论文题名(中文): | 颅内动脉粥样硬化评分体系的构建及血糖 波动状态对颅内动脉斑块影响的 MRI 研究 |
姓名: | |
论文语种: | chi |
学位: | 硕士 |
学位类型: | 专业学位 |
学校: | 北京协和医学院 |
院系: | |
专业: | |
指导教师姓名: | |
论文完成日期: | 2025-04-30 |
论文题名(外文): | Construction of intracranial atherosclerosis scoring system and MRI study on the influence of blood glucose fluctuation state on intracranial arterial plaques |
关键词(中文): | |
关键词(外文): | Intracranial Arteriosclerosis Brain Infarction High-resolution magnetic resonance vessel wall imaging Type 2 diabetes mellitus Blood glucose fluctuations |
论文文摘(中文): |
第一部分 颅内动脉粥样硬化评分的建立及可行性研究 研究目的 初步建立一种用于全面反映颅内动脉粥样硬化病变严重程度的评分体系, 并探讨该评分与动脉粥样硬化危险因素以及脑梗死事件之的相关性。 材料与方法 回顾性分析 2021 年 1 月至 2024 年 8 月,在北京医院接受头颈部计算 机断层扫描血管成像(Computer tomography angiography ,CTA)检查,并在 CTA 检查前后一个月内进行了头部磁共振成像(Magnetic Resonance Imaging ,MRI)检 查的患者。根据颅内血管狭窄的程度及数量构建颅内动脉粥样硬化评分(Intracranial Atherosclerosis Disease Score ,ICADS)系统。根据 ICADS 的四分位数分组, 探讨 ICADS 与动脉粥样硬化危险因素之间的关系。将入组患者分为急性脑梗死组、 无急性脑梗死组,比较两组患者 ICADS、脑血管病危险因素之间的差异,并探讨脑 梗死事件与 ICADS 之间的相关性。 结果 不同 ICADS 组之间,高血压、糖尿病患者的比例具有统计学差异,多元线性 回归分析显示高血压(B=1.17,95%CI:0.20~2.14,P<0.05)、糖尿病(B=2.75,95%CI: 1.85~3.64,P<0.001)是 ICADS 较高的危险因素。急性脑梗死组的 ICADS 高于无 急性脑梗死组(9 分比 6 分,P<0.001),较高的 ICADS 是脑梗死的危险因素(OR=1.10 ,95%CI:1.07~1.14 ,P<0.001)。 结论 ICADS 可以较为全面地反映颅内动脉粥样硬化病变严重程度,与脑梗死事件 具有相关性,可以用于临床对脑梗死高危患者的筛查。 第二部分 血糖波动状态对颅内动脉斑块影响的MRI研究 研究目的 本研究利用动态血糖监测仪器评估患者血糖波动状态,探讨2型糖尿病患者的血糖波动情况对颅内动脉粥样硬化的影响。 材料与方法 前瞻性纳入2023 年1 月至2024 年10 月期间因颅内动脉粥样硬化性狭窄而就诊于神经内科的患者。从临床诊疗记录中收录患者基本信息与既往史资料。采用PACS 软件和 Vessel Explorer 软件进行斑块特征的测量与评估,内容包括对颅内动脉最大狭窄处斑块的长度、厚度、狭窄程度和强化情况的分析,并计算斑块强化比率。对入组的二型糖尿病患者进行连续的动态血糖监测,获得平均血糖波动幅度(mean amplitude of plasma glucose excursions ,MAGE)。根据 MAGE 是否大于3.9 mmol/L,分为血糖波动阴性组和血糖波动阳性组;根据 MAGE 的四分位数平均分为四组组,分别探讨 MAGE 与颅内动脉粥样硬化斑块影像特征之间的关系。采用卡方检验或 Fisher 精确概率法对不同组间的分类资料进行统计学比较;使用t 检验或秩和检验比较组间差异,包括颅内动脉斑块负荷、斑块强化率、斑块长度等。 结果 与非二型糖尿病患者[4.20 (3.40,5.40)]相比,血糖波动阳性 [ 5. 10 (3.95,9.25) ] 及血糖波动阴性[6.05(4.57,7.95)]的二型糖尿病患者的颅内动脉最大狭窄处斑块较长。同时血糖波动阳性的二型糖尿病患者[1.74 (1.19,2. 17)]的斑块强化率也明显高于非二型糖尿病患者[1. 17(0.63, 1.45)]及血糖波动阴性[1. 19 (1.02, 1.39)]的二型糖尿病患者。余斑块厚度、斑块负荷、血管重构指数等其他斑块特征未见统计学差异。进一步根据 MAGE 的四分位数分组,结果表明斑块强化比率在不同血糖波动程度组间存在显著差异 ( χ²=8.87,P=0.031),血糖波动程度较大的患者斑块强化程度更高。 结论 不同血糖波动状态影响颅内动脉粥样硬化性斑块特征,血糖波动阳性的二型糖尿病患者斑块更长、斑块强化程度更高。 |
论文文摘(外文): |
PART ONE. Establishment and Feasibility Study of an Intracranial Atherosclerosis Scoring System Purpose This study aims to initially establish a scoring system for comprehensively reflecting the severity of intracranial atherosclerotic lesions and to explore the correlation between this score and atherosclerotic risk factors as well as stroke events. Materials and Methods This study retrospectively analyzed patients who underwent head and neck CTA examinations and had head MRI examinations within one month before or after the CTA examination from January 2021 to August 2024 in Beijing Hospital. An intracranial atherosclerosis disease score (ICADS) system was constructed based on the degree and number of vascular stenosis. The relationship between ICADS and atherosclerotic risk factors was explored by grouping patients according to the quartile of ICADS. Patients were divided into acute stroke group and non-acute stroke group to compare differences in ICADS and cerebrovascular disease risk factors between the two groups, and to investigate the correlation between stroke events and ICADS. Results There were statistically significant differences in the proportions of patients with hypertension and diabetes among different ICADS groups. Multiple linear regression analysis showed that hypertension (B= 1.17, 95%CI: 0.20-2.14, P<0.05) and diabetes (B=2.75, 95% CI: 1.85-3.64, P<0.001) were risk factors for higher ICADS. The ICADS was higher in the acute stroke group than in the non-acute stroke group (9 vs. 6, P<0.001), and a higher ICADS was identified as a risk factor for stroke (OR= 1.10, 95% CI: 1.07-1.14, P<0.001). Conclusion ICADS can comprehensively reflect the severity of intracranial atherosclerotic lesions and is correlated with stroke events, making it useful for clinical screening of high-risk patients for stroke. PART TWO. MRI Study on the Influence of Blood Glucose Fluctuation State on Intracranial Artery Plaque Purpose This study used a continuous glucose monitoring device to assess the glucose fluctuation status of patients and explored the impact of glucose fluctuations in patients with type 2 diabetes mellitus on intracranial atherosclerotic plaques. Materials and Methods A total of 114 patients who visited the Department of Neurology due to intracranial atherosclerotic stenosis from January 2023 to October 2024 were prospectively enrolled. Basic information and past medical history data of the patients were collected from clinical diagnosis and treatment records. PACS software and Vessel Explorer software were used to measure and evaluate the intracranial plaque characteristics, including the analysis of the length, thickness, degree of stenosis, and enhancement of the plaque at the maximum stenosis site of the intracranial artery, and the plaque enhancement rate was calculated. Continuous dynamic glucose monitoring was performed on the enrolled patients with type 2 diabetes mellitus. According to whether the mean amplitude of plasma glucose excursions (MAGE) obtained from the monitoring was greater than 3.9 mmol/L, they were divided into a negative glucose fluctuation group and a positive glucose fluctuation group. The enrolled patients also be divided into four groups according the quatiles of the MAGE. The chi-square test or Fisher's exact probability method was used for statistical comparison of the categorical data between different groups; the t-test or rank sum test was used to compare the differences between groups, including the intracranial arterial plaque burden, plaque enhancement rate, plaque length, and so on. Results Compared with patients without type 2 diabetes [4.20 (3.40, 5.40)], patients with type 2 diabetes who had positive blood glucose fluctuations [5. 10 (3.95, 9.25)] and those with negative blood glucose fluctuations [6.05 (4.57, 7.95)] had a longer length of the plaque at the maximum stenosis site of the intracranial artery. Meanwhile, the plaque enhancement ratio of patients with type 2 diabetes who had positive blood glucose fluctuations [1.74 (1.19, 2. 17)] was significantly higher than that of patients without type 2 diabetes [1.17 (0.63, 1.45)] and those with type 2 diabetes who had negative blood glucose fluctuations [1. 19 (1.02, 1.39)]. There were no statistically significant differences in other plaque characteristics such as the remaining plaque thickness, plaque burden, and vascular remodeling index. Furthermore, there were significant differences in the plaque enhancement ratio among different quartile groups ( χ 2 = 8.87, P = 0.031). Patients with greater fluctuations in blood sugar have a higher degree of plaque enhancement. Conclusion Blood glucose fluctuation states affect the characteristics of intracranial atherosclerotic plaques. In type 2 diabetes patients with positive blood glucose fluctuations, the plaques are longer and the degree of plaque enhancement is higher. |
开放日期: | 2025-06-04 |