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Accurate segmentation of organ at risk (OAR) play a critical role in the treatment planning of image guided radiation treatment of head and neck cancer. This segmentation task is challenging for both human and automatic algorithms because…

Computer Vision and Pattern Recognition · Computer Science 2019-10-14 Yueyue Wang , Liang Zhao , Zhijian Song , Manning Wang

Automatic segmentation of organs-at-risk (OAR) in computed tomography (CT) is an essential part of planning effective treatment strategies to combat lung and esophageal cancer. Accurate segmentation of organs surrounding tumours helps…

Computer Vision and Pattern Recognition · Computer Science 2019-05-21 Sulaiman Vesal , Nishant Ravikumar , Andreas Maier

Organ at risk (OAR) segmentation in computed tomography (CT) imagery is a difficult task for automated segmentation methods and can be crucial for downstream radiation treatment planning. U-net has become a de-facto standard for medical…

Image and Video Processing · Electrical Eng. & Systems 2024-02-27 Abdullah Nazib , Riad Hassan , Zahidul Islam , Clinton Fookes

Segmentation of regions of interest in images of patients, is a crucial step in many medical procedures. Deep neural networks have proven to be particularly adept at this task. However, a key question is what type of deep neural network to…

Image and Video Processing · Electrical Eng. & Systems 2023-03-22 Vangelis Kostoulas , Peter A. N. Bosman , Tanja Alderliesten

Over half a million individuals are diagnosed with head and neck cancer each year worldwide. Radiotherapy is an important curative treatment for this disease, but it requires manual time consuming delineation of radio-sensitive organs at…

Radiation therapy has emerged as one of the preferred techniques to treat brain cancer patients. During treatment, a very high dose of radiation is delivered to a very narrow area. Prescribed radiation therapy for brain cancer requires…

Computer Vision and Pattern Recognition · Computer Science 2017-04-06 Jose Dolz , Nicolas Reyns , Nacim Betrouni , Dris Kharroubi , Mathilde Quidet , Laurent Massoptier , Maximilien Vermandel

Automatic localization and segmentation of organs-at-risk (OAR) in CT are essential pre-processing steps in medical image analysis tasks, such as radiation therapy planning. For instance, the segmentation of OAR surrounding tumors enables…

Computer Vision and Pattern Recognition · Computer Science 2022-03-02 Fernando Navarro , Guido Sasahara , Suprosanna Shit , Ivan Ezhov , Jan C. Peeken , Stephanie E. Combs , Bjoern H. Menze

Planning of radiotherapy involves accurate segmentation of a large number of organs at risk, i.e. organs for which irradiation doses should be minimized to avoid important side effects of the therapy. We propose a deep learning method for…

Image and Video Processing · Electrical Eng. & Systems 2019-07-04 Pawel Mlynarski , Hervé Delingette , Hamza Alghamdi , Pierre-Yves Bondiau , Nicholas Ayache

This paper deals with segmentation of organs at risk (OAR) in head and neck area in CT images which is a crucial step for reliable intensity modulated radiotherapy treatment. We introduce a convolution neural network with encoder-decoder…

Computer Vision and Pattern Recognition · Computer Science 2018-12-07 Oldřich Kodym , Michal Španěl , Adam Herout

The accurate segmentation of organs-at-risk (OARs) in head and neck CT images is a critical step for radiation therapy of head and neck cancer patients. However, manual delineation for numerous OARs is time-consuming and laborious, even for…

Image and Video Processing · Electrical Eng. & Systems 2021-10-26 Shuai Wang , Theodore Yanagihara , Bhishamjit Chera , Colette Shen , Pew-Thian Yap , Jun Lian

Purpose: Segmentation of organs-at-risk (OARs) is a bottleneck in current radiation oncology pipelines and is often time consuming and labor intensive. In this paper, we propose an atlas-based semi-supervised registration algorithm to…

Computer Vision and Pattern Recognition · Computer Science 2019-11-26 Charles Huang , Masoud Badiei , Hyunseok Seo , Ming Ma , Xiaokun Liang , Dante Capaldi , Michael Gensheimer , Lei Xing

Deep learning models benefit from training with a large dataset (labeled or unlabeled). Following this motivation, we present an approach to learn a deep learning model for the automatic segmentation of Organs at Risk (OARs) in cervical…

Image and Video Processing · Electrical Eng. & Systems 2023-02-22 Monika Grewal , Dustin van Weersel , Henrike Westerveld , Peter A. N. Bosman , Tanja Alderliesten

Introduction: The present study on the development and evaluation of an automated brain tumor segmentation technique based on deep learning using the 3D U-Net model. Objectives: The objective is to leverage state-of-the-art convolutional…

Image and Video Processing · Electrical Eng. & Systems 2024-04-10 Suman Sourabh , Murugappan Valliappan , Narayana Darapaneni , Anwesh R P

Nasopharyngeal Carcinoma (NPC) is a leading form of Head-and-Neck (HAN) cancer in the Arctic, China, Southeast Asia, and the Middle East/North Africa. Accurate segmentation of Organs-at-Risk (OAR) from Computed Tomography (CT) images with…

Image and Video Processing · Electrical Eng. & Systems 2021-02-04 Wenhui Lei , Haochen Mei , Zhengwentai Sun , Shan Ye , Ran Gu , Huan Wang , Rui Huang , Shichuan Zhang , Shaoting Zhang , Guotai Wang

The segmentation of organs at risk (OAR) is a required precondition for the cancer treatment with image guided radiation therapy. The automation of the segmentation task is therefore of high clinical relevance. Deep Learning (DL) based…

Computer Vision and Pattern Recognition · Computer Science 2022-04-22 Elias Tappeiner , Martin Welk , Rainer Schubert

Segmentation is one of the most significant steps in image processing. Segmenting an image is a technique that makes it possible to separate a digital image into various areas based on the different characteristics of pixels in the image.…

Image and Video Processing · Electrical Eng. & Systems 2024-11-20 Sina Derakhshandeh , Ali Mahloojifar

Organ at Risk (OAR) segmentation from CT scans is a key component of the radiotherapy treatment workflow. In recent years, deep learning techniques have shown remarkable potential in automating this process. In this paper, we investigate…

Image and Video Processing · Electrical Eng. & Systems 2023-09-21 Leonardo Crespi , Mattia Portanti , Daniele Loiacono

Organs-at-risk (OAR) delineation in computed tomography (CT) is an important step in Radiation Therapy (RT) planning. Recently, deep learning based methods for OAR delineation have been proposed and applied in clinical practice for separate…

Image and Video Processing · Electrical Eng. & Systems 2020-01-14 Shanlin Sun , Yang Liu , Narisu Bai , Hao Tang , Xuming Chen , Qian Huang , Yong Liu , Xiaohui Xie

In radiotherapy planning, manual contouring is labor-intensive and time-consuming. Accurate and robust automated segmentation models improve the efficiency and treatment outcome. We aim to develop a novel hybrid deep learning approach,…

Image and Video Processing · Electrical Eng. & Systems 2022-01-19 Zhuangzhuang Zhang , Tianyu Zhao , Hiram Gay , Weixiong Zhang , Baozhou Sun

In this study, the main objective is to develop an algorithm capable of identifying and delineating tumor regions in breast ultrasound (BUS) and mammographic images. The technique employs two advanced deep learning architectures, namely…

Image and Video Processing · Electrical Eng. & Systems 2024-02-14 Mohsen Ahmadi , Masoumeh Farhadi Nia , Sara Asgarian , Kasra Danesh , Elyas Irankhah , Ahmad Gholizadeh Lonbar , Abbas Sharifi
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