Distortion And Displacement Measurement Research On Aortic Arch

Measuring distortion and displacement of aortic arch in station of pulsatile blood flow is all long research subject that is concerned by medical imaging diagnosis and blood flow dynamics, but the research on this subject is very few, the reason consists in the difficulty of measuring. Not only the dimensional configuration of aortic arch influence measurement, but also the movement of static curve border and dynamic curve border of aortic arch directly influence the analysis research on distortion and displacement measurement of aortic arch. Along with people embedding blood flow dynamics research on aortic arch and need of medicine to disease diagnosis on aortic arch, the distortion and displacement measurement is more and more conspicuous and show important status. The paper discusses the movement and distortion dynamic image measurement method based on CCD image measurement technology from the point of view of sequence image process.Combined with actual feature of aortic arch sequence image the paper adopt grads border detecting method based on measuring windows on the base of general reference to all kinds of image processing arithmetic. Aimed at solving detection and track difficulty of aortic arch dynamic image we proposed dynamic image detection method based on coordinate track.In the view of the measurement of the aorta arch, this paper brought out the definition of the diameter of the aorta arch, the midpoint displacement of the aorta arch and the scope of the diameter to realize the ration expression of the motion and deformation of aortic arch. The paper realized the ration measurement and analysis of the motion and deformation of aortic arch.According to the rabbit and dog experiment in Beijing Anzhen Hospital and the analysis of the result, we can get the conclusion: The image measuring technique had a good effect in measuring. Digital image processing technique ensured the accuracy and real-time performance of the measurement. This method can be used to analyze the motion and deformation rule of the aorta in vivo.