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984 Results Found

  • Article
  • Open Access
92 Citations
8,252 Views
24 Pages

ResBCDU-Net: A Deep Learning Framework for Lung CT Image Segmentation

  • Yeganeh Jalali,
  • Mansoor Fateh,
  • Mohsen Rezvani,
  • Vahid Abolghasemi and
  • Mohammad Hossein Anisi

3 January 2021

Lung CT image segmentation is a key process in many applications such as lung cancer detection. It is considered a challenging problem due to existing similar image densities in the pulmonary structures, different types of scanners, and scanning prot...

  • Article
  • Open Access
79 Citations
10,043 Views
23 Pages

A Multi-Agent Deep Reinforcement Learning Approach for Enhancement of COVID-19 CT Image Segmentation

  • Hanane Allioui,
  • Mazin Abed Mohammed,
  • Narjes Benameur,
  • Belal Al-Khateeb,
  • Karrar Hameed Abdulkareem,
  • Begonya Garcia-Zapirain,
  • Robertas Damaševičius and
  • Rytis Maskeliūnas

18 February 2022

Currently, most mask extraction techniques are based on convolutional neural networks (CNNs). However, there are still numerous problems that mask extraction techniques need to solve. Thus, the most advanced methods to deploy artificial intelligence...

  • Article
  • Open Access
4 Citations
4,071 Views
13 Pages

All You Need Is a Few Dots to Label CT Images for Organ Segmentation

  • Mingeon Ju,
  • Moonhyun Lee,
  • Jaeyoung Lee,
  • Jaewoo Yang,
  • Seunghan Yoon and
  • Younghoon Kim

26 January 2022

Image segmentation is used to analyze medical images quantitatively for diagnosis and treatment planning. Since manual segmentation requires considerable time and effort from experts, research to automatically perform segmentation is in progress. Rec...

  • Article
  • Open Access
6 Citations
2,901 Views
12 Pages

VLSM-Net: A Fusion Architecture for CT Image Segmentation

  • Yachun Gao,
  • Jia Guo,
  • Chuanji Fu,
  • Yan Wang and
  • Shimin Cai

30 March 2023

Region of interest (ROI) segmentation is a key step in computer-aided diagnosis (CAD). With the problems of blurred tissue edges and imprecise boundaries of ROI in medical images, it is hard to extract satisfactory ROIs from medical images. In order...

  • Article
  • Open Access
47 Citations
5,899 Views
19 Pages

SD-UNet: A Novel Segmentation Framework for CT Images of Lung Infections

  • Shuangcai Yin,
  • Hongmin Deng,
  • Zelin Xu,
  • Qilin Zhu and
  • Junfeng Cheng

Due to the outbreak of lung infections caused by the coronavirus disease (COVID-19), humans have to face an unprecedented and devastating global health crisis. Since chest computed tomography (CT) images of COVID-19 patients contain abundant patholog...

  • Article
  • Open Access
4 Citations
2,812 Views
22 Pages

A Boundary-Enhanced Liver Segmentation Network for Multi-Phase CT Images with Unsupervised Domain Adaptation

  • Swathi Ananda,
  • Rahul Kumar Jain,
  • Yinhao Li,
  • Yutaro Iwamoto,
  • Xian-Hua Han,
  • Shuzo Kanasaki,
  • Hongjie Hu and
  • Yen-Wei Chen

Multi-phase computed tomography (CT) images have gained significant popularity in the diagnosis of hepatic disease. There are several challenges in the liver segmentation of multi-phase CT images. (1) Annotation: due to the distinct contrast enhancem...

  • Feature Paper
  • Article
  • Open Access
746 Views
15 Pages

An Automatic Pixel-Level Segmentation Method for Coal-Crack CT Images Based on U2-Net

  • Yimin Zhang,
  • Chengyi Wu,
  • Jinxia Yu,
  • Guoqiang Wang and
  • Yingying Li

26 October 2025

Automatically segmenting coal cracks in CT images is crucial for 3D reconstruction and the physical properties of mines. This paper proposes an automatic pixel-level deep learning method called Attention Double U2-Net to enhance the segmentation accu...

