抑郁症患者抗抑郁剂治疗前后脑动脉血流速度的改变及与认知功能的关系

目的:探讨短期治疗后抑郁症患者脑动脉血流速度的变化及其与注意力、执行功能的关系。方法:采用汉密尔顿抑郁量表(HAMD)评估70例抑郁症患者(抑郁症组)抑郁情绪,采用划销测验、威斯康星卡片分类测验(WCST)测试抑郁症组和65名健康对照者(健康对照组)的认知功能;运用经颅多普勒超声检测两组脑动脉血流速度,抑郁症组在抗抑郁治疗4~8周后再次重测。结果:短期治疗后抑郁症组基底动脉血流速度较治疗前增快(t=2.45,P0.05),但左、右大脑中动脉、左、右大脑前动脉血流速度仍低于健康对照组(t=-6.07~-12.14;P均0.01);治疗后抑郁症组划销测验成绩较治疗前明显提高,但除净分IV外仍低于健康对照组(t=-2.54~-17.33;P0.05或P0.01);WCST错误应答数、持续性错误数均较治疗前减少,但仍多于健康对照组(t=9.33~15.13;P均0.01)。相关分析显示,治疗后大脑动脉平均血流速度与划销测验、WCST成绩显著相关(P0.05或P0.01);椎动脉血流速度差值与划销测验总净分差值、WCST错误应答数差值及持续性错误数差值呈正相关(r=0.454,0.270,0.378;P均0.01)。结论:短期治疗后抑郁症患者脑动脉平均血流速度与注意力、执行功能均得到一定程度的改善,但仍未恢复到正常状态;注意力与执行功能受损可能与脑动脉平均血流速度的改变有关。     

抑郁症治疗前后执行功能及其与血清脑源性神经营养因子水平的关系

目的 探讨抑郁症患者执行功能、血清脑源性神经营养因子(BDNF)水平治疗前后的动态变化及其与抑郁严重程度三者之间的关系.方法 采用威斯康星卡片分类试验(WCST)和汉密尔顿抑郁量表(HAMD)分别评定77例抑郁症患者抗抑郁药物治疗4周前后及74名正常对照组的执行功能和抑郁严重程度;采用酶联免疫吸附法(ELISA)测定受试者血清BDNF水平.结果 与对照组比较,患者组治疗前WCST的总应答数、持续性错误数、随机错误数均增加,完成分类数减少,血清BDNF水平降低[(36.34±15.16)ng/mL vs(23.09±12.13)ng/mL],上述差异均有统计学意义(P＜0.01),而4周治疗后两组间的上述指标的差异均无统计学意义(P＞0.05).与治疗前比较,患者组治疗后完成分类数增加、血清BDNF水平[(37.37±21.04)ng/mL]升高,总应答数、持续错误数、随机错误数减少和HAMD总分降低,上述差异均有统计学意义(P＜0.01).治疗前后血清BDNF水平与相应HAMD总分值均呈负相关(r=-0.28,P=0.01;r=-0.28,P=0.01),而治疗前WCST 5个指标及其治疗后变化值分别与相应血清BDNF水平、HAMD总分值及疗后变化值均无相关(P＞0.05).结论 抑郁症患者存在执行功能受损和血清BDNF水平的下降,后者与抑郁严重程度密切相关,且抗抑郁治疗后执行功能和抑郁症状均改善,血清BDNF水平升高.     

首发精神分裂症患者认知功能损害的研究

目的 探讨首发精神分裂症患者认知功能状况. 方法对60例首发精神分裂症患者进行威斯康星卡片分类测验(WCST),韦氏成人智力量表(WAIS-R)、韦氏记忆量表(WMS)、简明精神病评定量表(BPRS)评定,同时对60名正常健康志愿者进行WCST评定. 结果病例组在WCST完成分类数(t=-4.6,P<0.05)、正确应答数(t=-2.3,P<0.05)、概念化水平百分数(t=-4.9,P<0.05)、错误应答数(t=5.8,P<0.05)以及持续错误数(t=4.6,P<0.05)等评定指标上测试成绩明显差于对照组;患者的WCST正确应答数与操作智商(r=0.5,P<0.05)、总智商(r=0.5,P<0.05)以及总记忆商数(r=0.6,P<0.05)呈正相关;错误应答数与操作智商(r=-0.5,P<0.05)以及总智商呈负相关(r=-0.5,P<0.05);持续错误数与总记忆商数呈负相关(r=-0.5,P<0.05);BPRS迟滞因子分与WCST总用时、错误应答数呈正相关(r=0.4,P<0.05);敌对猜疑因子分与WCST总用时呈正相关(r=0.4,P<0.05). 结论精神分裂症患者部分认知功能受损,与精神症状之间存在相关.     

