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 Wysłany: Pon 19:17, 21 Mar 2011 Temat postu: air jordan high heels Doppler ultrasound vascular |
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Doppler ultrasound vascular dementia and its clinical significance
Internal and external research on transcranial Doppler ultrasound literature gradually increased cerebral blood flow, arterial rings and the skull base for understanding the differences in pathological and physiological state of the complex hemodynamic changes has important clinical value. Some scholars believe that in recent years, transcranial Doppler ultrasound is early diagnosis and differential diagnosis of dementia is more sensitive methods. Our study also found. Doppler ultrasound can accurately detect skull base arterial flow rate,[link widoczny dla zalogowanych], flow direction, and spectrum,[link widoczny dla zalogowanych], can be found in VD patients with early cerebral arteriosclerosis and hardening hemodynamic, physiologic changes of vascular pathology. If the situation is detected cerebral artery, brain zm Mi flexible functional status, cerebrovascular stenosis,[link widoczny dla zalogowanych], and change the way their boat off. I showed this resistance, VD patients Pf and Rf values of the arterial health of people significantly increased compared with baby. ¨, while Vm was significantly slower than healthy people, and 2 / 5 of cases there is a heavy chest artery stenosis Xiao situation. Predilection sites of the narrow common traffic medicine 2002 16 2 din in the bilateral middle cerebral artery (MCA) and anterior cerebral artery (ACA). Grel [from the anterior cerebral artery, middle cerebral artery stenosis or when the supply decreases,[link widoczny dla zalogowanych], there is a major function of the cerebral cortex area, the frontal temporal lobe broad-based cerebral blood flow is low, we can see, VD in the widespread brain atherosclerosis in cerebral blood flow on the basis of the decline in real terms in multiple small focal cerebral ischemic changes in specific brain areas or specific cortical ischemic injury and results of nerve conduction deficits. Some scholars had VD patients, the cerebral blood for many years flow measurement, found that reduction in cerebral blood flow VD appeared after 2 years of dementia symptoms. transcranial Doppler ultrasound as a simple determination of cerebral blood flow, cerebral vascular diseases of the dynamic determination of cerebral blood flow. In particular, MCA blood flow will be lower as a sensitive indicator of vascular stenosis or may assist the clinical prediction and early detection VD cases, contribute to the occurrence of secondary diagnosis of VD. dynamic observation of disease progression.
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