Integrating Radiomics with Deep Learning Enhances Multiple Sclerosis Lesion Delineation
Skolkovo Institute of Science and Technology（斯克尔科夫科学与技术研究所）；Biomedically Informed Artificial Intelligence Laboratory（生物医学引导人工智能实验室）；University of Sharjah（沙迦大学）；College of Medicine and Health Sciences（医学与健康科学学院）；United Arab Emirates University（阿拉伯联合酋长国大学）
Nadezhda Alsahanova, Pavel Bartenev, Maksim Sharaev, Milos Ljubisavljevic, Taleb Al. Mansoori, Yauhen Statsenko
Background: Accurate lesion segmentation is critical for multiple sclerosis (MS) diagnosis, yet current deep learning approaches face robustness challenges.
Aim: This study improves MS lesion segmentation by combining data fusion and deep learning techniques.
Materials and Methods: We suggested novel radiomic features (concentration rate and Rényi entropy) to characterize different MS lesion types and fused these with raw imaging data. The study integrated radiomic features with imaging data through a ResNeXt-UNet architecture and attention-augmented U-Net architecture. Our approach was evaluated on scans from 46 patients (1102 slices), comparing performance before and after data fusion.
Results: The radiomics-enhanced ResNeXt-UNet demonstrated high segmentation accuracy, achieving significant improvements in precision and sensitivity over the MRI-only baseline and a Dice score of 0.774$\pm$0.05; p<0.001 according to Bonferroni-adjusted Wilcoxon signed-rank tests. The radiomics-enhanced attention-augmented U-Net model showed a greater model stability evidenced by reduced performance variability (SDD = 0.18 $\pm$ 0.09 vs. 0.21 $\pm$ 0.06; p=0.03) and smoother validation curves with radiomics integration.
Conclusion: These results validate our hypothesis that fusing radiomics with raw imaging data boosts segmentation performance and stability in state-of-the-art models.
Breast MRI radiomics and machine learning radiomics-based predictions of response to neoadjuvant chemotherapy -- how are they affected by variations in tumour delineation?
RimSet: Quantitatively Identifying and Characterizing Chronic Active Multiple Sclerosis Lesion on Quantitative Susceptibility Maps
Department of Electrical and Computer Engineering, Johns Hopkins University（约翰霍普金斯大学电气与计算机工程系）；Department of Radiology, Weill Medical College of Cornell University（康奈尔大学韦尔医学院放射科）；Sibley School of Mechanical and Aerospace Engineering, Cornell University（康奈尔大学西尔伯学校机械与航空航天工程系）；Department of Electrical and Computer Engineering, Cornell University（康奈尔大学电气与计算机工程系）
LaTIM, INSERM, UMR 1101, University Brest（拉蒂姆研究所、法国国家健康与医学研究院、布雷斯特大学）
Development of robust and accurate fully automated methods for medical image segmentation is crucial in clinical practice and radiomics studies. In this work, we contributed an automated approach for Head and Neck (H&N) primary tumor segmentation in combined positron emission tomography / computed tomography (PET/CT) images in the context of the MICCAI 2020 Head and Neck Tumor segmentation challenge (HECKTOR). Our model was designed on the U-Net architecture with residual layers and supplemented with Squeeze-and-Excitation Normalization. The described method achieved competitive results in cro…
Novel structural-scale uncertainty measures and error retention curves: application to multiple sclerosis
Lausanne University Hospital（洛桑大学医院）；University of Lausanne（洛桑大学）；University of Applied Sciences of Western Switzerland（瑞士西部应用科学大学）；University of Cambridge（剑桥大学）；Icahn School of Medicine at Mount Sinai（西奈山伊坎医学院）；University Hospital Basel（巴塞尔大学医院）；IBM Research Europe（IBM欧洲研究院）
Radiomics Boosts Deep Learning Model for IPMN Classification
Northwestern University（西北大学）；NYU Langone Health（纽约大学朗格尼医学中心）；Mayo Clinic（梅奥诊所）；Erasmus Medical Center（伊拉斯谟医学中心）；University of Illinois Chicago（伊利诺伊大学芝加哥分校）；Indiana University–Purdue University Indianapolis（印第安纳大学与普渡大学印第安纳波利斯联合分校）；Sheikh Shakhbout Medical City（谢赫·沙赫布特医疗城）；University of Catania（卡塔尼亚大学）
Precise Liver Tumor Segmentation in CT Using a Hybrid Deep Learning-Radiomics Framework
School of Information Science & Engineering, Shandong Normal University（信息科学与工程学院，山东师范大学）；Tajik State University of Law, Business and Politics（塔吉克国立法律、商业与政治大学）
UNISELF: A Unified Network with Instance Normalization and Self-Ensembled Lesion Fusion for Multiple Sclerosis Lesion Segmentation
Department of Electrical and Computer Engineering, Johns Hopkins University, Baltimore, MD 21218, USA（电气与计算机工程系，约翰霍普金斯大学）；Department of Electrical and Computer Engineering, Vanderbilt University, Nashville, TN 37215, USA（电气与计算机工程系，范德比尔特大学）；Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD 21287, USA（神经病学系，约翰霍普金斯医学院）；Department of Computer Science, Johns Hopkins University, Baltimore, MD 21218, USA（计算机科学系，约翰霍普金斯大学）；Department of Radiology, Uniformed Services University of the Health Sciences, Bethesda, MD, 20814, USA（放射学系，统一服务大学健康科学学院）
ARC Training Centre for Innovative BioEngineering（ARC创新生物工程培训中心）
Distant metastases (DM) refer to the dissemination of tumors, usually, beyond the organ where the tumor originated. They are the leading cause of death in patients with soft-tissue sarcomas (STSs). Positron emission tomography-computed tomography (PET-CT) is regarded as the imaging modality of choice for the management of STSs. It is difficult to determine from imaging studies which STS patients will develop metastases. 'Radiomics' refers to the extraction and analysis of quantitative features from medical images and it has been employed to help identify such tumors. The state-of-the-art in ra…
Supervised machine learning algorithms, especially in the medical domain, are affected by considerable ambiguity in expert markings. In this study we address the case where the experts' opinion is obtained as a distribution over the possible values. We propose a soft version of the STAPLE algorithm for experts' markings fusion that can handle soft values. The algorithm was applied to obtain consensus from soft Multiple Sclerosis (MS) segmentation masks. Soft MS segmentations are constructed from manual binary delineations by including lesion surrounding voxels in the segmentation mask with a r…
Exploiting XAI maps to improve MS lesion segmentation and detection in MRI
University Hospital Basel（巴塞尔大学医院）；University of Basel（巴塞尔大学）；Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB)（巴塞尔临床神经免疫学与神经科学研究中心）；HES-SO Valais-Wallis University of Applied Sciences and Arts Western Switzerland（瑞士西部高等专业学院瓦莱州瓦利斯分校）；CIBM Center for Biomedical Imaging（生物医学成像中心（CIBM））
本文提出从 MS 病灶显著性映射中提取放射组学特征，并训练逻辑回归区分 TP/FP，显著提升 3D U-Net 的 MRI 病灶分割检测性能。