经颅多普勒观测抑郁症及神经症患者脑血流的研究

目的　了解抑郁症和神经症患者脑动脉血流情况 ,以探讨改进其治疗的问题。方法　用经颅多普勒超声 (TCD)检测 81例抑郁症患者 (A组 )及 76例神经症患者 (B组 )的双侧大脑中 (MCA)、大脑前 (ACA)和大脑后 (PCA)动脉和椎 基底动脉 (VA BA)血流速度 ,以及搏动指数 (PI)、阻力指数 (RI)等脉动性指标。并与 45名正常人 (对照组 )进行对照分析。结果　A ,B两组 3条大脑动脉的血流速度较对照组加快 ,椎 基底动脉血流速度呈A组减慢 ,B组加快。检查结果异常者在A组有 80 19% ,在B组有 89 4% ;而PI和RI值均属正常。结论　抑郁症和神经症患者 3条大脑动脉的血流速度加快 ,提示脑动脉痉挛。对抑郁症患者 ,椎 基底动脉血流速度减慢 ,可导致脑供血减少 ,这些血流动力学上的特征可能为进行改善患者脑血液循环的治疗提供线索     

抑郁症患者的认知功能、事件相关电位P300和MR扩散张量成像研究

目的 联合应用事件相关电位P300和MR扩散张量成像(DTI)研究抑郁症患者的认知功能损害,探讨抑郁症合并认知损害的机制. 方法 选取深圳市第二人民医院心理门诊自2008年5月至2009年9月接收的30例首发抑郁症患者作为抑郁症组,同期与抑郁症患者年龄、教育程度相匹配的健康志愿者30名做为对照组.应用威斯康星卡片分类测验(WCST)、P300检查和DTI扫描分别检测WCST各亚项得分、P3潜伏期和P3波幅、脑不同解剖部位的各向异性(FA)值.并对三者进行相关性分析. 结果 抑郁症组患者WCST各亚项得分、P3潜伏期和P3波幅与对照组相比较差异均有统计学意义(P<0.05);与对照组相比,抑郁症组患者双侧额叶、扣带回前部、扣带回压部、胼胝体膝部和压部FA值下降,差异有统计学意义(P<0.05);抑郁症组患者P3潜伏期与持续性错误数呈正相关关系(r=0.677,P=0.009),P3波幅与持续性错误数、不能维持完整分类数数均呈负相关关系(r=0.765,P=0.001;r=0.654,P=0.012),抑郁症组患者左、右侧额叶白质FA值分别与持续性错误数、不能维持完整分类数呈负相关关系(P<0.05). 结论 神经心理学和事件相关电位P300检查反映了抑郁症患者存在认知功能损害,P3潜伏期和P3波幅可作为认知功能的参考指标,DTI结果 揭示了抑郁症患者存在白质区域神经纤维的异常,这可能是抑郁症合并认知损害的神经病理学基础之一.     

轻度认知损害患者脑血流动力学与认知功能相关分析

目的探讨轻度认知损害(MCI)患者脑血流动力学特点及其与认知功能的相关性。方法采用简易智能状态检查量表(MMSE)和蒙特利尔认知评价量表(MoCA)评价40例轻度认知损害患者及性别和年龄相匹配的40例正常对照者的认知功能,经颅多普勒超声检测双侧大脑中动脉和基底动脉平均血流速度、搏动指数、阻力指数、收缩期峰值流速与舒张末期流速比值。结果 MCI组患者大脑中动脉搏动指数(P=0.023)和阻力指数(P=0.035)高于对照组,而平均血流速度和收缩期峰值流速与舒张末期流速比值以及基底动脉各项血流动力学指标差异均无统计学意义(P0.05)。MCI组患者大脑中动脉搏动指数异常率高于对照组[45%(18/40)对20%(8/40);χ~2=4.615,P=0.032]。Pearson相关分析显示,MCI组大脑中动脉搏动指数与MoCA评分呈负相关(r=-0.382,P=0.036),与MMSE评分无关联性(P0.05);而平均血流速度、阻力指数和收缩期峰值流速与舒张末期流速比值以及基底动脉各项血流动力学指标与MMSE和Mo CA评分均无关联性(P0.05)。根据搏动指数将轻度认知损害患者进一步分组,搏动指数异常亚组MoCA评分低于搏动指数正常亚组[(18.57±3.02)分对(23.41±2.78)分;t=3.914,P=0.015]。结论轻度认知损害患者存在脑血流动力学改变,尤以大脑中动脉搏动指数升高与认知功能障碍的关系最为密切。     

