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Computer aided diagnosis plays an important role in automatic detection of abnormal shadow area on CT images. The method of an automatic detection of lung nodules regions of interest (ROI) is presented in this paper. Firstly, the lung areas are segmented from CT images. Then, the initial ROI including nodules and blood vessels in lung areas are extracted by Top-hat filter. Thirdly, the second ROI...
Computer-assisted recognition of anatomical objects in medical images is at the center of many important clinical applications. Automatic extraction and recognition of human abdominal structures from CT images has been particularly challenging for medical imaging research and applications. Intra-patient and inter-patient spatial, morphological and intensity variability is typically significantly contributing...
The accurate knowledge of the liver structure including blood vessels topography, liver surface and lesion localizations is usually required in treatments like liver ablations and radiotherapy. In this paper, we propose an approach for automatic segmentation of liver complex geometries. It consists of applying a graph-cut method initialized by an adaptive threshold. The algorithm has been tested on...
Despite deformable models' wide applicability in medical image segmentation, they are sometimes not adequate by themselves to achieve a desired degree of automation, a guaranteed level of accuracy, or an outcome beyond segmentation. In such situations, other methods may be combined with a deformable model to extend its abilities, overcome its shortcomings or increase the assurance of the segmentation...
The research on digital visible human is of great significance and application value. The US Visible Human Project (VHP) created the first digital image data set of a complete human (one male and one female) in 1995. To promote a worldwide application-oriented VHR, more visible human data sets representative of different populations of the world are in demand. The Chinese Visible Human (CVH) male...
Recently, transluminally placed endovascular prosthetic grafts is considered providing as a low-invasion treatment for aortic aneurysm. A stent graft, a kind of artificial blood vessel, is inserted and kept in an aneurysm to prevent rupture of the blood vessel. Stent graft design is a burden for doctors. Objective of our study is to develop a stent graft design support system. This paper proposes...
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