OBJECTIVES To examine the cost-effectiveness of Doppler ultrasonography in high-risk pregnancies. METHODS An analysis was made of the cost-effectiveness of Doppler ultrasonography in high-risk pregnancies in relation to different organizational models. National costs of Doppler ultrasonography for singleton pregnancies with intrauterine growth retardation were estimated for three models. The ...

OBJECTIVE: To evaluate the agreement between Doppler ultrasonography and magnetic resonance imaging as well as the interobserver reproducibility of both methods in the measurement of portal blood flow in schistosomal patients. MATERIALS AND METHODS: A cross-sectional, observational, self-paired study evaluated 21 patients with schistosomiasis mansoni submitted to measurement of portal blood flo...

OBJECTIVE to estimate and visualise the efficacy of treatment with etanercept (Enbrel) in patients with rheumatoid arthritis (RA) using colour Doppler and spectral Doppler ultrasonography to determine the possible changes in synovial perfusion during a one year observation period. METHODS Eleven patients from the European multicentre trial of the efficacy and safety of etanercept were include...

PURPOSE To determine the importance of technical settings at power Doppler ultrasonography (US) for the evaluation of stenoses. MATERIALS AND METHODS A computer-controlled phantom was used to induce a reproducible flow across a calibrated 71% stenosis in an 8.4-mm-diameter tube. Two transducers, 2-4 and 5-10 MHz, working at depths of 3.0 and 11.5 cm, respectively, with different beam angles (...