血清S100B蛋白水平与首发抑郁症关系的研究

目的 探讨首发抑郁症患者的血清S100B蛋白水平与抑郁症及其认知功能的关系.方法 纳入符合美国精神障碍诊断与统计手册第四版(DSM-Ⅳ)抑郁症诊断标准的首发抑郁症患者30例和正常对照30名,检测血清S100B蛋白水平,同时应用17项版本汉密尔顿抑郁量表(HAMD)和威斯康星卡片分类测验(WCST)评定患者的病情和认知功能.并进行两组间比较.结果 患者组血清S100B蛋白水平明显高于对照组[(0.109±0.032)μg/L与(0.033±0.014)μg/L,P<0.01].患者组WCST的完成分类数得分低于对照组,差异有统计学意义(P<0.01),而错误应答数、完成第一个分类所需应答数、持续性错误数、持续性应答和持续性错误百分数均高于对照组,差异均有统计学意义(P<0.01).患者组血清S100B蛋白水平与HAMD的总分、阻滞因子分及睡眠障碍因子分呈正相关(r为0.46、0.41和0.37,P均小于0.05),与WCST中的持续性错误数、持续性应答及持续性错误百分数呈正相关(r为0.39、0.37和0.37,P均小于0.05).结论 首发抑郁症患者血清S100B蛋白水平升高,其升高程度与抑郁症的严重程度和认知损害程度正相关.     

女性抑郁症患者额叶灰质密度与认知功能的研究

目的 探讨女性抑郁症患者额叶灰质密度与执行功能及相互间关系.方法 30例女性重性抑郁症患者(首发14例,复发16例)及16名女性正常对照,均行三维核磁共振(3D)扫描和认知功能测试.结果多重两两组间比较显示,首发组较正常组及复发组额叶灰质密度的差异均无统计学意义(P>0.05),但复发组左额上(P=0.03)、右额上(P=0.02)及右额中(P=0.02)的灰质密度较正常组降低.复发组威斯康辛卡片分类测试(WCST)完成分类数、错误应答数和持续性错误数、数字广度及数字符号成绩均差于正常组(F为3.81～11.18,P均小于0.05),其右额下的灰质密度与错误应答数、持续性错误数负相关(r=-0.51,P<0.05;r=-0.53,P<0.05).结论 复发抑郁症患者存在额叶结构和神经认知的改变,结构改变与认知损害存在一定的相关性.     

中重度晚发抑郁症患者的神经认知功能损害分析

目的探讨中重度晚发抑郁症患者神经认知功能损害的特征。方法选取2017年2月至2019年2月我院收治的中重度晚发抑郁症患者50例作为观察组,采用重复性成套神经心理状态测验(RBANS)、词语流畅性测验(VFT)、威斯康星卡片分类测验(WCST)对神经认知功能损害情况予以评定,与同期收治的对照组50名健康体检者进行比较。采用汉密顿抑郁量表(HAMD-17)评估观察组抑郁严重程度,并分析它与认知损害的关系。结果在RBANS测验中,观察组晚期抑郁症患者即刻记忆、延时记忆、视觉广度、注意力、言语能力各维度评分均低于对照组,差异具有统计学意义(P0.05);观察组VFT测验评分经评定低于对照组(P0.05);在WCST测验中,两组完成分类数、完成第一分类所需应答数评分无差异(P0.05),观察组错误应答数、持续性错误百分数、持续性错误数、持续性应答数评分均高于对照组,概念化水平应答百分数评分高于对照组,P0.05);Spearman相关分析发现RBANS测验中的即刻记忆、延时记忆、视觉广度、注意力、言语能力各维度均与HAMD-17评分具正相关(r=0.39,0.42,0.45,0.38,0.40,P0.05);VFT和WCST测验中的持续性应答因子与HAMD-17评分呈负相关(r=-0.43,-0.51,P0.05)。结论中重度晚发抑郁症患者容易出现神经认知功能损害,认知功能损害与抑郁程度密切相关。     