  • Article
  • Open Access
12 Citations
7,814 Views
15 Pages

13 June 2024

Image segmentation and identification are crucial to modern medical image processing techniques. This research provides a novel and effective method for identifying and segmenting liver tumors from public CT images. Our approach leverages the hybrid...

  • Article
  • Open Access
11 Citations
2,583 Views
15 Pages

Machine Learning CT-Based Automatic Nodal Segmentation and PET Semi-Quantification of Intraoperative 68Ga-PSMA-11 PET/CT Images in High-Risk Prostate Cancer: A Pilot Study

  • Guido Rovera,
  • Serena Grimaldi,
  • Marco Oderda,
  • Monica Finessi,
  • Valentina Giannini,
  • Roberto Passera,
  • Paolo Gontero and
  • Désirée Deandreis

21 September 2023

High-resolution intraoperative PET/CT specimen imaging, coupled with prostate-specific membrane antigen (PSMA) molecular targeting, holds great potential for the rapid ex vivo identification of disease localizations in high-risk prostate cancer patie...

  • Article
  • Open Access
1,521 Views
19 Pages

Research on Soil Pore Segmentation of CT Images Based on MMLFR-UNet Hybrid Network

  • Changfeng Qin,
  • Jie Zhang,
  • Yu Duan,
  • Chenyang Li,
  • Shanzhi Dong,
  • Feng Mu,
  • Chengquan Chi and
  • Ying Han

11 May 2025

Accurate segmentation of soil pore structure is crucial for studying soil water migration, nutrient cycling, and gas exchange. However, the low-contrast and high-noise CT images in complex soil environments cause the traditional segmentation methods...

  • Article
  • Open Access
31 Citations
7,845 Views
16 Pages

Lung Segmentation in CT Images: A Residual U-Net Approach on a Cross-Cohort Dataset

  • Joana Sousa,
  • Tania Pereira,
  • Francisco Silva,
  • Miguel C. Silva,
  • Ana T. Vilares,
  • António Cunha and
  • Hélder P. Oliveira

13 February 2022

Lung cancer is one of the most common causes of cancer-related mortality, and since the majority of cases are diagnosed when the tumor is in an advanced stage, the 5-year survival rate is dismally low. Nevertheless, the chances of survival can increa...

  • Article
  • Open Access
21 Citations
10,021 Views
17 Pages

26 July 2019

Calcaneal fractures often occur because of accidents during exercise or activities. In general, the detection of the calcaneal fracture is still carried out manually through CT image observation, and as a result, there is a lack of precision in the a...

  • Article
  • Open Access
24 Citations
7,124 Views
21 Pages

Automatic Liver Tumor Segmentation from CT Images Using Graph Convolutional Network

  • Maryam Khoshkhabar,
  • Saeed Meshgini,
  • Reza Afrouzian and
  • Sebelan Danishvar

1 September 2023

Segmenting the liver and liver tumors in computed tomography (CT) images is an important step toward quantifiable biomarkers for a computer-aided decision-making system and precise medical diagnosis. Radiologists and specialized physicians use CT ima...

  • Article
  • Open Access
46 Citations
4,369 Views
19 Pages

COVID-19 is a fast-growing disease all over the world, but facilities in the hospitals are restricted. Due to unavailability of an appropriate vaccine or medicine, early identification of patients suspected to have COVID-19 plays an important role in...

  • Article
  • Open Access
10 Citations
3,621 Views
14 Pages

1 January 2022

Due to the complex shape of the vertebrae and the background containing a lot of interference information, it is difficult to accurately segment the vertebrae from the computed tomography (CT) volume by manual segmentation. This paper proposes a conv...

