Automatic lumen segmentation using uniqueness of vascular connected region for intravascular optical coherence tomography

2021 ◽  
Author(s):  
Fengyu Zhu ◽  
Zhenyang Ding ◽  
Kuiyuan Tao ◽  
Qingrui Li ◽  
Hao Kuang ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Connected Region ◽  
Optical Coherence ◽  
Lumen Segmentation ◽  
Intravascular Optical Coherence Tomography

Lumen Segmentation in Intravascular Optical Coherence Tomography Using Backscattering Tracked and Initialized Random Walks

2016 ◽  
Vol 20 (2) ◽  
pp. 606-614 ◽  
Author(s):  
Abhijit Guha Roy ◽  
Sailesh Conjeti ◽  
Stephane G. Carlier ◽  
Pranab K. Dutta ◽  
Adnan Kastrati ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Random Walks ◽  
Optical Coherence ◽  
Lumen Segmentation ◽  
Intravascular Optical Coherence Tomography

scholarly journals Automatic Lumen Segmentation in Intravascular Optical Coherence Tomography Using Morphological Features

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 88859-88869 ◽  
Author(s):  
Huishuo Zhao ◽  
Bin He ◽  
Zhenyang Ding ◽  
Kuiyuan Tao ◽  
Tianduo Lai ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Morphological Features ◽  
Optical Coherence ◽  
Lumen Segmentation ◽  
Intravascular Optical Coherence Tomography

Automatic vessel lumen segmentation and stent strut detection in intravascular optical coherence tomography

2011 ◽  
Vol 39 (1) ◽  
pp. 503-513 ◽  
Author(s):  
Stavros Tsantis ◽  
George C. Kagadis ◽  
Konstantinos Katsanos ◽  
Dimitris Karnabatidis ◽  
George Bourantas ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Coherence ◽  
Vessel Lumen ◽  
Lumen Segmentation ◽  
Stent Strut ◽  
Intravascular Optical Coherence Tomography

scholarly journals Automatic Lumen Segmentation in Intravascular Optical Coherence Tomography Images Using Level Set

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Yihui Cao ◽  
Kang Cheng ◽  
Xianjing Qin ◽  
Qinye Yin ◽  
Jianan Li ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Level Set ◽  
Guide Wire ◽  
Divide And Conquer ◽  
Optical Coherence ◽  
Unstable Plaque ◽  
Lumen Segmentation ◽  
Intravascular Optical Coherence Tomography ◽  
Artery Disease ◽  
Automatic Level

Automatic lumen segmentation from intravascular optical coherence tomography (IVOCT) images is an important and fundamental work for diagnosis and treatment of coronary artery disease. However, it is a very challenging task due to irregular lumen caused by unstable plaque and bifurcation vessel, guide wire shadow, and blood artifacts. To address these problems, this paper presents a novel automatic level set based segmentation algorithm which is very competent for irregular lumen challenge. Before applying the level set model, a narrow image smooth filter is proposed to reduce the effect of artifacts and prevent the leakage of level set meanwhile. Moreover, a divide-and-conquer strategy is proposed to deal with the guide wire shadow. With our proposed method, the influence of irregular lumen, guide wire shadow, and blood artifacts can be appreciably reduced. Finally, the experimental results showed that the proposed method is robust and accurate by evaluating 880 images from 5 different patients and the average DSC value was 98.1%±1.1%.

Medipass-iscan: Automatic lumen segmentation of intravascular optical coherence tomography images

2015 ◽  
Vol 241 (1) ◽  
pp. e162 ◽  
Author(s):  
X. Ju ◽  
R. Wilson ◽  
C. Paterson ◽  
H. Aung ◽  
R. Sayer ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Coherence ◽  
Lumen Segmentation ◽  
Intravascular Optical Coherence Tomography

Optical coherence tomography for elucidation of flow-diversion phenomena: The concept of endothelized mural thrombus behind reversible in-stent stenosis in flow-diverters

2021 ◽  
pp. 159101992110034
Author(s):  
Andre Monteiro ◽  
Demetrius K Lopes ◽  
Amin Aghaebrahim ◽  
Ricardo Hanel
Keyword(s):  
Optical Coherence Tomography ◽  
Intracranial Aneurysms ◽  
Flow Diversion ◽  
Optical Coherence ◽  
Recurrence Rates ◽  
Oct Imaging ◽  
Intravascular Optical Coherence Tomography ◽  
Stenotic Area ◽  
Flow Diverters ◽  
Stent Stenosis

Purpose Flow-diverters have revolutionized the endovascular treatment of intracranial aneurysms, offering a durable solution to aneurysms with high recurrence rates after conventional stent-assisted coiling. Events that occur after treatment with flow-diversion, such as in-stent stenosis (ISS) are not well understood and require further assessment. After assessing an animal model with Optical Coherence Tomography (OCT), we propose a concept that could explain the mechanism causing reversible ISS after treatment of intracranial aneurysms with flow-diverters. Methods Six Pipeline Flex embolization devices (PED-Flex), six PED with Shield technology (PED-Shield), and four Solitaire AB devices were implanted in the carotid arteries (two stents per vessel) of four pigs. Intravascular optical coherence tomography (OCT) and digital subtraction angiography (DSA) images obtained on day 21 were compared to histological specimens. Results A case of ISS in a PED-Flex device was assessed with OCT imaging. Neointima with asymmetrical topography completely covering the PED struts was observed. Histological preparations of the stenotic area demonstrated thrombus on the surface of device struts, covered by neointima. Conclusion This study provides a plausible concept for reversible ISS in flow-diverters. Based on an observation of a previous experiment, we propose that similar cases of ISS are related to thrombus presence underneath endothelization, but further experiments focused on this phenomenon are needed. Optical Coherence Tomography will be useful tool when available for clinical use.

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