A Novel Method for Vessel Segmentation and Automatic Diagnosis of Vascular Stenosis

2019 ◽  
Author(s):  
Chenxin Sui ◽  
Zhuang Fu ◽  
Zeyu Fu ◽  
Yao Wang ◽  
Yu Zhuang ◽  
...  
Keyword(s):  
Vessel Segmentation ◽  
Automatic Diagnosis ◽  
Vascular Stenosis ◽  
Novel Method

Automatic Segmentation and Diagnosis Based on Multi-Scale Two-Stage Region Growing and Skeleton Extraction for Vessel Stenosis in Coronary Angiography

2020 ◽  
Vol 10 (2) ◽  
pp. 446-451
Author(s):  
Wu Deng ◽  
Kai Luo ◽  
Qinke Shi ◽  
Yi Yang ◽  
Ning Ning
Keyword(s):  
Coronary Angiography ◽  
Hessian Matrix ◽  
Region Growing ◽  
Vessel Segmentation ◽  
Good Effect ◽  
Skeleton Extraction ◽  
Seed Point ◽  
Automatic Diagnosis ◽  
Small Vessels ◽  
Vessel Stenosis

Although great progress has been made in vessel segmentation, the existing methods still can not accurately segment small vessels. A novel vessel segmentation and automatic diagnosis in coronary angiography image was proposed. During vessel segmentation, a new vessel function based on Hessian matrix was put forward. Then the vessel contour was extracted by the dual-stage region growing with automatic selection of seed point. Next, the automatic diagnosis was realized by vessel skeleton extraction, skeleton point search and diameter measurement. The experimental results demonstrate that our proposed vessel segmentation can extract the main branch contour accurately and have a good effect on the enhancement and segmentation of small vessels. The automatic diagnosis of vessel stenosis is fast. With a relatively accurate diagnosis result, it can provide a good reference and quantitative basis for the final judgment of the doctor.

A Novel Method for Low-Contrast and High-Noise Vessel Segmentation and Location in Venipuncture

2017 ◽  
Vol 36 (11) ◽  
pp. 2216-2227 ◽  
Author(s):  
Yuhe Li ◽  
Zhendong Qiao ◽  
Shaoqin Zhang ◽  
Zhenhuan Wu ◽  
Xueqin Mao ◽  
...  
Keyword(s):  
Vessel Segmentation ◽  
High Noise ◽  
Low Contrast ◽  
Novel Method

COMPUTATION OF VESSELNESS IN CTA IMAGES FOR FAST AND INTERACTIVE VESSEL SEGMENTATION

2007 ◽  
Vol 07 (01) ◽  
pp. 159-176 ◽  
Author(s):  
WENLI CAI ◽  
GORDON J. HARRIS ◽  
HIROYUKI YOSHIDA
Keyword(s):  
Rapid Development ◽  
Computed Tomographic Angiography ◽  
Vessel Segmentation ◽  
Interactive Segmentation ◽  
Fast Marching ◽  
Computed Tomographic ◽  
Novel Method ◽  
Vascular Structures ◽  
Speed Function ◽  
Tomographic Angiography

With the rapid development of multi-detector computed tomography (MDCT) that results in improving the temporal and spatial resolution of patient data, clinical use of computed tomographic angiography (CTA) is increasing. Vessel segmentation can be challenging in CTA, but is needed for isolation of vascular structures. In this paper, a novel method for computation of vesselness in CTA images is presented, including a CTA transfer function prior to the vesselness computation for reducing the artifacts caused by the false-positive responses of a Hessian-based line filter, as well as a hierarchical structure, called MIP-volume pyramid, for accelerating the computation of vesselness. Using the computed vesselness, we present an interactive segmentation method for each individual vessel by applying a vesselness speed function in a fast marching level set method. Our new method was shown to provide an effective and efficient way that allows vesselness to be applied to large CTA images. This method has been implemented successfully in CTA vessel segmentation and evaluation.

A novel method to model hepatic vascular network using vessel segmentation, thinning, and completion

2020 ◽  
Vol 58 (4) ◽  
pp. 709-724
Author(s):  
Xiaoyu Guo ◽  
Ruoxiu Xiao ◽  
Tao Zhang ◽  
Cheng Chen ◽  
Jiayu Wang ◽  
...  
Keyword(s):  
Vessel Segmentation ◽  
Vascular Network ◽  
Novel Method

The removal and morphology of intact biofilms from implanted venous access devices

1995 ◽  
Vol 53 ◽  
pp. 1020-1021
Author(s):  
M.A. Gregory ◽  
G.P. Hadley
Keyword(s):  
Patient Selection ◽  
Surgical Oncology ◽  
Venous Access ◽  
Common Procedure ◽  
Indwelling Catheters ◽  
Careful Patient ◽  
Novel Method ◽  
The Subject ◽  
Vascular Catheters ◽  
Venous Access Devices

The insertion of implanted venous access systems for children undergoing prolonged courses of chemotherapy has become a common procedure in pediatric surgical oncology. While not permanently implanted, the devices are expected to remain functional until cure of the primary disease is assured. Despite careful patient selection and standardised insertion and access techniques, some devices fail. The most commonly encountered problems are colonisation of the device with bacteria and catheter occlusion. Both of these difficulties relate to the development of a biofilm within the port and catheter. The morphology and evolution of biofilms in indwelling vascular catheters is the subject of ongoing investigation. To date, however, such investigations have been confined to the examination of fragments of biofilm scraped or sonicated from sections of catheter. This report describes a novel method for the extraction of intact biofilms from indwelling catheters.15 children with Wilm’s tumour and who had received venous implants were studied. Catheters were removed because of infection (n=6) or electively at the end of chemotherapy.

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