  • Article
  • Open Access
73 Citations
7,693 Views
22 Pages

A Few-Shot U-Net Deep Learning Model for COVID-19 Infected Area Segmentation in CT Images

  • Athanasios Voulodimos,
  • Eftychios Protopapadakis,
  • Iason Katsamenis,
  • Anastasios Doulamis and
  • Nikolaos Doulamis

22 March 2021

Recent studies indicate that detecting radiographic patterns on CT chest scans can yield high sensitivity and specificity for COVID-19 identification. In this paper, we scrutinize the effectiveness of deep learning models for semantic segmentation of...

  • Article
  • Open Access
3 Citations
1,424 Views
18 Pages

9 July 2025

The deep learning-based analysis of liver CT images is expected to provide assistance for clinicians in the diagnostic decision-making process. However, the accuracy of existing methods still falls short of clinical requirements and needs to be furth...

  • Article
  • Open Access
14 Citations
4,712 Views
19 Pages

10 April 2021

Whole cardiac segmentation in chest CT images is important to identify functional abnormalities that occur in cardiovascular diseases, such as coronary artery disease (CAD) detection. However, manual efforts are time-consuming and labor intensive. Ad...

  • Article
  • Open Access
57 Citations
8,619 Views
21 Pages

Fully Automatic Liver and Tumor Segmentation from CT Image Using an AIM-Unet

  • Fırat Özcan,
  • Osman Nuri Uçan,
  • Songül Karaçam and
  • Duygu Tunçman

The segmentation of the liver is a difficult process due to the changes in shape, border, and density that occur in each section in computed tomography (CT) images. In this study, the Adding Inception Module-Unet (AIM-Unet) model, which is a hybridiz...

  • Article
  • Open Access
6 Citations
1,988 Views
24 Pages

21 February 2025

Liver cancer is a major global health challenge, significantly contributing to mortality rates. The accurate segmentation of liver and tumors from clinical CT images plays a crucial role in selecting therapeutic strategies for liver disease and treat...

  • Article
  • Open Access
46 Citations
4,786 Views
16 Pages

23 March 2022

Segmenting medical images is a necessary prerequisite for disease diagnosis and treatment planning. Among various medical image segmentation tasks, U-Net-based variants have been widely used in liver tumor segmentation tasks. In view of the highly va...

  • Article
  • Open Access
7 Citations
3,134 Views
14 Pages

CD-MAE: Contrastive Dual-Masked Autoencoder Pre-Training Model for PCB CT Image Element Segmentation

  • Baojie Song,
  • Jian Chen,
  • Shuhao Shi,
  • Jie Yang,
  • Chen Chen,
  • Kai Qiao and
  • Bin Yan

Element detection is an important step in the process of the non-destructive testing of printed circuit boards (PCB) based on computed tomography (CT). Compared with the traditional manual detection method, the image semantic segmentation method base...

  • Article
  • Open Access
1 Citations
3,448 Views
14 Pages

Identification of Vertebrae in CT Scans for Improved Clinical Outcomes Using Advanced Image Segmentation

  • Sushmitha,
  • M. Kanthi,
  • Vishnumurthy Kedlaya K,
  • Tejasvi Parupudi,
  • Shyamasunder N. Bhat and
  • Subramanya G. Nayak

16 December 2024

This study proposes a comprehensive framework for the segmentation and identification of vertebrae in CT scans using a combination of deep learning and traditional machine learning techniques. The Res U-Net architecture is employed to achieve a high...

  • Article
  • Open Access
13 Citations
4,013 Views
14 Pages

Lung Nodule CT Image Segmentation Model Based on Multiscale Dense Residual Neural Network

  • Xinying Zhang,
  • Shanshan Kong,
  • Yang Han,
  • Baoshan Xie and
  • Chunfeng Liu

10 March 2023

To solve the problem of the low segmentation accuracy of lung nodule CT images using U-Net, an improved method for segmentation of lung nodules by U-Net was proposed. Initially, the dense network connection and sawtooth expanded convolution design wa...

  • Article
  • Open Access
3 Citations
2,975 Views
15 Pages

20 August 2022

Deep learning-based techniques can obtain high precision for multimodal stroke segmentation tasks. However, the performance often requires a large number of training examples. Additionally, existing data extension approaches for the segmentation are...

