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Diffeomorphic deformable image registration ensures smooth invertible transformations across inspiratory and expiratory chest CT scans. Yet, in practice, deep learning-based diffeomorphic methods struggle to capture large deformations…

Image and Video Processing · Electrical Eng. & Systems 2024-11-13 Muhammad F. A. Chaudhary , Stephanie M. Aguilera , Arie Nakhmani , Joseph M. Reinhardt , Surya P. Bhatt , Sandeep Bodduluri

Background: In MR-guided proton therapy planning, aligning MR and CT images is key for MR-based CT synthesis, especially in mobile regions like the head-and-neck. Misalignments here can lead to less accurate synthetic CT (sCT) images,…

Lung segmentation in chest X-ray images is a critical task in medical image analysis, enabling accurate diagnosis and treatment of various lung diseases. In this paper, we propose a novel approach for lung segmentation by integrating…

Image and Video Processing · Electrical Eng. & Systems 2024-05-22 Mohammad Ali Labbaf Khaniki , Nazanin Mahjourian , Mohammad Manthouri

MR imaging will play a very important role in radiotherapy treatment planning for segmentation of tumor volumes and organs. However, the use of MR-based radiotherapy is limited because of the high cost and the increased use of metal…

Computer Vision and Pattern Recognition · Computer Science 2018-09-05 Cheng-Bin Jin , Hakil Kim , Wonmo Jung , Seongsu Joo , Ensik Park , Ahn Young Saem , In Ho Han , Jae Il Lee , Xuenan Cui

Joint image registration and segmentation has long been an active area of research in medical imaging. Here, we reformulate this problem in a deep learning setting using adversarial learning. We consider the case in which fixed and moving…

Image and Video Processing · Electrical Eng. & Systems 2019-07-01 Mohamed S. Elmahdy , Jelmer M. Wolterink , Hessam Sokooti , Ivana Išgum , Marius Staring

Cardiac magnetic resonance (CMR) sequences visualise the cardiac function voxel-wise over time. Simultaneously, deep learning-based deformable image registration is able to estimate discrete vector fields which warp one time step of a CMR…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Sven Koehler , Tarique Hussain , Hamza Hussain , Daniel Young , Samir Sarikouch , Thomas Pickhardt , Gerald Greil , Sandy Engelhardt

The 3D volumetric shape of the heart's left ventricle (LV) myocardium (MYO) wall provides important information for diagnosis of cardiac disease and invasive procedure navigation. Many cardiac image segmentation methods have relied on…

Computer Vision and Pattern Recognition · Computer Science 2021-02-23 Meng Ye , Qiaoying Huang , Dong Yang , Pengxiang Wu , Jingru Yi , Leon Axel , Dimitris Metaxas

In medical-data driven learning, 3D convolutional neural networks (CNNs) have started to show superior performance to 2D CNNs in numerous deep learning tasks, proving the added value of 3D spatial information in feature representation.…

Image and Video Processing · Electrical Eng. & Systems 2024-01-24 Xin Wang , Ruisheng Su , Weiyi Xie , Wenjin Wang , Yi Xu , Ritse Mann , Jungong Han , Tao Tan

Image-based, patient-specific modelling of hemodynamics can improve diagnostic capabilities and provide complementary insights to better understand the hemodynamic treatment outcomes. However, computational fluid dynamics simulations remain…

Numerical Analysis · Mathematics 2025-02-18 Francesco Romor , Felipe Galarce , Jan Brüning , Leonid Goubergrits , Alfonso Caiazzo

Reliably and physically accurately transferring information between images through deformable image registration with large anatomical differences is an open challenge in medical image analysis. Most existing methods have two key…

Computer Vision and Pattern Recognition · Computer Science 2023-03-13 Georgios Andreadis , Peter A. N. Bosman , Tanja Alderliesten

Cardiopulmonary exercise testing (CPET) provides a comprehensive assessment of functional capacity by measuring key physiological variables including oxygen consumption ($VO_2$), carbon dioxide production ($VCO_2$), and pulmonary…

Machine Learning · Computer Science 2025-03-19 Muhammet Alkan , Gruschen Veldtman , Fani Deligianni

Detection of pulmonary nodules by CT is used for screening lung cancer in early stages.omputer aided diagnosis (CAD) based on deep-learning method can identify the suspected areas of pulmonary nodules in CT images, thus improving the…

Image and Video Processing · Electrical Eng. & Systems 2023-03-24 Yang Liu , Yue-Jie Hou , Chen-Xin Qin , Xin-Hui Li , Si-Jing Li , Bin Wang , Chi-Chun Zhou

The purpose of this study is to develop a deep learning based method that can automatically generate segmentations on cone-beam CT (CBCT) for head and neck online adaptive radiation therapy (ART), where expert-drawn contours in planning CT…

Medical Physics · Physics 2021-02-02 Xiao Liang , Howard Morgan , Dan Nguyen , Steve Jiang

The perfect alignment of 3D echocardiographic images captured from various angles has improved image quality and broadened the field of view. This study proposes an accelerated sequential Monte Carlo (SMC) algorithm for 3D-3D rigid…

Image and Video Processing · Electrical Eng. & Systems 2025-04-29 Thanuja Uruththirakodeeswaran , Harald Becher , Michelle Noga , Lawrence H. Le , Pierre Boulanger , Jonathan Windram , Kumaradevan Punithakumar

Background: Existing clinical prediction models often represent patient data using features that ignore the semantic relationships between clinical concepts. This study integrates domain-specific semantic information by mapping the SNOMED…

Machine Learning · Computer Science 2025-08-21 Luis H. John , Jan A. Kors , Jenna M. Reps , Peter R. Rijnbeek , Egill A. Fridgeirsson

In cardiac magnetic resonance (CMR) imaging, a 3D high-resolution segmentation of the heart is essential for detailed description of its anatomical structures. However, due to the limit of acquisition duration and respiratory/cardiac…

Image and Video Processing · Electrical Eng. & Systems 2021-07-09 Shuo Wang , Chen Qin , Nicolo Savioli , Chen Chen , Declan O'Regan , Stuart Cook , Yike Guo , Daniel Rueckert , Wenjia Bai

Registration of longitudinal optical coherence tomography (OCT) images assists disease monitoring and is essential in image fusion applications. Mouse retinal OCT images are often collected for longitudinal study of eye disease models such…

Computer Vision and Pattern Recognition · Computer Science 2024-02-13 Xin Tian , Nantheera Anantrasirichai , Lindsay Nicholson , Alin Achim

Volumetric medical image segmentation is a fundamental problem in medical image analysis where the objective is to accurately classify a given 3D volumetric medical image with voxel-level precision. In this work, we propose a novel…

Image and Video Processing · Electrical Eng. & Systems 2024-10-22 Daniya Najiha Abdul Kareem , Mustansar Fiaz , Noa Novershtern , Jacob Hanna , Hisham Cholakkal

Estimating displacement vector field via a cost volume computed in the feature space has shown great success in image registration, but it suffers excessive computation burdens. Moreover, existing feature descriptors only extract local…

Computer Vision and Pattern Recognition · Computer Science 2025-06-30 Zi Li , Lin Tian , Tony C. W. Mok , Xiaoyu Bai , Puyang Wang , Jia Ge , Jingren Zhou , Le Lu , Xianghua Ye , Ke Yan , Dakai Jin

Deformable medical image registration is an essential task in computer-assisted interventions. This problem is particularly relevant to oncological treatments, where precise image alignment is necessary for tracking tumor growth, assessing…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Stefano Fogarollo , Gregor Laimer , Reto Bale , Matthias Harders