首发与复发抑郁症患者的认知功能特征比较

目的 探讨首发与复发抑郁症患者的认知功能特征及两者间的差异,以及与疾病严重程度的相关性.方法 招募符合DSM-Ⅳ中抑郁症诊断标准的首发抑郁症患者共31例为首发组,复发性抑郁症患者30例为复发组,健康志愿者31名为对照组,对3组进行韦氏数字广度(DS)测验、威斯康星卡片分类测验(WCST)和爱荷华赌博任务(IGT)测验,比较3组被试在各测量指标上的差异,同时用HAMD-24评估患者组的抑郁程度,并分析其与认知功能各指标的相关性.结果 (1)3组患者DS评分的差异有统计学意义(P<0.05),其中复发组低于对照组(P<0.05),首发组与复发组及首发组与对照组差异均无统计学意义(P>0.05).(2)3组患者WCST评分的差异有统计学意义,其中复发组与对照组及复发组与首发组间差异均有统计学意义(P<0.05),首发组和对照组差异无统计学意义(P>0.05).(3)3组患者IGT评分的差异有统计学意义(P<0.05),其中复发组除第二模块外,其余各项指标均高于对照组(P<0.05),复发组的总分、第三模块和第五模块评分均高于首发组(P<0.05).(4)患者组(首发组+复发组)的HAMD总分与DS评分、WCST分类数呈负相关(r=-0.373,P=0.003;r=-0.299,P=0.019),与WCST的错误应答数、持续性错误应答数、非持续错误应答数和IG T的总分、第三模块评分、第五模块评分呈正相关(r=0.265~0.461,P<0.05),与IG T第一模块、第二模块和第四模块无相关性(P>0.05).结论 首发抑郁症患者无明显短时记忆和执行功能损害,在情感决策方面,其倾向于低收益,低风险决策;而复发抑郁症患者的短时记忆、执行功能均有明显损害,且在情感决策上比首发患者对损失更为敏感;抑郁症患者的抑郁程度与认知损害呈正相关.疾病复发和病情加重都会对抑郁症患者的认知损害造成不良影响.     

The relationship between regional cerebral blood flow and the Wisconsin Card Sorting Test in negative schizophrenia

The purpose of this study was to explore the relationship between regional cerebral blood flow (rCBF) and problem-solving thinking in negative schizophrenia. Twenty-one negative schizophrenic patients and 12 normal controls were studied with single photon emission computed tomography (SPECT). Measures of regional cerebral blood flow (rCBF) were taken both at rest and during a prefrontal activation task using Wisconsin Card Sorting Test (WCST). Compared with controls, poor performances on the WCST of total trials category (TT), perseverative errors (PE) and non-perseverative errors (NE) were found in negative schizophrenic (P < 0.05). During WCST activation, patients showed interhemispheric differences in the prefrontal region, but under rest conditions, no such differences manifested. The negative schizophrenia group had a significantly lower rCBF change rate in profrontal lobe during stimulant WCST than those in normal controls (P < 0.05). The negative schizophrenic patient has executive function deficits and lower rCBF perfusion in left profrontal lobes, which suggest that the negative schizophrenic patient has dysfunction of the left profrontal region.     

首次发病与复发抑郁症患者执行功能的对照研究

目的:探讨首发和复发抑郁症患者执行功能损害情况。方法:采用威斯康星卡片分类测验(WCST)、Stroop测验、汉密尔顿抑郁量表(HAMD-17)对100例抑郁症患者进行评定,其中首次发病(首发组)患者41例,复发(复发组)患者59例;同时以50名正常人作为对照组进行测评并分析比较。结果:在WSCT的总错误数、分类完成数、持续性错误数及持续性应答数、以及Stroop色词测验的彩色文字阅读(Stroop-c)时间和彩色文字的色彩阅读(Stroop-cw)正确数上,首发组、复发组与对照组之间差异均有统计学意义(P0.05或P0.01);Stroop-c正确数上首发组和复发组之间差异无统计学意义(P0.05)。结论:无论首发还是复发抑郁症患者均存在明显的执行功能损害,复发者更为显著。     

