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Accurate reorientation and segmentation of the left ventricular (LV) is essential for the quantitative analysis of myocardial perfusion imaging (MPI), in which one critical step is to reorient the reconstructed transaxial nuclear cardiac…

Image and Video Processing · Electrical Eng. & Systems 2023-10-17 Yangfan Ni , Duo Zhang , Gege Ma , Lijun Lu , Zhongke Huang , Wentao Zhu

The morphological structure of left ventricle segmented from cardiac magnetic resonance images can be used to calculate key clinical parameters, and it is of great significance to the accurate and efficient diagnosis of cardiovascular…

Computer Vision and Pattern Recognition · Computer Science 2018-09-28 Han Kang , Defeng Chen

Medical image segmentation is of great significance in analysis of illness. The use of deep neural networks in medical image segmentation can help doctors extract regions of interest from complex medical images, thereby improving diagnostic…

Image and Video Processing · Electrical Eng. & Systems 2026-04-01 Zhuoyi Fang , Kexuan Shi , Jiajia Liu , Qiang Han

Echocardiography has become an indispensable clinical imaging modality for general heart health assessment. From calculating biomarkers such as ejection fraction to the probability of a patient's heart failure, accurate segmentation of the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-27 Fadillah Maani , Asim Ukaye , Nada Saadi , Numan Saeed , Mohammad Yaqub

Left ventricular ejection fraction (LVEF) is the most important clinical parameter of cardiovascular function. The accuracy in estimating this parameter is highly dependent upon the precise segmentation of the left ventricle (LV) structure…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Narjes Benameur , Ramzi Mahmoudi , Mohamed Deriche , Amira fayouka , Imene Masmoudi , Nessrine Zoghlami

In the United States, heart disease is the leading cause of death for both men and women, accounting for 610,000 deaths each year [1]. Physicians use Magnetic Resonance Imaging (MRI) scans to take images of the heart in order to…

Computer Vision and Pattern Recognition · Computer Science 2018-11-22 Ehab Abdelmaguid , Jolene Huang , Sanjay Kenchareddy , Disha Singla , Laura Wilke , Mai H. Nguyen , Ilkay Altintas

Cardiac magnetic resonance imaging (MRI) is an essential tool for MRI-guided surgery and real-time intervention. The MRI videos are expected to be segmented on-the-fly in real practice. However, existing segmentation methods would suffer…

Image and Video Processing · Electrical Eng. & Systems 2019-09-17 Tianchen Wang , Jinjun Xiong , Xiaowei Xu , Meng Jiang , Yiyu Shi , Haiyun Yuan , Meiping Huang , Jian Zhuang

Purpose: Echocardiography is commonly used as a non-invasive imaging tool in clinical practice for the assessment of cardiac function. However, delineation of the left ventricle is challenging due to the inherent properties of ultrasound…

Image and Video Processing · Electrical Eng. & Systems 2021-09-07 Deepa Krishnaswamy , Abhilash R. Hareendranathan , Tan Suwatanaviroj , Pierre Boulanger , Harald Becher , Michelle Noga , Kumaradevan Punithakumar

Anatomical and biophysical modeling of left atrium (LA) and proximal pulmonary veins (PPVs) is important for clinical management of several cardiac diseases. Magnetic resonance imaging (MRI) allows qualitative assessment of LA and PPVs…

Computer Vision and Pattern Recognition · Computer Science 2017-05-23 Aliasghar Mortazi , Rashed Karim , Kawal Rhode , Jeremy Burt , Ulas Bagci

Medical imaging refers to the technologies and methods utilized to view the human body and its inside, in order to diagnose, monitor, or even treat medical disorders. This paper aims to explore the application of deep learning techniques in…

Image and Video Processing · Electrical Eng. & Systems 2024-11-08 Ketan Suhaas Saichandran

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

The U-Net was presented in 2015. With its straight-forward and successful architecture it quickly evolved to a commonly used benchmark in medical image segmentation. The adaptation of the U-Net to novel problems, however, comprises several…

In this research, we propose a tiny image segmentation model, L^3U-net, that works on low-resource edge devices in real-time. We introduce a data folding technique that reduces inference latency by leveraging the parallel convolutional…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Osman Erman Okman , Mehmet Gorkem Ulkar , Gulnur Selda Uyanik

Accurate segmentation of the heart is essential for personalized blood flow simulations and surgical intervention planning. Segmentations need to be accurate in every spatial dimension, which is not ensured by segmenting data slice by…

Image and Video Processing · Electrical Eng. & Systems 2024-01-25 Lee Jollans , Mariana Bustamante , Lilian Henriksson , Anders Persson , Tino Ebbers

Image segmentation is a fundamental task in image analysis and clinical practice. The current state-of-the-art techniques are based on U-shape type encoder-decoder networks with skip connections, called U-Net. Despite the powerful…

Computer Vision and Pattern Recognition · Computer Science 2023-02-02 Chun-Wun Cheng , Christina Runkel , Lihao Liu , Raymond H Chan , Carola-Bibiane Schönlieb , Angelica I Aviles-Rivero

In this study, the performance of existing U-shaped neural network architectures was enhanced for medical image segmentation by adding Transformer. Although Transformer architectures are powerful at extracting global information, its…

Image and Video Processing · Electrical Eng. & Systems 2024-04-12 Songkai Sun , Qingshan She , Yuliang Ma , Rihui Li , Yingchun Zhang

Breast tumor segmentation is one of the key steps that helps us characterize and localize tumor regions. However, variable tumor morphology, blurred boundary, and similar intensity distributions bring challenges for accurate segmentation of…

Image and Video Processing · Electrical Eng. & Systems 2024-01-23 Gongping Chen , Lei Li , JianXun Zhang , Yu Dai

In this paper, we propose a novel heart segmentation pipeline Combining Faster R-CNN and U-net Network (CFUN). Due to Faster R-CNN's precise localization ability and U-net's powerful segmentation ability, CFUN needs only one-step detection…

Computer Vision and Pattern Recognition · Computer Science 2018-12-13 Zhanwei Xu , Ziyi Wu , Jianjiang Feng

Accurate hepatic vessel segmentation on ultrasound (US) images can be an important tool in the planning and execution of surgery, however proves to be a challenging task due to noise and speckle. Our method comprises a reduced filter 3D…

Segmentation and measurement of cardiac chambers is critical in cardiac ultrasound but is laborious and poorly reproducible. Neural networks can assist, but supervised approaches require the same laborious manual annotations. We built a…

Image and Video Processing · Electrical Eng. & Systems 2026-02-24 Danielle L. Ferreira , Connor Lau , Zaynaf Salaymang , Rima Arnaout