Pulse-wave timing between the cervical carotid and intracranial arteries by means of Wavelet Transform

H. L. Journee, A. B. de Jonge, D. J. Hamoen, A. Smit, A. C. van Bruggen, J. J.A. Mooij



    Wavelet Transform (WT), is applied in a method for timing the blood pulse wave between the internal carotid artery and one of the intracranial arteries. The required accuracy is a few milliseconds. In contrast to the Fourier Transform (FT), WT is an appropriate technique for the detection of non-stationary events. This pilot study, deals with an application of the WT in simultaneous ultrasound Doppler recordings of the internal carotid artery, intracranial arteries and an electrocardiographic ECG-signal. The results showed a beat-to-beat precision of SD = 2-7 ms which is higher than comparable readings from conventional Doppler spectral measurements. The pulse wave transfer time is related to the compliance of the arterial wall and may be sensitive for the early onset of vasospasm in subarachnoid haemorrhage and embolic phenomena.
    Originele taal-2English
    Aantal pagina's2
    StatusPublished - 1996

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