  • Article
  • Open Access
1 Citations
3,685 Views
23 Pages

13 June 2023

The semantic segmentation of 3D medical 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 transm...

  • Article
  • Open Access
5 Citations
2,646 Views
13 Pages

16 April 2024

The non-destructive study of soil micromorphology via computed tomography (CT) imaging has yielded significant insights into the three-dimensional configuration of soil pores. Precise pore analysis is contingent on the accurate transformation of CT i...

  • Article
  • Open Access
1 Citations
3,850 Views
13 Pages

17 January 2025

Background: Accurate delineation of lesions in acute ischemic stroke is important for determining the extent of tissue damage and the identification of potentially salvageable brain tissues. Automatic segmentation on CT images is challenging due to t...

  • Article
  • Open Access
6 Citations
2,774 Views
19 Pages

Kidney Tumor Segmentation Based on DWR-SegFormer

  • Yani Deng,
  • Xin Liu,
  • Lianhe Shao,
  • Kai Wang,
  • Xihan Wang and
  • Quanli Gao

14 August 2024

Kidney cancer is a malignant tumor with a high mortality rate. The accurate segmentation of tumors from computed tomography (CT) scans can assist physicians in clinical diagnosis. We introduced a new segmentation network called DWR-SegFormer to addre...

  • Article
  • Open Access
861 Views
16 Pages

At present, some aging populations, such as those in Japan, face an underlying risk of inadequate medical resources. Using neural networks to assist doctors in locating the aorta in patients via computed tomography (CT) before surgery is a task with...

  • Article
  • Open Access
3 Citations
3,220 Views
14 Pages

13 September 2024

Background: The cross-sectional area of skeletal muscles at the level of the third lumbar vertebra (L3) measured from computed tomography (CT) images is an established imaging biomarker used to assess patients’ nutritional status. With the incr...

  • Article
  • Open Access
7 Citations
3,600 Views
17 Pages

Automated Motion Analysis of Bony Joint Structures from Dynamic Computer Tomography Images: A Multi-Atlas Approach

  • Benyameen Keelson,
  • Luca Buzzatti,
  • Jakub Ceranka,
  • Adrián Gutiérrez,
  • Simone Battista,
  • Thierry Scheerlinck,
  • Gert Van Gompel,
  • Johan De Mey,
  • Erik Cattrysse and
  • Jef Vandemeulebroucke
  • + 1 author

7 November 2021

Dynamic computer tomography (CT) is an emerging modality to analyze in-vivo joint kinematics at the bone level, but it requires manual bone segmentation and, in some instances, landmark identification. The objective of this study is to present an aut...

  • Article
  • Open Access
2 Citations
3,520 Views
18 Pages

Cardiac substructure segmentation is a prerequisite for cardiac diagnosis and treatment, providing a basis for accurate calculation, modeling, and analysis of the entire cardiac structure. CT (computed tomography) imaging can be used for a noninvasiv...

  • Article
  • Open Access
460 Views
21 Pages

Semi-Automated Lung Segmentation Based on Region-Growing Methods in Interstitial Lung Disease

  • Mădălin-Cristian Moraru,
  • Cristiana-Iulia Dumitrescu,
  • Suzana Măceș,
  • Cătălin Ciobîrcă,
  • Mihai Popescu,
  • Luana Corina Lascu,
  • Dragoș-Ovidiu Alexandru,
  • Diana-Maria Trască,
  • Diana Maria Ciobîrcă and
  • Daniela Dumitrescu
  • + 3 authors

8 February 2026

Background: One of the main tools for investigating pulmonary disorders is computed tomography. Starting with a CT, analyses can be qualitative (e.g., direct interpretation of 2D slices, virtual bronchoscopy) or quantitative (e.g., fibrosis score). Q...

