Since intraoperative strokes are predominantly caused by embolism instead of inefficient hemodynamic circulation, the occurrence of embolic signals may lead to a change of surgical treatment and thereby help to reduce the risk of intraoperative stroke. Emboli detection becomes particularly relevant in vascular surgery, when...
TCD provides real-time information about the blood flow in addition to the hemodynamic changes as a result of various physiological as well as pathological states. TCD can predict stroke by determination of high blood flow velocities, which allows indirect conclusions on stenosis or occlusion....
TCD has its importance in diagnosis, treatment decisionmaking, and prognosis of Sickle Cell Disease. By TCD measurement of elevated blood flow velocities (BFV), children, who may benefit from blood transfusions, can be identified even months before stroke. TCD guided, intensified therapy reduces stroke risk....
Microdoppler techniques keep their special value in the subject of neurosurgery. Due to irreversible damage of neuronal tissue in case of ischaemic hypoperfusion during spinal or brain surgery it is highly important to protect feeding and draining vessels....
Brain Death diagnosis has become an important topic of ethical discussion about organ donation. TCD for instrumental diagnosis of brain death is considered as an additional matter of safety. Brain death is not confirmed as long as TCD or EEG confirm brain death instrumentally...