Objective: To develop an automatic image normalization algorithm for intensity correction of images from breast dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) acquired by different MRI scanners with various imaging parameters, using only image information. Methods: DCE-MR images of 460 subjects with breast cancer acquired by different scanners were used in this study. Each subject had one T1-weighted pre-contrast image and three T1-weighted post-contrast images available. Our normalization algorithm operated under the assumption that the same type of tissue in different patients should be represented by the same voxel value. We used four tissue/material types as the anchors for the normalization: 1) air, 2) fat tissue, 3) dense tissue, and 4) heart. The algorithm proceeded in the following two steps: First, a state-of-the-art deep learning-based algorithm was applied to perform tissue segmentation accurately and efficiently. Then, based on the segmentation results, a subject-specific piecewise linear mapping function was applied between the anchor points to normalize the same type of tissue in different patients into the same intensity ranges. We evaluated the algorithm with 300 subjects used for training and the rest used for testing. Results: The application of our algorithm to images with different scanning parameters resulted in highly improved consistency in pixel values and extracted radiomics features. Conclusion: The proposed image normalization strategy based on tissue segmentation can perform intensity correction fully automatically, without the knowledge of the scanner parameters. Significance: We have thoroughly tested our algorithm and showed that it successfully normalizes the intensity of DCE-MR images. We made our software publicly available for others to apply in their analyses.
Transferring Learned Microcalcification Group Detection from 2D Mammography to 3D Digital Breast Tomosynthesis Using a Hierarchical Model and Scope-based Normalization Features
Stain Normalized Breast Histopathology Image Recognition using Convolutional Neural Networks for Cancer Detection
Center for Wireless Networks & Applications (WNA), Amrita Vishwa Vidyapeetham(阿姆里塔·维什瓦·维迪亚皮塔姆大学无线网络与应用中心);Valeo(法雷奥);Department of Computer Science and Engineering, Amrita Vishwa Vidyapeetham(阿姆里塔·维什瓦·维迪亚皮塔姆大学计算机科学与工程系);School of Computing and Electrical Engineering, IIT Mandi(印度理工学院曼迪分校计算与电气工程学院)
Response monitoring of breast cancer on DCE-MRI using convolutional neural network-generated seed points and constrained volume growing
Image Sciences Institute, University Medical Center Utrecht(乌得勒支大学医学中心影像科学研究所);Department of Radiology, Antoni van Leeuwenhoek Hospital - The Netherlands Cancer Institute(荷兰癌症研究所安东尼·范·列文虎克医院放射科)
BUSIS: A Benchmark for Breast Ultrasound Image Segmentation