  • Article
  • Open Access
53 Citations
6,536 Views
19 Pages

SVseg: Stacked Sparse Autoencoder-Based Patch Classification Modeling for Vertebrae Segmentation

  • Syed Furqan Qadri,
  • Linlin Shen,
  • Mubashir Ahmad,
  • Salman Qadri,
  • Syeda Shamaila Zareen and
  • Muhammad Azeem Akbar

2 March 2022

Precise vertebrae segmentation is essential for the image-related analysis of spine pathologies such as vertebral compression fractures and other abnormalities, as well as for clinical diagnostic treatment and surgical planning. An automatic and obje...

  • Article
  • Open Access
2 Citations
1,926 Views
21 Pages

An Algorithm Based on DAF-Net++ Model for Wood Annual Rings Segmentation

  • Zhedong Ge,
  • Ziheng Zhang,
  • Liming Shi,
  • Shuai Liu,
  • Yisheng Gao,
  • Yucheng Zhou and
  • Qiang Sun

The semantic segmentation of annual rings is a research topic of interest in wood chronology. To solve the problem of wood annual rings being difficult to segment in dense areas and being greatly affected by defects such as cracks and wormholes, this...

  • Article
  • Open Access
5 Citations
2,853 Views
12 Pages

Since the start of 2020, the outbreak of the Coronavirus disease (COVID-19) has been a global public health emergency, and it has caused unprecedented economic and social disaster. In order to improve the diagnosis efficiency of COVID-19 patients, a...

  • Article
  • Open Access
14 Citations
5,548 Views
22 Pages

Fully Automated Thrombus Segmentation on CT Images of Patients with Acute Ischemic Stroke

  • Mahsa Mojtahedi,
  • Manon Kappelhof,
  • Elena Ponomareva,
  • Manon Tolhuisen,
  • Ivo Jansen,
  • Agnetha A. E. Bruggeman,
  • Bruna G. Dutra,
  • Lonneke Yo,
  • Natalie LeCouffe and
  • Henk Marquering
  • + 15 authors

Thrombus imaging characteristics are associated with treatment success and functional outcomes in stroke patients. However, assessing these characteristics based on manual annotations is labor intensive and subject to observer bias. Therefore, we aim...

  • Article
  • Open Access
24 Citations
11,042 Views
22 Pages

Brain hemorrhage is a type of stroke which is caused by a ruptured artery, resulting in localized bleeding in or around the brain tissues. Among a variety of imaging tests, a computerized tomography (CT) scan of the brain enables the accurate detecti...

  • Article
  • Open Access
11 Citations
5,291 Views
19 Pages

Lung and Infection CT-Scan-Based Segmentation with 3D UNet Architecture and Its Modification

  • Mohammad Hamid Asnawi,
  • Anindya Apriliyanti Pravitasari,
  • Gumgum Darmawan,
  • Triyani Hendrawati,
  • Intan Nurma Yulita,
  • Jadi Suprijadi and
  • Farid Azhar Lutfi Nugraha

10 January 2023

COVID-19 is the disease that has spread over the world since December 2019. This disease has a negative impact on individuals, governments, and even the global economy, which has caused the WHO to declare COVID-19 as a PHEIC (Public Health Emergency...

  • Article
  • Open Access
4 Citations
5,629 Views
15 Pages

Enhancing U-Net Segmentation Accuracy Through Comprehensive Data Preprocessing

  • Talshyn Sarsembayeva,
  • Madina Mansurova,
  • Assel Abdildayeva and
  • Stepan Serebryakov

8 February 2025

The accurate segmentation of lung regions in computed tomography (CT) scans is critical for the automated analysis of lung diseases such as chronic obstructive pulmonary disease (COPD) and COVID-19. This paper focuses on enhancing the accuracy of U-N...

  • Article
  • Open Access
2 Citations
2,216 Views
19 Pages

An Automatic Method for Elbow Joint Recognition, Segmentation and Reconstruction

  • Ying Cui,
  • Shangwei Ji,
  • Yejun Zha,
  • Xinhua Zhou,
  • Yichuan Zhang and
  • Tianfeng Zhou

3 July 2024

Elbow computerized tomography (CT) scans have been widely applied for describing elbow morphology. To enhance the objectivity and efficiency of clinical diagnosis, an automatic method to recognize, segment, and reconstruct elbow joint bones is propos...

