Integral enhancement method for digital subtraction angiography image
A technique of vascular imaging and digital subtraction, applied in image enhancement, image analysis, image data processing and other directions, can solve problems such as increasing patient pain, high-frequency loss of images, and reducing image contrast, reducing injection volume and collecting images. time, suppress random noise, enhance the effect of display function
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[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. In this embodiment, the imaging equipment used is: PHILIPS AlluraXper FD20; the contrast agent is: Omnipaque (iodine content specification: 350mg / ml, dosage 100ml), which is a product of (General Electric Pharmaceutical (Shanghai) Co., Ltd.). The method of contrast medium angiography was as follows: a catheter was punctured through the femoral artery, and a high-pressure syringe (Medrad Mark V Provis) was used to inject contrast medium into the aorta through a 5F gold-marked pigtail catheter. The filming speed was 6 frames / s, and the injection pressure was 600 psi (4136.85 kPa). In this embodiment, the software used in the algorithm is Matlab2010.
[0021] Such as figure 1 , the integral enhancement method of the digital subtraction angiography image of the present invention comprises the following steps:
[0022] (1) Delineate the region of ...
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