The sympathoadrenal system is unable to maintain cerebral perfusion pressure in the upright posture.
交感肾上腺系统不能维持直立位的脑灌注压。
Causes of syncope include any process that transiently reduces cerebral perfusion.
晕厥的原因包括任何可以暂时性减少脑灌注的病变。
Additionally, patients may have decreases in cardiac output and cerebral perfusion pressures.
病人也容易有心输出量减少，脑组织灌注压降低。
Objective: To discuss clinical experience with selective antegrade cerebral perfusion in aortic arch replacement operation.
目的：总结选择性顺行脑灌注技术在主动脉全弓替换术中的临床应用体会。
Objective to evaluate the application of 64-multidetector spiral ct cerebral perfusion imaging in patients with hyperacute infarct.
目的探讨64排螺旋CT脑容积灌注成像在超急性期脑梗死的应用价值。
Orthostatic intolerance results when the sympathoadrenal system is unable to maintain cerebral perfusion pressure in the upright posture.
当交感肾上腺系统不能维持直立位的脑灌注压时，就会发生直立不耐受。
Objective To evaluate the reliability of a rat model of acute cerebral ischemia and reperfusion by using cerebral perfusion functional ct.
目的在活体状态下应用CT灌注扫描技术，评价大鼠急性脑缺血再灌注模型的可靠性。
Objective: Explore the320-row ct cerebral perfusion imaging and angiography in chronic cerebral insufficiency in the value of clinical research.
目的：探讨320排ct脑灌注成像与血管成像在慢性脑供血不足中的临床研究的应用价值。
Objective To summarize the perfusion experience in aortic dissection using antegrade selective cerebral perfusion with right axillary artery perfusion.
目的总结右腋动脉插管体外循环、选择性顺行脑灌注在主动脉夹层手术中应用的初步经验。
At present, in addition to effective control of infection and maintenance of cerebral perfusion, there is little effective treatment for encephalopathy.
目前除了有效控制感染，维持脑灌注外缺乏针对脑病有效的治疗手段。
ObjectiveTo observe the effects of retrograde cerebral perfusion of oxygenated red blood cells on the rat brain after deep hypothermic circulation arrest.
目的观察逆行灌注浓缩红细胞对深低温停循环鼠脑的影响。
Conclusions when cerebral perfusion has potential to be affected by ta, a definitive corrective procedure is advised when the patient is relatively stable.
结论：当TA影响到颅内灌注情况时，如果患者情况相对稳定需要进行外科治疗。
Methods Conventional CT, CT cerebral perfusion imaging and TCD were performed in 20 patients with TIA diagnosed by clinic. The results were analyzed in a comparison way.
方法对2 0例临床诊断tia的患者行头颅ct平扫、CT脑灌注成像和TCD检查，对其检查结果进行对比分析。
Although various methods have been used to measure cerebral perfusion including PET, SPECT, xenon CT, and TCD, these require the patients to remain still for a long period.
尽管已经有很多方式用于测量大脑灌注，包括PET、SPECT、氙ct和TCD，但是这些要求患者较长一段时间保持静止。
Results Poor prognosis was associated with severe brain compression, decreased CT value over the edematous brain, increased intra cranial pressure and reduced cerebral perfusion.
结果患儿的预后与脑受压程度、ct值、颅内压和脑灌注压密切相关。
Objective:To evaluate the correlation between the parameters of TCD and cerebral perfusion pressure of acute localized intracranial hypertension model of New Zealand white rabbits.
目的 ：应用新西兰兔急性局限性颅高压模型 ，研究经颅多谱勒频谱参数与脑灌注压的关系。
Objective This study was to determine if retrograde cerebral perfusion (RCP) improves brain protection mainly as a result of its ability to maintain cerebral hypothermia in a pig model.
目的旨在探讨维持脑低温是否作为逆灌脑保护的主要作用机制。
Maintaining the effective volume of cerebral blood flow and cerebral perfusion pressure on the early stage will have a great significance on improving the prognosis of cerebral hemorrhage.
早期维持有效脑血流量及脑灌注压对改善脑出血的预后有重要的意义。
OBJECTIVE to observe the effect of technology of cerebral protection of moderate hypothermia antegrade selective cerebral perfusion (ASCP) or circulatory arrest (CA) with ice-bag under the head.
目的观察胸主动脉瘤手术中采用中度低温末选择性顺行脑灌注(ASCP)或停循环(CA)加头部冰帽的脑保护效果。
Conclusion It's a satisfactory method based on successful cerebral CTA study to take the time to peak in CT perfusion as the delay time.
结论先行CT脑灌注成像，根据测量值预测脑CTA检查延迟时间是保障CTA检查成功的一种较好的方法。
Objective: to study the scanning and postprocessing technique of MR perfusion and its application in evaluating cerebral astrocytoma.
目的：研究MR灌注成像的扫描技术、后处理技术及其评价脑星形细胞瘤的价值。
Ct perfusion images can reflect the presence and degree of cerebral ischemia. It is a useful tool to evaluate acute cerebral ischemia.
CT灌注图像能正确反应出脑缺血的存在和严重程度，可以作为评价急性脑梗塞的方法。
Perfusion images may show elevated regional cerebral blood volume beyond the area of enhancement, suggestive of tumor infiltration.
灌注影像显示脑血容量增高区域超过强化的区域，提示了肿瘤的浸润。
Objective: To study the brain of 64-slice spiral ct perfusion combined head and neck ct angiography in the middle cerebral artery (MCA) stenosis or occlusion in the clinical clinical applications.
目的：研究探讨64排螺旋CT脑灌注联合头颈部CT血管成像在大脑中动脉(MCA)狭窄或闭塞中的临床临床应用价值。
Perfusion - and diffusion-weighted MRI has potential application values in hyperacute cerebral infarction.
灌注和弥散加权磁共振成像在脑梗死超早期有着潜在的应用价值。
Objective:To evaluate the diagnostic value of CT perfusion imaging (CTPI) in cerebral ischemic diseases.
目的：探讨CT灌注成像（CTPI）对脑缺血性疾病的诊断价值。
BACKGROUND: Direct observation of infarcted microvascular perfusion after cerebral infarction is the most immediate evidence in evaluation of therapeutic effects.
背景：脑梗死发生后直接观察梗死区微血管灌注状态是评价治疗效果的最直接证据。
Objective to study the clinical application of multi-slice spiral computed tomography (MSCT) perfusion imaging in acute cerebral ischemia.
目的探讨多层螺旋CT (MSCT)灌注成像在急性脑缺血中的临床应用价值。
Purpose To evaluate the diagnosis value of multi-slice spiral CT perfusion imaging in the diagnosis of ischemia cerebral diseases.
目的：评价多层螺旋CT灌注成像在脑缺血性疾病的诊断价值。
Purpose To evaluate the diagnosis value of multi-slice spiral CT perfusion imaging in the diagnosis of ischemia cerebral diseases.
目的：评价多层螺旋CT灌注成像在脑缺血性疾病的诊断价值。
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