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Introduction: Quantification of dynamic contrast-enhanced (DCE)-MRI has the potential to provide valuable clinical information, but robust pharmacokinetic modeling remains a challenge for clinical adoption. Methods: A 7-layer neural network…

Medical Physics · Physics 2024-05-22 Ouri Cohen , Soudabeh Kargar , Sungmin Woo , Alberto Vargas , Ricardo Otazo

Deep learning-based segmentation methods are widely utilized for detecting lesions in ultrasound images. Throughout the imaging procedure, the attenuation and scattering of ultrasound waves cause contour blurring and the formation of…

Image and Video Processing · Electrical Eng. & Systems 2024-11-22 Ruiguo Yu , Yiyang Zhang , Yuan Tian , Zhiqiang Liu , Xuewei Li , Jie Gao

We have developed an image-based convolutional neural network (CNN) that is applicable for quantitative time-resolved measurements of the fragmentation behavior of opaque brittle materials using ultra-high speed optical imaging. This model…

Materials Science · Physics 2024-07-19 Erwin Cazares , Brian E. Schuster

We propose a topology-constrained quantized nnUNet framework for efficient and anatomically accurate 3D tooth segmentation, addressing the challenges of spatial distortion introduced by quantization in deep learning models. The proposed…

Computer Vision and Pattern Recognition · Computer Science 2026-05-07 Paarth Prasad , Ruchika Malhotra

Precise characterization of the kidney and kidney tumor characteristics is of outmost importance in the context of kidney cancer treatment, especially for nephron sparing surgery which requires a precise localization of the tissues to be…

Image and Video Processing · Electrical Eng. & Systems 2020-11-03 Gianmarco Santini , Noémie Moreau , Mathieu Rubeaux

Objective: To demonstrate the effectiveness of using a deep learning-based approach for a fully automated slice-based measurement of muscle mass for assessing sarcopenia on CT scans of the abdomen without any case exclusion criteria.…

Image and Video Processing · Electrical Eng. & Systems 2020-06-12 Fahdi Kanavati , Shah Islam , Zohaib Arain , Eric O. Aboagye , Andrea Rockall

Many renal cancers are incidentally found on non-contrast CT (NCCT) images. On contrast-enhanced CT (CECT) images, most kidney tumors, especially renal cancers, have different intensity values compared to normal tissues. However, on NCCT…

Image and Video Processing · Electrical Eng. & Systems 2023-12-11 Taro Hatsutani , Akimichi Ichinose , Keigo Nakamura , Yoshiro Kitamura

Accurate segmentation of kidneys and kidney tumors is an essential step for radiomic analysis as well as developing advanced surgical planning techniques. In clinical analysis, the segmentation is currently performed by clinicians from the…

Image and Video Processing · Electrical Eng. & Systems 2020-06-05 Wenshuai Zhao , Dihong Jiang , Jorge Peña Queralta , Tomi Westerlund

Segmentation of the left ventricle (LV) from cardiac magnetic resonance imaging (MRI) datasets is an essential step for calculation of clinical indices such as ventricular volume and ejection fraction. In this work, we employ deep learning…

Computer Vision and Pattern Recognition · Computer Science 2015-12-29 M. R. Avendi , A. Kheradvar , H. Jafarkhani

The study objective was to investigate the performance of a dedicated convolutional neural network (CNN) optimized for wrist cartilage segmentation from 2D MR images. CNN utilized a planar architecture and patch-based (PB) training approach…

Segmentation of the Left ventricle (LV) is a crucial step for quantitative measurements such as area, volume, and ejection fraction. However, the automatic LV segmentation in 2D echocardiographic images is a challenging task due to…

Image and Video Processing · Electrical Eng. & Systems 2019-12-24 Shakiba Moradi , Mostafa Ghelich-Oghli , Azin Alizadehasl , Isaac Shiri , Niki Oveisi , Mehrdad Oveisi , Majid Maleki , Jan Dhooge

Purpose: Segmentation of the breast region in dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is essential for the automatic measurement of breast density and the quantitative analysis of imaging findings. This study aims to…

Image and Video Processing · Electrical Eng. & Systems 2024-10-04 Sam Narimani , Solveig Roth Hoff , Kathinka Dæhli Kurz , Kjell-Inge Gjesdal , Jurgen Geisler , Endre Grovik

Automated medical image segmentation is an essential task to aid/speed up diagnosis and treatment procedures in clinical practices. Deep convolutional neural networks have exhibited promising performance in accurate and automatic seminal…

Medical Physics · Physics 2022-03-08 Reza Karimzadeh , Emad Fatemizadeh , Hossein Arabi

Background:Convolutional Neural Networks(CNN) and Vision Transformers(ViT) are the main techniques used in Medical image segmentation. However, CNN is limited to local contextual information, and ViT's quadratic complexity results in…

Computer Vision and Pattern Recognition · Computer Science 2025-04-07 Xuanyu Liu , Huiyun Yao , Jinggui Gao , Zhongyi Guo , Xue Zhang , Yulin Dong

Osteoporosis induced fractures occur worldwide about every 3 seconds. Vertebral compression fractures are early signs of the disease and considered risk predictors for secondary osteoporotic fractures. We present a detection method to…

Image and Video Processing · Electrical Eng. & Systems 2019-11-06 Joeri Nicolaes , Steven Raeymaeckers , David Robben , Guido Wilms , Dirk Vandermeulen , Cesar Libanati , Marc Debois

Automatic segmentation of hepatic lesions in computed tomography (CT) images is a challenging task to perform due to heterogeneous, diffusive shape of tumors and complex background. To address the problem more and more researchers rely on…

Image and Video Processing · Electrical Eng. & Systems 2019-09-18 Dina B. Efremova , Dmitry A. Konovalov , Thanongchai Siriapisith , Worapan Kusakunniran , Peter Haddawy

Recently, state-of-the-art results have been achieved in semantic segmentation using fully convolutional networks (FCNs). Most of these networks employ encoder-decoder style architecture similar to U-Net and are trained with images and the…

Computer Vision and Pattern Recognition · Computer Science 2019-01-28 Balamurali Murugesan , Kaushik Sarveswaran , Sharath M Shankaranarayana , Keerthi Ram , Mohanasankar Sivaprakasam

Medical images used in clinical practice are heterogeneous and not the same quality as scans studied in academic research. Preprocessing breaks down in extreme cases when anatomy, artifacts, or imaging parameters are unusual or protocols…

Image and Video Processing · Electrical Eng. & Systems 2022-08-31 Mostafa Mehdipour Ghazi , Mads Nielsen

Objective: Herein, a neural network-based liver segmentation algorithm is proposed, and its performance was evaluated using abdominal computed tomography (CT) images. Methods: A fully convolutional network was developed to overcome the…

Computer Vision and Pattern Recognition · Computer Science 2021-01-26 Minyoung Chung , Jingyu Lee , Minkyung Lee , Jeongjin Lee , Yeong-Gil Shin

Purpose: To develop and evaluate a real-time method for automatic planning and measurement of fetal femur length - an important indicator of antenatal growth - during MRI. While routinely assessed by ultrasound, MRI-based femur length…

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