3D U-Net for brain stroke lesion segmentation on ISLES 2018 dataset

Author(s):  
Azhar Tursynova ◽  
Batyrkhan Omarov
2018 ◽  
Vol 11 (1) ◽  
pp. 286-295
Author(s):  
Sunil Melingi ◽  
◽  
Vijayalakshmi Vivekanand ◽  

Author(s):  
Qiqi Bao ◽  
Shiyu Mi ◽  
Bowen Gang ◽  
Wenming Yang ◽  
Jie Chen ◽  
...  

2019 ◽  
Vol 14 (4) ◽  
pp. 305-313 ◽  
Author(s):  
Suresh Chandra Satapathy ◽  
Steven Lawrence Fernandes ◽  
Hong Lin

Background: Stroke is one of the major causes for the momentary/permanent disability in the human community. Usually, stroke will originate in the brain section because of the neurological deficit and this kind of brain abnormality can be predicted by scrutinizing the periphery of brain region. Magnetic Resonance Image (MRI) is the extensively considered imaging procedure to record the interior sections of the brain to support visual inspection process. Objective: In the proposed work, a semi-automated examination procedure is proposed to inspect the province and the severity of the stroke lesion using the MRI. associations while known disease-lncRNA associations are required only. Method: Recently discovered heuristic approach called the Social Group Optimization (SGO) algorithm is considered to pre-process the test image based on a chosen image multi-thresholding procedure. Later, a chosen segmentation procedure is considered in the post-processing section to mine the stroke lesion from the pre-processed image. Results: In this paper, the pre-processing work is executed with the well known thresholding approaches, such as Shannon’s entropy, Kapur’s entropy and Otsu’s function. Similarly, the postprocessing task is executed using most successful procedures, such as level set, active contour and watershed algorithm. Conclusion: The proposed procedure is experimentally inspected using the benchmark brain stroke database known as Ischemic Stroke Lesion Segmentation (ISLES 2015) challenge database. The results of this experimental work authenticates that, Shannon’s approach along with the LS segmentation offers superior average values compared with the other approaches considered in this research work.</P>


PLoS ONE ◽  
2016 ◽  
Vol 11 (2) ◽  
pp. e0149828 ◽  
Author(s):  
Oskar Maier ◽  
Christoph Schröder ◽  
Nils Daniel Forkert ◽  
Thomas Martinetz ◽  
Heinz Handels

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 45715-45725 ◽  
Author(s):  
Long Zhang ◽  
Ruoning Song ◽  
Yuanyuan Wang ◽  
Chuang Zhu ◽  
Jun Liu ◽  
...  

2017 ◽  
Vol 35 ◽  
pp. 250-269 ◽  
Author(s):  
Oskar Maier ◽  
Bjoern H. Menze ◽  
Janina von der Gablentz ◽  
Levin Häni ◽  
Mattias P. Heinrich ◽  
...  

2021 ◽  
Vol 2021 ◽  
pp. 1-16
Author(s):  
Haisheng Hui ◽  
Xueying Zhang ◽  
Zelin Wu ◽  
Fenlian Li

For the segmentation task of stroke lesions, using the attention U-Net model based on the self-attention mechanism can suppress irrelevant regions in an input image while highlighting salient features useful for specific tasks. However, when the lesion is small and the lesion contour is blurred, attention U-Net may generate wrong attention coefficient maps, leading to incorrect segmentation results. To cope with this issue, we propose a dual-path attention compensation U-Net (DPAC-UNet) network, which consists of a primary network and auxiliary path network. Both networks are attention U-Net models and identical in structure. The primary path network is the core network that performs accurate lesion segmentation and outputting of the final segmentation result. The auxiliary path network generates auxiliary attention compensation coefficients and sends them to the primary path network to compensate for and correct possible attention coefficient errors. To realize the compensation mechanism of DPAC-UNet, we propose a weighted binary cross-entropy Tversky (WBCE-Tversky) loss to train the primary path network to achieve accurate segmentation and propose another compound loss function called tolerance loss to train the auxiliary path network to generate auxiliary compensation attention coefficient maps with expanded coverage area to perform compensate operations. We conducted segmentation experiments using the 239 MRI scans of the anatomical tracings of lesions after stroke (ATLAS) dataset to evaluate the performance and effectiveness of our method. The experimental results show that the DSC score of the proposed DPAC-UNet network is 6% higher than the single-path attention U-Net. It is also higher than the existing segmentation methods of the related literature. Therefore, our method demonstrates powerful abilities in the application of stroke lesion segmentation.


Sign in / Sign up

Export Citation Format

Share Document