. In order to address the problem of weakly labelled tumour images, a Generative Adiversarial Networks (GAN) based deep learning strategy is proposed for the classification of tumour types; this has significant potential for providing accurate real-time identification of tumorous regions from MRI scans. In order to efficiently integrate in a deep learning framework different features from radiogenomics datasets at multiple spatio-temporal resolutions, pyramid structured and multi-scale densely connected U-Nets are proposed. A bidirectional gated recurrent unit (BiGRU) combined with an attention based deep learning approach is also proposed. RESULTS: The aim is to accurately predict NAC responses by combining imaging and genomic datasets. The approaches discussed incorporate some of the latest developments in of current signal processing and artificial intelligence and have significant potential in advancing and provide a development platform for future cutting-edge biomedical radiogenomics analysis. CONCLUSIONS: The association of genotypic and phenotypic features is at the core of the emergent field of Precision Medicine. It makes use of advances in biomedical big data analysis, which enables the correlation between disease-associated phenotypic characteristics, genetics polymorphism and gene activation to be revealed.
背景与目的:本文旨在综述与磁共振成像(MRI)放射组学相关的多维挖掘算法,以辅助计算机检测和诊断乳腺癌。本文还旨在解决放射组学挖掘中的一个新问题:如何将结构放射组学信息与非结构基因组学信息相结合,以提高新辅助化疗(NAC)的准确性和疗效。
方法:这需要从非结构乳腺放射组学数据中自动提取参数,并找到具有诊断价值的特征向量,然后将这些特征向量与基因组学数据相结合。为了解决肿瘤图像弱标记的问题,本文提出了一种基于生成对抗网络(GAN)的深度学习策略,用于肿瘤类型的分类;这对于从 MRI 扫描中准确实时识别肿瘤区域具有重要意义。为了在深度学习框架中高效地整合来自多个时空分辨率的放射组学数据集的不同特征,提出了金字塔结构和多尺度密集连接 U-Net。还提出了一种双向门控循环单元(BiGRU)与基于注意力的深度学习方法相结合的方法。
结果:本文旨在通过结合成像和基因组数据集来准确预测 NAC 反应。所讨论的方法结合了当前信号处理和人工智能的最新进展,在推进和提供未来前沿生物医学放射组学分析的发展平台方面具有重要潜力。
结论:基因型和表型特征的关联是精准医学这一新兴领域的核心。它利用了生物医学大数据分析的进展,使疾病相关表型特征、遗传多态性和基因激活之间的相关性得以揭示。
Comput Methods Programs Biomed. 2022-2
Int J Comput Assist Radiol Surg. 2020-9
J Magn Reson Imaging. 2016-6
J Magn Reson Imaging. 2020-12
Artif Intell Med. 2019-12-23
Front Neurosci. 2023-11-9
Breast Cancer (Dove Med Press). 2023-8-15
Bioengineering (Basel). 2023-1-28
Diagnostics (Basel). 2022-12-9