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Small liver lesions common to colorectal liver metastases (CRLMs) are challenging for convolutional neural network (CNN) segmentation models, especially when we have a wide range of slice thicknesses in the computed tomography (CT) scans.…

Image and Video Processing · Electrical Eng. & Systems 2023-08-31 Mohammad Hamghalam , Richard K. G. Do , Amber L. Simpson

Understanding the progression of cancer is crucial for defining treatments for patients. The objective of this study is to automate the detection of metastatic liver disease from free-style computed tomography (CT) radiology reports. Our…

Machine Learning · Computer Science 2023-10-31 Maede Ashofteh Barabadi , Xiaodan Zhu , Wai Yip Chan , Amber L. Simpson , Richard K. G. Do

Purpose: Automated liver tumor segmentation from Computed Tomography (CT) images is a necessary prerequisite in the interventions of hepatic abnormalities and surgery planning. However, accurate liver tumor segmentation remains challenging…

Computer Vision and Pattern Recognition · Computer Science 2023-01-11 Yao Zhang , Jiawei Yang , Yang Liu , Jiang Tian , Siyun Wang , Cheng Zhong , Zhongchao Shi , Yang Zhang , Zhiqiang He

Liver steatosis is known as the abnormal accumulation of lipids within cells. An accurate quantification of steatosis area within the liver histopathological microscopy images plays an important role in liver disease diagnosis and…

Image and Video Processing · Electrical Eng. & Systems 2019-11-19 Xiaoyuan Guo , Fusheng Wang , George Teodorou , Alton B. Farris , Jun Kong

Liver cancer is one of the most prevalent and lethal forms of cancer, making early detection crucial for effective treatment. This paper introduces a novel approach for automated liver tumor segmentation in computed tomography (CT) images…

Machine Learning · Computer Science 2025-08-13 Nastaran Ghorbani , Bitasadat Jamshidi , Mohsen Rostamy-Malkhalifeh

Whole abdominal organ segmentation is important in diagnosing abdomen lesions, radiotherapy, and follow-up. However, oncologists' delineating all abdominal organs from 3D volumes is time-consuming and very expensive. Deep learning-based…

Image and Video Processing · Electrical Eng. & Systems 2023-02-14 Xiangde Luo , Wenjun Liao , Jianghong Xiao , Jieneng Chen , Tao Song , Xiaofan Zhang , Kang Li , Dimitris N. Metaxas , Guotai Wang , Shaoting Zhang

Coronary artery disease (CAD) is a leading cause of cardiovascular-related mortality, and accurate stenosis detection is crucial for effective clinical decision-making. Coronary angiography remains the gold standard for diagnosing CAD, but…

Image and Video Processing · Electrical Eng. & Systems 2025-03-25 Baixiang Huang , Yu Luo , Guangyu Wei , Songyan He , Yushuang Shao , Xueying Zeng

Objective: Automated segmentation tools are useful for calculating kidney volumes rapidly and accurately. Furthermore, these tools have the power to facilitate large-scale image-based artificial intelligence projects by generating input…

Image and Video Processing · Electrical Eng. & Systems 2024-05-15 Lucas Aronson , Ruben Ngnitewe Massaa , Syed Jamal Safdar Gardezi , Andrew L. Wentland

Over the past few decades, researchers have developed several approaches such as the Reference Phantom Method (RPM) to estimate ultrasound attenuation coefficient (AC) and backscatter coefficient (BSC). AC and BSC can help to discriminate…

Medical Physics · Physics 2017-12-12 Kajoli Banerjee Krishnan , Nithin Nagaraj , Nitin Singhal , Shalini Thapar , Komal Yadav

Automated lumbar spine segmentation is very crucial for modern diagnosis systems. In this study, we introduce a novel machine-agnostic approach for segmenting lumbar vertebrae and intervertebral discs from MRI images, employing a cascaded…

Image and Video Processing · Electrical Eng. & Systems 2024-11-26 Promit Basak , Rusab Sarmun , Saidul Kabir , Israa Al-Hashimi , Enamul Hoque Bhuiyan , Anwarul Hasan , Muhammad Salman Khan , Muhammad E. H. Chowdhury

