NONINVASIVE EVALUATION IN CEREBROVASCULAR STUDY - POSSIBILITY AND PROSPECTS

The authors outline the importance of the global investigation of the cerebrovascular system in order to obtain more exact information about the ethiopathology of vascular ischaemic brain disease. Each patient is always submitted to the following investigations: Duplex scanner of epiaortic vessels, Transcranial doppler and echocardiographic screeni ng in our vascular laboratory; morover, when haemodynamic carotid arte ry stenosis is present, duplex scanner of femoro-popliteal vessels and microcirculatory study of the brain with Zenon133, via inhalation, we re undertaken. In the second part of the study the authors refer a rel ationship between the instrumental doppler signal and the real risk ev idenced by techniques which can provide information on the composition , structure and stability of the plaques and correlate this informatio n with the data from the doppler analysis. Instrumental techniques suc h as thermal analysis, atomic absorption spectroscopy, ICP analysis an d IR spectroscopy were used to carry out this study.