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MRI-guided radiation treatment planning is widely applied because of its superior soft-tissue contrast and no ionization radiation compared to CT-based planning. In this regard, synthetic CT (sCT) images should be generated from the…

Medical Physics · Physics 2021-05-14 Abbas Bahrami , Alireza Karimian , Hossein Arabi

In medical imaging, access to data is commonly limited due to patient privacy restrictions and the issue that it can be difficult to acquire enough data in the case of rare diseases.[1] The purpose of this investigation was to develop a…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 John R. McNulty , Lee Kho , Alexandria L. Case , Charlie Fornaca , Drew Johnston , David Slater , Joshua M. Abzug , Sybil A. Russell

Cone-beam computed tomography (CBCT) offers advantages over conventional fan-beam CT in that it requires a shorter time and less exposure to obtain images. CBCT has found a wide variety of applications in patient positioning for…

Computer Vision and Pattern Recognition · Computer Science 2020-07-01 S. Kida , S. Kaji , K. Nawa , T. Imae , T. Nakamoto , S. Ozaki , T. Ohta , Y. Nozawa , K. Nakagawa

In this research, we introduce an innovative method for synthesizing medical images using generative adversarial networks (GANs). Our proposed GANs method demonstrates the capability to produce realistic synthetic images even when trained…

Image and Video Processing · Electrical Eng. & Systems 2024-06-28 Yinqiu Feng , Bo Zhang , Lingxi Xiao , Yutian Yang , Tana Gegen , Zexi Chen

Background: Cone-beam computed tomography (CBCT) scans, performed fractionally (e.g., daily or weekly), are widely utilized for patient alignment in the image-guided radiotherapy (IGRT) process, thereby making it a potential imaging…

Data augmentation can effectively resolve a scarcity of images when training machine-learning algorithms. It can make them more robust to unseen images. We present a lesion conditional Generative Adversarial Network LcGAN to generate…

Image and Video Processing · Electrical Eng. & Systems 2020-08-10 Manohar Karki , Junghwan Cho , Seokhwan Ko

In this work we present a novel system for generation of virtual PET images using CT scans. We combine a fully convolutional network (FCN) with a conditional generative adversarial network (GAN) to generate simulated PET data from given…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Avi Ben-Cohen , Eyal Klang , Stephen P. Raskin , Shelly Soffer , Simona Ben-Haim , Eli Konen , Michal Marianne Amitai , Hayit Greenspan

A radiograph visualizes the internal anatomy of a patient through the use of X-ray, which projects 3D information onto a 2D plane. Hence, radiograph analysis naturally requires physicians to relate the prior about 3D human anatomy to 2D…

Image and Video Processing · Electrical Eng. & Systems 2022-03-25 Cheng Peng , Haofu Liao , Gina Wong , Jiebo Luo , Shaohua Kevin Zhou , Rama Chellappa

Medical image synthesis has gained a great focus recently, especially after the introduction of Generative Adversarial Networks (GANs). GANs have been used widely to provide anatomically-plausible and diverse samples for augmentation and…

Image and Video Processing · Electrical Eng. & Systems 2020-02-07 Basel Alyafi , Oliver Diaz , Joan C Vilanova , Javier del Riego , Robert Marti

MRI and CT are most widely used medical imaging modalities. It is often necessary to acquire multi-modality images for diagnosis and treatment such as radiotherapy planning. However, multi-modality imaging is not only costly but also…

Image and Video Processing · Electrical Eng. & Systems 2022-10-03 Qing Lyu , Ge Wang

The rapid advancement of Artificial Intelligence (AI) in biomedical imaging and radiotherapy is hindered by the limited availability of large imaging data repositories. With recent research and improvements in denoising diffusion…

Image and Video Processing · Electrical Eng. & Systems 2024-03-27 Rowan Bradbury , Katherine A. Vallis , Bartlomiej W. Papiez

Recently, the cycle-consistent generative adversarial networks (CycleGAN) has been widely used for synthesis of multi-domain medical images. The domain-specific nonlinear deformations captured by CycleGAN make the synthesized images…

Computer Vision and Pattern Recognition · Computer Science 2018-08-14 Chengjia Wang , Gillian Macnaught , Giorgos Papanastasiou , Tom MacGillivray , David Newby

Data diversity is critical to success when training deep learning models. Medical imaging data sets are often imbalanced as pathologic findings are generally rare, which introduces significant challenges when training deep learning models.…

Computer Vision and Pattern Recognition · Computer Science 2018-09-17 Hoo-Chang Shin , Neil A Tenenholtz , Jameson K Rogers , Christopher G Schwarz , Matthew L Senjem , Jeffrey L Gunter , Katherine Andriole , Mark Michalski

The generation of synthetic medical records using Generative Adversarial Networks (GANs) is becoming crucial for addressing privacy concerns and facilitating data sharing in the medical domain. In this paper, we introduce a novel method to…

Image and Video Processing · Electrical Eng. & Systems 2023-09-20 Tomohiro Kikuchi , Shouhei Hanaoka , Takahiro Nakao , Tomomi Takenaga , Yukihiro Nomura , Harushi Mori , Takeharu Yoshikawa

Deep learning offers potential for various healthcare applications, yet requires extensive datasets of curated medical images where data privacy, cost, and distribution mismatch across various acquisition centers could become major…

Image and Video Processing · Electrical Eng. & Systems 2024-02-02 Kasra Naftchi-Ardebili , Karanpartap Singh , Reza Pourabolghasem , Pejman Ghanouni , Gerald R. Popelka , Kim Butts Pauly

Computed tomography (CT) is widely used in screening, diagnosis, and image-guided therapy for both clinical and research purposes. Since CT involves ionizing radiation, an overarching thrust of related technical research is development of…

Image and Video Processing · Electrical Eng. & Systems 2019-06-25 Chenyu You , Guang Li , Yi Zhang , Xiaoliu Zhang , Hongming Shan , Shenghong Ju , Zhen Zhao , Zhuiyang Zhang , Wenxiang Cong , Michael W. Vannier , Punam K. Saha , Ge Wang

Compared to traditional methods, Deep Learning (DL) becomes a key technology for computer vision tasks. Synthetic data generation is an interesting use case for DL, especially in the field of medical imaging such as Magnetic Resonance…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Md Sumon Ali , Muzammil Behzad

Analyzing medical data to find abnormalities is a time-consuming and costly task, particularly for rare abnormalities, requiring tremendous efforts from medical experts. Artificial intelligence has become a popular tool for the automatic…

Medical imaging analysis faces challenges such as data scarcity, high annotation costs, and privacy concerns. This paper introduces the Medical AI for Synthetic Imaging (MAISI), an innovative approach using the diffusion model to generate…

Image and Video Processing · Electrical Eng. & Systems 2025-12-16 Pengfei Guo , Can Zhao , Dong Yang , Ziyue Xu , Vishwesh Nath , Yucheng Tang , Benjamin Simon , Mason Belue , Stephanie Harmon , Baris Turkbey , Daguang Xu

The ability to synthesise Computed Tomography images - commonly known as pseudo CT, or pCT - from MRI input data is commonly assessed using an intensity-wise similarity, such as an L2-norm between the ground truth CT and the pCT. However,…

Image and Video Processing · Electrical Eng. & Systems 2020-04-15 Kerstin Kläser , Thomas Varsavsky , Pawel Markiewicz , Tom Vercauteren , David Atkinson , Kris Thielemans , Brian Hutton , M Jorge Cardoso , Sebastien Ourselin