[Phantom studies of the value of color-coded Doppler sonography in arterial occlusive disease of the lower extremities]. / Phantomuntersuchungen zur Wertigkeit der farbkodierten Doppler-Sonographie bei der arteriellen Verschlusskrankheit der unteren Extremitäten.

ABSTRACT

A new practically orientated phantom for evaluating Doppler Duplex equipment was developed and used to determine the possibilities and limits of color coded Doppler Sonography (Angiodynography) in the diagnosis of arterial occlusive disease of the lower extremity. The problems that may occur in quantifying flow in these arteries are analyzed. The influence of superimposed slices of various soft-tissues on flow quantification, on the spectral waves and on color coded visualisation of the arteries and the possibility to compensate those changes by the use of sonographic contrast agents are discussed.