Harbin Institute of Technology(哈尔滨工业大学);University of Idaho(爱达荷大学);Utah State University(犹他州立大学);Affiliated Hospital of Medical College Qingdao University(青岛大学医学院附属医院);Second Hospital of Hebei Medical University(河北医科大学第二医院)
Automatic lesion detection, segmentation and characterization via 3D multiscale morphological sifting in breast MRI
School of Information Technology and Electrical Engineering, University of Queensland(昆士兰大学信息技术与电气工程学院);Science and Engineering Faculty, Queensland University of Technology(昆士兰科技大学科学与工程学院)
BACH: Grand Challenge on Breast Cancer Histology Images
INESC TEC - Institute for Systems and Computer Engineering, Technology and Science(系统与计算机工程、技术与科学研究所);Faculty of Engineering of University of Porto(波尔图大学工程学院);Seek AI Limited(Seek AI有限公司);Icahn School of Medicine at Mount Sinai(西奈山伊坎医学院);The Mount Sinai Hospital(西奈山医院)
PFA-ScanNet: Pyramidal Feature Aggregation with Synergistic Learning for Breast Cancer Metastasis Analysis
The Chinese University of Hong Kong(香港中文大学);Imsight Medical Technology, Co., Ltd.(Imsight医疗科技有限公司);Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences(中国科学院深圳先进技术研究院)
Simple Methods for Scanner Drift Normalization Validated for Automatic Segmentation of Knee Magnetic Resonance Imaging - with data from the Osteoarthritis Initiative
Biomediq A/S(Biomediq公司);University of Copenhagen(哥本哈根大学)
Automatic Breast Lesion Classification by Joint Neural Analysis of Mammography and Ultrasound
School of Electrical Engineering, Tel-Aviv University(特拉维夫大学电气工程学院);The Manuel and Raquel Klachky Chair of Image Processing, School of Electrical Engineering, Tel-Aviv University(特拉维夫大学电气工程学院 Manuel and Raquel Klachky 图像处理教授职位);Diagnostic Imaging, Sheba Medical Center, affiliated to the Sackler School of Medicine, Tel-Aviv University(舍巴医疗中心诊断影像科,隶属于特拉维夫大学萨克勒医学院)
A New Automatic Change Detection Frame-work Based on Region Growing and Weighted Local Mutual Information: Analysis of Breast Tumor Response to Chemotherapy in Serial MR Images
Alzahra University(阿尔扎赫拉大学);The University of Winnipeg(温尼伯大学);Shahid Beheshti University of Medical Science(沙希德·贝赫什提医科大学)
ScanNet: A Fast and Dense Scanning Framework for Metastatic Breast Cancer Detection from Whole-Slide Images
The Chinese University of Hong Kong(香港中文大学);Imsight Medical Technology Inc(宜远智能医疗科技有限公司);Xiamen University(厦门大学);The Hong Kong Polytechnic University(香港理工大学)
淋巴结转移是乳腺癌最重要的诊断指标之一,传统上由病理学家在显微镜下观察。近年来,计算机组织学诊断已成为医学图像计算中发展最快的领域之一,它减轻了病理学家的工作量,降低了误诊率。然而,由于具有巨大分辨率的大规模数据和硬模拟的存在,从整个载玻片图像中自动检测淋巴结转移仍然是一个具有挑战性的问题。在本文中,我们提出了一种新的框架,利用全卷积网络进行有效的推理,以满足临床实践的速度要求,同时在不同的偏移下重建密集的预测,以确保对微观和宏观转移的准确检测。采用异步样本预取和硬否定挖掘策略,可以有效地训练网络。在2016年Camelyon Grand Challenge的基准数据集上进行的大量实验证实了我们方法的有效性。与最先进的方法相比,我们的方法在肿瘤定位任务上以更快的速度取得了优异的性能,并且在WSI分类任务上超过了人类的性能。
Predicting breast tumor proliferation from whole-slide images: the TUPAC16 challenge
