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...
Because of missing collateralisation beyond the Circle of Willis, occlusions of cerebral arteries result in hypoperfusion or according to size and localisation of the embolus in stroke. Emboli detection is an adequate technical method to narrow the probability of embolic aetiology of stroke....
Monitoring of sufficient brain perfusion is an essential part of anesthesiology and intensive care medicine. Transcranial Doppler Sonography is a non-invasive method, which provides real-time information about the cerebral haemodynamical situation, for instance...
Patent Foramen Ovale (PFO) causing Right to Left Shunt (RLS) can be detected by TCD PFO-Test. RLS are direct connections between right (pulmonary) and left (systemic) circulation. By this connection blood can cross to the other circulation without passing pulmonary capillaries....