Automatic segmentation of organs-at-risk (OARs) in CT scans using convolutional neural networks (CNNs) is being introduced into the radiotherapy workflow. However, these segmentations still require manual editing and approval by clinicians…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Edward G. A. Henderson , Andrew F. Green , Marcel van Herk , Eliana M. Vasquez Osorio

In this study, we propose a new activation function, called Adaptive Smooth Activation Unit (ASAU), tailored for optimized gradient propagation, thereby enhancing the proficiency of convolutional networks in medical image analysis. We apply…

Neural and Evolutionary Computing · Computer Science 2023-12-20 Koushik Biswas , Debesh Jha , Nikhil Kumar Tomar , Gorkem Durak , Alpay Medetalibeyoglu , Matthew Antalek , Yury Velichko , Daniela Ladner , Amir Bohrani , Ulas Bagci

While colorectal liver metastasis (CRLM) is potentially curable via hepatectomy, patient outcomes remain highly heterogeneous. Postoperative survival prediction is necessary to avoid non-beneficial surgeries and guide personalized therapy.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-12 Muhammad Alberb , Jianan Chen , Hossam El-rewaidy , Paul Karanicolas , Arun Seth , Yutaka Amemiya , Anne Martel , Helen Cheung

As lung cancer evolves, the presence of enlarged and potentially malignant lymph nodes must be assessed to properly estimate disease progression and select the best treatment strategy. Following the clinical guidelines, estimation of…

Image and Video Processing · Electrical Eng. & Systems 2022-05-03 David Bouget , André Pedersen , Johanna Vanel , Haakon O. Leira , Thomas Langø

Accurate segmentation of abdominal adipose tissue, including subcutaneous (SAT) and visceral adipose tissue (VAT), along with liver segmentation, is essential for understanding body composition and associated health risks such as type 2…

Image and Video Processing · Electrical Eng. & Systems 2025-04-17 Mansoor Hayat , Supavadee Aramvith , Subrata Bhattacharjee , Nouman Ahmad

The evaluation of obstructions (stenosis) in coronary arteries is currently done by a physician's visual assessment of coronary angiography video sequences. It is laborious, and can be susceptible to interobserver variation. Prior studies…

Image and Video Processing · Electrical Eng. & Systems 2021-02-01 Chengyang Zhou , Thao Vy Dinh , Heyi Kong , Jonathan Yap , Khung Keong Yeo , Hwee Kuan Lee , Kaicheng Liang

We demonstrate that AI models can accurately segment liver tumors without the need for manual annotation by using synthetic tumors in CT scans. Our synthetic tumors have two intriguing advantages: (I) realistic in shape and texture, which…

Image and Video Processing · Electrical Eng. & Systems 2023-03-28 Qixin Hu , Yixiong Chen , Junfei Xiao , Shuwen Sun , Jieneng Chen , Alan Yuille , Zongwei Zhou

Cardiothoratic ratio (CTR) estimated from chest radiographs is a marker indicative of cardiomegaly, the presence of which is in the criteria for heart failure diagnosis. Existing methods for automatic assessment of CTR are driven by Deep…

Image and Video Processing · Electrical Eng. & Systems 2019-08-09 Roman Solovyev , Iaroslav Melekhov , Timo Lesonen , Elias Vaattovaara , Osmo Tervonen , Aleksei Tiulpin

In this work a machine learning-based Reduced Order Model (ROM) is developed to investigate in a rapid and reliable way the hemodynamic patterns in a patient-specific configuration of Coronary Artery Bypass Graft (CABG). The computational…

Numerical Analysis · Mathematics 2022-03-31 Pierfrancesco Siena , Michele Girfoglio , Gianluigi Rozza

Stereotactic Body Radiation Therapy (SBRT) can be a precise, minimally invasive treatment method for liver cancer and liver metastases. However, the effectiveness of SBRT relies on the accurate delivery of the dose to the tumor while…

Medical Physics · Physics 2024-11-26 Sugandima Weragoda , Ping Xia , Kevin Stephans , Neil Woody , Michael Martens , Robert Brown , Bingqi Guo
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