Eindhoven University of Technology(埃因霍温理工大学);Beth Israel Deaconess Medical Center(贝斯以色列女执事医疗中心);Harvard Medical School(哈佛医学院);University Medical Center Utrecht(乌得勒支大学医学中心);Radboud University Medical Center(拉德堡德大学医学中心);Stanford University School of Medicine(斯坦福大学医学院);University of Heidelberg(海德堡大学);BIOQUANT;IPMB;DKFZ(德国癌症研究中心);The Harker School(哈克学校);ContextVision AB(ContextVision公司);IBM Research Zürich(IBM苏黎世研究院);IBM Research Brazil(IBM巴西研究院);United Institute of Informatics(联合信息学研究所);University of South Florida(南佛罗里达大学);University of Warwick(华威大学);Sectra(Sectra公司);Lunit Inc.(Lunit公司);Tsinghua University(清华大学);Microsoft Research(微软研究院);Beihang University(北京航空航天大学)
Automatic Application Level Set Approach in Detection Calcifications in Mammographic Image
National School of Medicine of Sfax(斯法克斯医学院);CES-Computer, Electronic And Smart engineering systems design Laboratory(计算机、电子与智能工程系统设计实验室);National School of Engineers of Sfax(斯法克斯工程师学院)
乳腺癌被认为是一个主要的健康问题,是世界上妇女死亡的最大原因。因此,在这十年中,乳腺癌是第二种最常见的癌症,就出现频率而言,也是第五种最常见的癌症相关死亡原因。为了减少放射科医师的工作量,已经提出了各种CAD系统;计算机辅助诊断(CADi)和计算机辅助检测(CADe)。在本文中,我们感兴趣的CADe工具,以帮助放射科医生检测癌症。建议的CADe是基于一个三步的工作流程,即检测,分析和分类。研究了基于边缘和区域准则的水平集方法的感兴趣区域自动检测问题。这种方法从放射科医生那里得到了良好的视觉信息。在此基础上,采用基于纹理特征的图像特征提取和基于多层感知(MLP)和k-近邻(KNN)的图像矢量分类方法,对图像进行了ACR(American College of Radiology)分类。此外,我们使用数字数据库筛选乳腺X射线摄影(DDSM)的实验和这些结果的准确性在60%和70%之间变化是可以接受的,必须加以改进,以帮助放射科医生。
A deep learning pipeline for breast cancer ki-67 proliferation index scoring
FEMTO-ST institute(弗朗什-孔泰电子、机械、热学与光学科学与技术研究所);Univ. Bourgogne Franche-Comte(勃艮第-弗朗什-孔泰大学);CNRS(法国国家科学研究中心);ENSMM(国立高等机械与微技术学院);Beihang University(北京航空航天大学);Hôpital Nord Franche-Comté(北弗朗什-孔泰医院);Batna2 University(巴特纳第二大学)
Ki-67增殖指数是一种重要的生物标志物,有助于病理学家诊断和选择适当的治疗方法。然而,Ki-67的自动评估是困难的,由于核重叠和复杂的变化,在其属性。本文提出了一种用于Ki-67精确自动计数的集成管道,其中突出了核分离技术的影响。首先,语义分割是通过结合挤压和激励Resnet和Unet算法从背景中提取细胞核。提取的细胞核,然后分为重叠和非重叠区域的基础上的八个几何和统计特征。随后提出了一种基于标记的分水岭算法,该算法仅适用于重叠区域以分离核。最后,使用Resnet 18从每个核块中提取深度特征,并通过随机森林分类器将其分类为阳性或阴性。在Hôpital Nord Franche-Comté医院病理科的数据集上验证了拟议管道的性能。
Accurate Recognition of Pneumonia and COVID-19 by Geometric Shape Normalization of Lung Region using Automatic Landmark Detection and Piecewise Affine Warping
Facultad de Ciencias de la Electrónica Benemérita Universidad Autónoma de Puebla(Benemérita自治大学电子科学学院)
The ACROBAT 2022 Challenge: Automatic Registration Of Breast Cancer Tissue
Karolinska Institutet(卡罗林斯卡学院);University of Turku(图尔库大学);University of Eastern Finland(东芬兰大学);Zealand University Hospital(西兰大学医院);Gestalt Diagnostics(格式塔诊断公司);Moffitt Cancer Center(莫菲特癌症中心);University of Applied Sciences Western Switzerland(瑞士西部应用科学大学);AGH University of Kraków(克拉科夫AGH科技大学);University of Geneva(日内瓦大学);University of Padova(帕多瓦大学);Fraunhofer Institute for Digital Medicine MEVIS(弗劳恩霍夫数字医学MEVIS研究所);University of Twente(特温特大学);Muroran Institute of Technology(室兰工业大学);Niigata University of Health and Welfare(新潟医疗福祉大学);Konica Minolta, Inc.(柯尼卡美能达株式会社);University of Alberta(阿尔伯塔大学);Alberta Machine Intelligence Institute(阿尔伯塔机器智能研究所);Karolinska University Hospital(卡罗林斯卡大学医院);Tampere University(坦佩雷大学)