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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

Automatic multi-organ segmentation of the dual energy computed tomography (DECT) data can be beneficial for biomedical research and clinical applications. However, it is a challenging task. Recent advances in deep learning showed the…

Computer Vision and Pattern Recognition · Computer Science 2017-10-17 Shuqing Chen , Holger Roth , Sabrina Dorn , Matthias May , Alexander Cavallaro , Michael M. Lell , Marc Kachelrieß , Hirohisa Oda , Kensaku Mori , Andreas Maier

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

Automated brain tumour segmentation has the potential of making a massive improvement in disease diagnosis, surgery, monitoring and surveillance. However, this task is extremely challenging. Here, we describe our automated segmentation…

Image and Video Processing · Electrical Eng. & Systems 2020-05-13 Indrajit Mazumdar

Semantic segmentation for medical 3D image stacks enables accurate volumetric reconstructions, computer-aided diagnostics and follow up treatment planning. In this work, we present a novel variant of the Unet model called the NUMSnet that…

Image and Video Processing · Electrical Eng. & Systems 2023-04-07 Sohini Roychowdhury

Automatic segmentation of head and neck tumors plays an important role in radiomics analysis. In this short paper, we propose an automatic segmentation method for head and neck tumors from PET and CT images based on the combination of…

Image and Video Processing · Electrical Eng. & Systems 2020-12-29 Jun Ma , Xiaoping Yang

Background: A crucial initial processing step for quantitative PET/CT analysis is the segmentation of tumor lesions enabling accurate feature ex-traction, tumor characterization, oncologic staging, and image-based therapy response…

Image and Video Processing · Electrical Eng. & Systems 2022-10-18 Ludovic Sibille , Xinrui Zhan , Lei Xiang

There has been growing research interest in using deep learning based method to achieve fully automated segmentation of lesion in Positron emission tomography computed tomography(PET CT) scans for the prognosis of various cancers. Recent…

Image and Video Processing · Electrical Eng. & Systems 2022-09-19 Jia Zhang , Yukun Huang , Zheng Zhang , Yuhang Shi

Segmentation of the airway tree from chest computed tomography (CT) images is critical for quantitative assessment of airway diseases including bronchiectasis and chronic obstructive pulmonary disease (COPD). However, obtaining an accurate…

Computer Vision and Pattern Recognition · Computer Science 2018-08-15 A. Garcia-Uceda Juarez , H. A. W. M. Tiddens , M. de Bruijne

An automatic segmentation algorithm for delineation of the gross tumour volume and pathologic lymph nodes of head and neck cancers in PET/CT images is described. The proposed algorithm is based on a convolutional neural network using the…

Image and Video Processing · Electrical Eng. & Systems 2019-08-05 Yngve Mardal Moe , Aurora Rosvoll Groendahl , Martine Mulstad , Oliver Tomic , Ulf Indahl , Einar Dale , Eirik Malinen , Cecilia Marie Futsaether

Purpose: Proximal femur image analyses based on quantitative computed tomography (QCT) provide a method to quantify the bone density and evaluate osteoporosis and risk of fracture. We aim to develop a deep-learning-based method for…

Due to the fact that pancreas is an abdominal organ with very large variations in shape and size, automatic and accurate pancreas segmentation can be challenging for medical image analysis. In this work, we proposed a fully automated two…

Computer Vision and Pattern Recognition · Computer Science 2019-07-29 Ningning Zhao , Nuo Tong , Dan Ruan , Ke Sheng

Recent advances in 3D fully convolutional networks (FCN) have made it feasible to produce dense voxel-wise predictions of volumetric images. In this work, we show that a multi-class 3D FCN trained on manually labeled CT scans of several…

Computer Vision and Pattern Recognition · Computer Science 2018-04-13 Holger R. Roth , Hirohisa Oda , Xiangrong Zhou , Natsuki Shimizu , Ying Yang , Yuichiro Hayashi , Masahiro Oda , Michitaka Fujiwara , Kazunari Misawa , Kensaku Mori

Automated segmentation of cancerous lesions in PET/CT images is a vital initial task for quantitative analysis. However, it is often challenging to train deep learning-based segmentation methods to high degree of accuracy due to the…

Image and Video Processing · Electrical Eng. & Systems 2023-09-26 Shadab Ahamed , Arman Rahmim

Automated segmentation of cancerous lesions in PET/CT scans is a crucial first step in quantitative image analysis. However, training deep learning models for segmentation with high accuracy is particularly challenging due to the variations…

Computer Vision and Pattern Recognition · Computer Science 2024-09-17 Shadab Ahamed

Accurate segmentation of prostate and surrounding organs at risk is important for prostate cancer radiotherapy treatment planning. We present a fully automated workflow for male pelvic CT image segmentation using deep learning. The…

Automatic lymph node (LN) segmentation and detection for cancer staging are critical. In clinical practice, computed tomography (CT) and positron emission tomography (PET) imaging detect abnormal LNs. Despite its low contrast and variety in…

Image and Video Processing · Electrical Eng. & Systems 2022-12-23 Al-Akhir Nayan , Boonserm Kijsirikul , Yuji Iwahori

Deep convolutional neural network (CNN) achieves remarkable performance for medical image analysis. UNet is the primary source in the performance of 3D CNN architectures for medical imaging tasks, including brain tumor segmentation. The…

Image and Video Processing · Electrical Eng. & Systems 2020-11-30 Parvez Ahmad , Saqib Qamar , Linlin Shen , Adnan Saeed

Convolutional neural networks (CNNs) are increasingly being used to automate segmentation of organs-at-risk in radiotherapy. Since large sets of highly curated data are scarce, we investigated how much data is required to train accurate and…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Edward G. A. Henderson , Marcel van Herk , Eliana M. Vasquez Osorio

Fluorodeoxyglucose Positron Emission Tomography (FDG-PET) combined with Computed Tomography (CT) scans are critical in oncology to the identification of solid tumours and the monitoring of their progression. However, precise and consistent…

Image and Video Processing · Electrical Eng. & Systems 2024-10-28 Anissa Alloula , Daniel R McGowan , Bartłomiej W. Papież