CT与MR检查对弥漫性轴索损伤诊断价值的研究
[Abstract]:Objective: to study the difference between CT and MRI routine sequence (T1WIT2WIFLAIR) and special sequence (DWI,SWI) in detecting (DAI) lesions with diffuse axonal injury. There is no difference in the detection rate between hemorrhagic and non-hemorrhagic lesions of diffuse axonal injury by various imaging methods, from which a more valuable diagnostic method is obtained to improve the clinical understanding of the detection and disease of diffuse axonal injury. Methods: the clinical data and imaging data of the patients diagnosed as diffuse axonal injury from March 2013 to January 2015 in the Department of Neurosurgery, Dongguan Branch, affiliated Hospital of Yan'an University were collected. According to the inclusion criteria and exclusion criteria, a total of 37 patients were selected for imaging analysis. All 37 cases of clinically diagnosed DAI underwent craniocerebral CT examination in our hospital imaging department within 72 hours after injury. According to the results of initial CT, 37 cases underwent MRI examination as far as possible within one week after admission according to their stable condition. If necessary, the MRI sequence can be delayed until the patient's vital signs are stable, including T _ 1WI _ I _ T _ 2W _ I _ FLAIRI / DWI _ I sequence. Patients with irritability were given a certain dose of tranquilizer to avoid the influence of the results of the examination. Ct and MRI imaging data were obtained from the CT room of our hospital. At the same time, the number of lesions in patients with DAI was obtained by a senior attending physician in neurology and an experienced radiologist. Results in 37 cases of DAI, the number of missed CT diagnosis in brain stem was less than that in other locations, and the number of missed diagnosis in cerebellar lesions was higher. Flair was the most frequently detected lesions in routine sequence. There was significant difference between the number of lesions detected on T _ 1WI and T _ 1WI (蠂 ~ 2 = 22.930) (蠂 ~ 2 = 22.930). It was found that there was a significant difference between SWI and DWI in detecting the most lesions in special sequences (蠂 ~ 2: 13.090) (蠂 ~ 2: 13.090). CT,FLAIR,SWI was the most sensitive to non-bleeding lesions, followed by FLAIR (蠂 2188.168 P0.001), followed by DWI (蠂 21363.452P0. 001). Conclusion: SWI sequence is the most detectable number of lesions in patients with DAI. The detection rate of SWI in non hemorrhagic lesions was significantly higher than that in other sequences. Therefore, it can be said that DWI and SWI sequences provide an important imaging basis for the definite diagnosis of DAI, and have high application value.
【学位授予单位】:延安大学
【学位级别】:硕士
【学位授予年份】:2015
【分类号】:R651.15
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