Quality Control Of MR Image For The Relationship Between The Facial Nerve And Blood Vessel In Patients With Hemifacial Spasm

The clinical application of magnetic resonance imaging increased the diagnostic rate of disease greatly, and promote the development of medical science, but the qua-lity control of magnetic resonance imaging clearly lags behind the rapid development of medical imaging technology, in order to obtain high-quality images, full to meet clinical needs meet the quality standards of medical imaging, magnetic resonance images obtained of the quality assurance and quality control is extremely important. In this study, the quality control theory under the guidance of relevant content, nalysis on the magnetic resonance imaging equipment, scanning parameters and sequence and other factors, combined with magnetic resonance imaging evaluation of facial nerve and vascular compression of the practical applications, analysis of traditional magnetic resonance imaging because of insufficient image quality, to improve image quality improvement program, looking to improve image quality and meet the clinical requirements of the optimization program, High-resolution 3D MRA in association with contrast-enhanced 3DSPGRI is an extremely sensitive and specific method for demonstrating vascular contact with facial nerve in patients with HFS,Which is the MRI preferred sequences above the muscle spasm of clinical patients.The thesis is divided into six parts.Firstly, it is the purpose, meaning and method of the thesis. From a practical application of the magnetic resonance images obtained on quality control as its research purposes, further increasing the value of MRI in order to achieve the social value of medical imaging.Secondly, the quality concept, quality control operation system, magnetic resonance imaging evaluation of facial nerve and vascular compression institute, image methods and related technical factors were reviewed.Then, the factors affecting the quality of magnetic resonance imaging analysis of magnetic resonance imaging analysis of the traditional technical factors, the traditional inspection techniques to find the quality problem of the main factors that improve the orientation.Then, on improving the quality of magnetic resonance images in rats. Clinical trials by an independent study, that MRI evaluation of patients with hemifacial spasm facial nerve and vascular compression of image quality control, access to more comprehensive and objective evaluation of the facial nerve and vein and artery of the oppression of the relationship between magnetic resonance imaging, to meet the clinical diagnostics, to achieve the purpose of quality control.Also, according to the actual application and found that the image control program and analyzed the feasibility of the proposed constructive Magnetic resonance imaging of neurovascular compression specification.Finally, a brief summary of the image quality control and to put forward their own vision of the future.