Neuropsychological performance and regional cerebral blood flow in obsessive-compulsive disorder

Convergent findings from neuropsychological and neuroimaging studies have suggested that neural dysfunction in frontal-subcortical circuits may play a central role in the pathophysiology of obsessive-compulsive disorder (OCD). To further examine the relationship between these two sets of findings we investigated both neuropsychological functions and regional cerebral blood flow (rCBF) in a combined study. Fourteen unmedicated patients fulfilling DSM-IV criteria for OCD and 14 healthy controls matched for age, gender, handedness, and education were assessed on neuropsychological tests that included Trail Making Test (TMT), Rey Complex Figure Test (RCF) (copy and 5-min recall), Verbal Fluency Test (VFT), and Wisconsin Card Sorting Test (WCST). rCBF was studied with 99 mTc-hexamethyl-propyleneamine-oxime (HMPAO) single photon emission computed tomography (SPECT). Patients performed more poorly than controls (P<.05) on RCF (copy), VFT, and WCST (perseverative errors). Spearman's correlations indicated that severity of OCD correlated inversely with performance on the RCF (copy and recall scores) and positively with rCBF in the right thalamus. Positive correlations were observed between nonperseverative errors (WCST) and rCBF in frontal areas and anterior cingulate. Perseverative errors (WCST) correlated negatively with rCBF in the right thalamus. These findings are consistent with most previously published studies and suggest neural dysfunctions in the frontal-subcortical circuits probably more pronounced in the right hemisphere. They also extend the existing research, showing associations between deficits in cortical-subcortical circuitry and performance on neuropsychological tests of controlled attention and visuospatial functions.     

The cerebral correlates of different types of perseveration in the Wisconsin Card Sorting Test

OBJECTIVES: To explore the neural substrates corresponding to the perseverative errors in the Wisconsin Card Sorting Test (WCST). METHODS: The study examined the correlations between the WCST performances and the SPECT measurements of regional cerebral blood flow (rCBF) in subjects with neurodegenerative dementia. Negative non-linear correlations between the rCBF and the two different types of the perseverative errors ("stuck-in-set" and "recurrent" perseverative errors) were calculated on a voxel basis and volume-of-interest basis in the mixed groups of 72 elderly and dementia patients. RESULTS: The stuck-in-set perseverative error was associated with the reduced rCBF in the rostrodorsal prefrontal cortex, whereas the recurrent perseverative error was related to the left parietal activity but not to the prefrontal activity. CONCLUSIONS: These findings augment evidence that the rostrodorsal prefrontal cortex crucially mediates attentional set shifting, and suggest that the stuck-in-set perseverative errors would be a true pathognomonic sign of frontal dysfunction. Moreover, this study shows that the recurrent perseverative errors may not be associated closely with the prefrontal function, suggesting that this error and the stuck-in-set error should be differentially estimated in the WCST.     

Do schizophrenia patients make more perseverative than non-perseverative errors on the Wisconsin Card Sorting Test? A meta-analytic study

The Wisconsin Card Sorting Test (WCST) is widely used to explore executive functions in patients with schizophrenia. Among other findings, a higher number of perseverative errors has been suggested to implicate a deficit in task switching and inhibitory functions in schizophrenia. Many studies of patients with schizophrenia have focused on perseverative errors as the primary performance index in the WCST. However, do schizophrenia patients characteristically make more perseverative than non-perseverative errors compared with healthy controls? We reviewed the literature where schizophrenia patients were engaged in the WCST irrespective of the primary goal of the study. The results showed that while both schizophrenia patients and healthy participants made more perseverative than non-perseverative errors, the contrast between perseverative and non-perseverative errors is higher in schizophrenia patients only at a marginal level of significance. This result suggests that schizophrenia patients do make a comparable number of non-perseverative errors and cautions against simplistic interpretation of poor performance of schizophrenia patients in WCST as entirely resulting from impairment in set-shifting or inhibitory functions.     

