Hemodynamic effects of stenting on wide-necked intracranial aneurysms.

Background: Stent placement has been widely used to assist coiling in cerebral aneurysm treatments. The present study aimed to investigate the hemodynamic effects of stenting on wide-necked intracranial aneurysms.

Methods: Three idealized plexiglass aneurismal models with different geometries before and after stenting were created, and their three-dimensional computational models were constructed.

[Development of a print quality inspection system for biochips].

An automatic inspection system for biochip's print quality is presented in this paper. It consists of an automatic mechanical control, a CCD sensor for getting the image of PET boart, and the special computer software for image processing and recognition. Experimental results indicate that this system is capable of providing a precise and effective realtime inspection for biochips' print quality.

Numerical simulations of stenosed femoral artery with symmetric 2-way bypass graft.

The numerical simulation of the conventional 1-way bypass graft and the presented 2-way bypass graft used in the stenosed femoral arteries were completed. Purpose of the present study was to ascertain whether the modified geometry configuration of 2-way bypass graft could improve the flow conditions of femoral bypass graft. The physiological flows in 1-way and 2-way models were simulated with finite element method under the same calculation conditions.

Collagen fiber angle in the submucosa of small intestine and its application in Gastroenterology.

Aim: To propose a simple and effective method suitable for analyzing the angle and distribution of 2-dimensional collagen fiber in larger sample of small intestine and to investigate the relationship between the angles of collagen fiber and the pressure it undergoes.

Methods: A kind of 2-dimensional visible quantitative analyzing technique was described. Digital image-processing method was utilized to determine the angle of collagen fiber in parenchyma according to the changes of area analyzed and further to investigate quantitatively the distribution of collagen fiber.