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Deep learning algorithms have become the golden standard for segmentation of medical imaging data. In most works, the variability and heterogeneity of real clinical data is acknowledged to still be a problem. One way to automatically…

图像与视频处理 · 电气工程与系统科学 2022-02-25 Arkadiy Dushatskiy , Gerry Lowe , Peter A. N. Bosman , Tanja Alderliesten

Cardiac motion estimation and segmentation play important roles in quantitatively assessing cardiac function and diagnosing cardiovascular diseases. In this paper, we propose a novel deep learning method for joint estimation of motion and…

计算机视觉与模式识别 · 计算机科学 2018-06-12 Chen Qin , Wenjia Bai , Jo Schlemper , Steffen E. Petersen , Stefan K. Piechnik , Stefan Neubauer , Daniel Rueckert

Recent advances in 3D fully convolutional networks (FCN) have made it feasible to produce dense voxel-wise predictions of volumetric images. In this work, we show that a multi-class 3D FCN trained on manually labeled CT scans of several…

Reliable and automatic segmentation of lung lobes is important for diagnosis, assessment, and quantification of pulmonary diseases. The existing techniques are prohibitively slow, undesirably rely on prior (airway/vessel) segmentation,…

计算机视觉与模式识别 · 计算机科学 2019-08-23 Abdullah-Al-Zubaer Imran , Ali Hatamizadeh , Shilpa P. Ananth , Xiaowei Ding , Demetri Terzopoulos , Nima Tajbakhsh

Cervical cancer is highly preventable, yet persistent barriers to screening limit progress toward elimination goals. Speculum-free devices that integrate imaging and sampling could improve access, particularly in low-resource settings, but…

Automated construction of surface geometries of cardiac structures from volumetric medical images is important for a number of clinical applications. While deep-learning-based approaches have demonstrated promising reconstruction precision,…

图像与视频处理 · 电气工程与系统科学 2021-09-15 Fanwei Kong , Nathan Wilson , Shawn C. Shadden

This work aims efficiently estimating the posterior distribution of kinetic parameters for dynamic positron emission tomography (PET) imaging given a measurement of time of activity curve. Considering the inherent information loss from…

医学物理 · 物理学 2023-10-25 Xiaofeng Liu , Thibault Marin , Tiss Amal , Jonghye Woo , Georges El Fakhri , Jinsong Ouyang

Our aim was to enhance visual quality and quantitative accuracy of dynamic positron emission tomography (PET)uptake images by improved image reconstruction, using sophisticated sparse penalty models that incorporate both 2D spatial+1D…

计算机视觉与模式识别 · 计算机科学 2019-06-17 Ida Häggström , Yizun Lin , Si Li , Andrzej Krol , Yuesheng Xu , C. Ross Schmidtlein

Automatic organ segmentation is an important prerequisite for many computer-aided diagnosis systems. The high anatomical variability of organs in the abdomen, such as the pancreas, prevents many segmentation methods from achieving high…

计算机视觉与模式识别 · 计算机科学 2015-09-17 Holger R. Roth , Amal Farag , Le Lu , Evrim B. Turkbey , Ronald M. Summers

Semantic image segmentation plays an important role in modeling patient-specific anatomy. We propose a convolution neural network, called Kid-Net, along with a training schema to segment kidney vessels: artery, vein and collecting system.…

计算机视觉与模式识别 · 计算机科学 2018-06-19 Ahmed Taha , Pechin Lo , Junning Li , Tao Zhao

Myocardial Velocity Mapping Cardiac MR (MVM-CMR) can be used to measure global and regional myocardial velocities with proved reproducibility. Accurate left ventricle delineation is a prerequisite for robust and reproducible myocardial…

图像与视频处理 · 电气工程与系统科学 2021-04-28 Mengmeng Kuang , Yinzhe Wu , Diego Alonso-Álvarez , David Firmin , Jennifer Keegan , Peter Gatehouse , Guang Yang

The automatic segmentation of pathological regions within whole-body PET-CT volumes has the potential to streamline various clinical applications such as diagno-sis, prognosis, and treatment planning. This study aims to address this…

图像与视频处理 · 电气工程与系统科学 2024-09-24 Mehdi Astaraki , Simone Bendazzoli

Recent attention-based volumetric segmentation (VS) methods have achieved remarkable performance in the medical domain which focuses on modeling long-range dependencies. However, for voxel-wise prediction tasks, discriminative local…

计算机视觉与模式识别 · 计算机科学 2024-10-03 Muhammad Hamza Sharif , Muzammal Naseer , Mohammad Yaqub , Min Xu , Mohsen Guizani

Many functional and structural neuroimaging studies call for accurate morphometric segmentation of different brain structures starting from image intensity values of MRI scans. Current automatic (multi-) atlas-based segmentation strategies…

图像与视频处理 · 电气工程与系统科学 2019-09-27 Dennis Bontempi , Sergio Benini , Alberto Signoroni , Michele Svanera , Lars Muckli

We present MedicDeepLabv3+, a convolutional neural network that is the first completely automatic method to segment cerebral hemispheres in magnetic resonance (MR) volumes of rats with lesions. MedicDeepLabv3+ improves the state-of-the-art…

图像与视频处理 · 电气工程与系统科学 2022-10-04 Juan Miguel Valverde , Artem Shatillo , Riccardo de Feo , Jussi Tohka

Achieving accurate and automated tumor segmentation plays an important role in both clinical practice and radiomics research. Segmentation in medicine is now often performed manually by experts, which is a laborious, expensive and…

图像与视频处理 · 电气工程与系统科学 2022-11-07 Zhengyong Huang , Sijuan Zou , Guoshuai Wang , Zixiang Chen , Hao Shen , Haiyan Wang , Na Zhang , Lu Zhang , Fan Yang , Haining Wangg , Dong Liang , Tianye Niu , Xiaohua Zhuc , Zhanli Hua

Accurate and robust abdominal multi-organ segmentation from CT imaging of different modalities is a challenging task due to complex inter- and intra-organ shape and appearance variations among abdominal organs. In this paper, we propose a…

图像与视频处理 · 电气工程与系统科学 2022-08-03 Minfeng Xu , Heng Guo , Jianfeng Zhang , Ke Yan , Le Lu

Precise segmentation and anatomical identification of the vertebrae provides the basis for automatic analysis of the spine, such as detection of vertebral compression fractures or other abnormalities. Most dedicated spine CT and MR scans as…

计算机视觉与模式识别 · 计算机科学 2019-02-15 Nikolas Lessmann , Bram van Ginneken , Pim A. de Jong , Ivana Išgum

In this paper, we present a new method to generate an instantaneous volumetric image using a single x-ray projection. To fully extract motion information hidden in projection images, we partitioned a projection image into small patches. We…

医学物理 · 物理学 2017-02-08 Yuan Xu , Hao Yan , Luo Ouyang , Jing Wang , Linghong Zhou , Laura Cervino , Steve B. Jiang , Xun Jia

Multi-frequency Electrical Impedance Tomography (mfEIT) is an emerging biomedical imaging modality to reveal frequency-dependent conductivity distributions in biomedical applications. Conventional model-based image reconstruction methods…

图像与视频处理 · 电气工程与系统科学 2021-05-27 Zhou Chen , Jinxi Xiang , Pierre Bagnaninchi , Yunjie Yang