奥氮平对精神分裂症患者执行功能障碍的影响

目的:探讨奥氮平对精神分裂症患者执行功能障碍的长期疗效。方法:对29例服用奥氮平维持治疗与24例服用氯丙嗪维持治疗的精神分裂症患者进行2年随访,采用威斯康星卡片分类测验(WCST)评估执行功能。结果:维持治疗2年末奥氮平组和氯丙嗪组的WCST测验中的总测验次数、持续错误数、随机错误数均显著下降(P<0.05或P<0.01),但奥氮平组的总测验次数、持续错误数、随机错误数减分率均显著高于氯丙嗪组(P均<0.01)。结论:奥氮平长期维持治疗能显著改善精神分裂症患者的执行功能。     

抑郁症患者弥散张量成像与认知功能的关系

目的:探讨抑郁症患者全脑白质纤维受损状况及其与认知功能的关系.方法:对 24 例抑郁症患者及 30 名健康对照者进行临床测评、常规磁共振成像(MRI)、弥散张量成像(DTI)及神经心理学检查.结果:抑郁症组在左额中回、左额上回、右额内侧回、左楔前叶、左颞上回、右扣带回等区域各向异性(FA)值较对照组显著下降(P＜0.001).抑郁症组威斯康星卡片分类测验(WCST)的分类数、总错误率明显高于对照组(P＜0.01 或 P＜0.05).两组持续注意操作测试(CPT)差异无显著性;抑郁症组 CPT 与 WCST 部分结果均呈负相关(P均＞0.05).结论:DTI 与 WCST 结果的相互印证反映重性抑郁症患者可能存在白质区域神经功能的异常,DTI 技术有助于发现影响认知改变的脑微细结构和功能的异常.     

Electrophysiological evidence of two different types of error in the Wisconsin Card Sorting Test.

The specificity of the Wisconsin Card Sorting Test (WCST) for assessing frontal lobe pathology remains controversial, although lesion and cerebral blood flow studies continue to suggest a role for the dorsolateral prefrontal cortex in WCST performance. Inconsistencies might derive from the extended use of various WCST scores as equivalent indicators of frontal pathology. In this study, event-related potentials (ERPs) were recorded from 32 normal subjects who committed perseverative and non-perseverative errors. Both types of WCST errors evoked anomalous but distinct ERP patterns over frontal lobe regions. Perseverative errors were also associated with a dysfunctional extrastriate response to stimulation. This evidence suggests that perseverative and non-perseverative errors result from disruptions in two different prefrontal neural networks engaged during card sorting.     

脑白质疏松症患者脑血流动力学研究

目的探讨脑白质疏松症患者脑血流动力学变化。方法采用经颅多普勒超声仪检测207例LA患者(病例组)和200例对照组,记录颅内血管MCA、ACA、PCA、ICA、VA和BA平均血流速度(Vm)。结果病例组颅内各组血管平均血流速度均较对照组减低(P<0.05),病例组轻、中、重度LA患者平均血流速度有逐渐减慢的趋势。结论LA患者脑血流平均速度减慢,随着脑白质疏松程度的加重,脑血流量有逐渐减少的趋势。     

脑静脉窦血栓经颅多普勒超声监测的临床意义

目的探讨经颅多普勒超声(TCD)监测上矢状窦血栓患者颅内压(ICP)的可行性,研究TCD动脉、静脉参数及频谱形态与ICP的关系,以指导临床治疗、评价疗效及判定预后。方法选择18例上矢状窦血栓形成住院患者,取入院第1、7及14天为观察点,动态监测患者的ICP、脑灌注压(CPP)、波动指数(PI)、阻力指数(RI)、大脑中动脉(MCA)和大脑中深静脉(dMCV)平均血流速度(Vm)以及TCD频谱形态,并与对照组相比较,同时进行相关性分析。结果上矢状窦血栓患者各观察点参数与对照组相比均有显著性差异(t=6.32,P<0.05),随着ICP的升高,患者的dMCV平均血流速度、PI及RI呈上升趋势,MCA平均血流速度和CPP呈下降趋势,在第7天达到高峰,持续到两周时略有恢复,但仍维持在较高水平。ICP与P1呈明显正相关(P<0.01,r=0.859);ICP与MCA-Vm呈明显负相关(P<0.01.r=-0.638);ICP与dMCV-Vm无相关性(r=0.07,P>0.05)。随着ICP的升高,动脉频谱表现为舒张期和收缩期血流的不同步下降,静脉频谱呈现血流升高的特征,表现为血流量与血管径的同步增加。结论TCD对临床可疑脑静脉窦血栓形成的患者是一种有效的筛选检测手段,TCD动态监测脑静脉窦血栓患者动脉和静脉血流的同步变化可以评估ICP增高的程度和脑部灌注情况,为临床治疗提供科学依据。