  • Article
  • Open Access
11 Citations
3,354 Views
23 Pages

20 November 2023

The majority of cancer-related deaths globally are due to lung cancer, which also has the second-highest mortality rate. The segmentation of lung tumours, treatment evaluation, and tumour stage classification have become significantly more accessible...

  • Review
  • Open Access
5 Citations
3,139 Views
23 Pages

Enhancing 3D Lung Infection Segmentation with 2D U-Shaped Deep Learning Variants

  • Anindya Apriliyanti Pravitasari,
  • Mohammad Hamid Asnawi,
  • Farid Azhar Lutfi Nugraha,
  • Gumgum Darmawan and
  • Triyani Hendrawati

24 October 2023

Accurate lung segmentation plays a vital role in generating 3D projections of lung infections, which contribute to the diagnosis and treatment planning of various lung diseases, including cases like COVID-19. This study capitalizes on the capabilitie...

  • Article
  • Open Access
1 Citations
2,449 Views
20 Pages

29 July 2024

Kidney segmentation from abdominal computed tomography (CT) images is essential for computer-aided kidney diagnosis, pathology detection, and surgical planning. This paper introduces a kidney segmentation method for clinical contrast-enhanced CT imag...

  • Article
  • Open Access
1 Citations
1,340 Views
23 Pages

An Ensemble Learning for Automatic Stroke Lesion Segmentation Using Compressive Sensing and Multi-Resolution U-Net

  • Mohammad Emami,
  • Mohammad Ali Tinati,
  • Javad Musevi Niya and
  • Sebelan Danishvar

A stroke is a critical medical condition and one of the leading causes of death among humans. Segmentation of the lesions of the brain in which the blood flow is impeded because of blood coagulation plays a vital role in drug prescription and medical...

  • Article
  • Open Access
14 Citations
5,458 Views
18 Pages

29 September 2020

Malignant lesions are a huge threat to human health and have a high mortality rate. Locating the contour of organs is a preparation step, and it helps doctors diagnose correctly. Therefore, there is an urgent clinical need for a segmentation model sp...

  • Article
  • Open Access
9 Citations
3,755 Views
13 Pages

Development of a Convolutional Neural Network Based Skull Segmentation in MRI Using Standard Tesselation Language Models

  • Rodrigo Dalvit Carvalho da Silva,
  • Thomas Richard Jenkyn and
  • Victor Alexander Carranza

16 April 2021

Segmentation is crucial in medical imaging analysis to help extract regions of interest (ROI) from different imaging modalities. The aim of this study is to develop and train a 3D convolutional neural network (CNN) for skull segmentation in magnetic...

  • Article
  • Open Access
3 Citations
2,235 Views
21 Pages

MaskAppendix: Backbone-Enriched Mask R-CNN Based on Grad-CAM for Automatic Appendix Segmentation

  • Emre Dandıl,
  • Betül Tiryaki Baştuğ,
  • Mehmet Süleyman Yıldırım,
  • Kadir Çorbacı and
  • Gürkan Güneri

22 October 2024

Background: A leading cause of emergency abdominal surgery, appendicitis is a common condition affecting millions of people worldwide. Automatic and accurate segmentation of the appendix from medical imaging is a challenging task, due to its small si...

  • Article
  • Open Access
22 Citations
5,658 Views
15 Pages

Cross-Domain Data Augmentation for Deep-Learning-Based Male Pelvic Organ Segmentation in Cone Beam CT

  • Jean Léger,
  • Eliott Brion,
  • Paul Desbordes,
  • Christophe De Vleeschouwer,
  • John A. Lee and
  • Benoit Macq

8 February 2020

For prostate cancer patients, large organ deformations occurring between radiotherapy treatment sessions create uncertainty about the doses delivered to the tumor and surrounding healthy organs. Segmenting those regions on cone beam CT (CBCT) scans a...

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