Transmitral Doppler echocardiography is the preferred method of noninvasive diastolic function assessment. Correlations between catheterization-based measures of isovolumic relaxation (IVR) and transmitral, early rapid filling (Doppler E-wave)-derived parameters have been observed, but no model-based, causal explanation has been offered. IVR has also been characterized in terms of its duration ...

Cutaneous microvascular responses to physiological stimuli are currently being investigated as indices of vascular function and to monitor responses to therapy. We attempted to systematically assess various microvascular cutaneous flow indices in response to reactive hyperaemia in control subjects and in patients with coronary artery disease (CAD), and to correlate these with brachial artery fl...

Adiponectin and leptin, two adipose-tissue-derived proteins, have been reported to be elevated in women with established PE (pre-eclampsia). The aim of the present study was to investigate whether alterations in adiponectin and leptin levels predate the development of PE and FGR (fetal growth restriction) in women at increased risk of these complications, as assessed by Doppler examination of t...

A new generation of Ge-based high-resolution gamma-ray spectrometers has allowed accurate measurements to be made of the profiles, widths and energies of the gamma-ray lines emitted in the impulsive phases of solar flares. Here we present measurements in two flares of the energies of the de-excitation lines of 12 C and 16 O at 4.4 and 6.1 MeV respectively by the Ge spectrometer SPI on board INT...

BACKGROUND AND PURPOSE This study was designed to test the hypothesis that paradoxical embolization would be a cause of embolic strokes and transient ischemic attacks in patients with stroke of uncertain etiology in all age groups. METHODS Thirty patients who had stroke of uncertain etiology were studied. They were divided into the following three groups: 13 patients with sudden onset (group ...

We carried out a car-to-infrastructure (C21) and car-to-car (C2C) 4X4 multiple-input multipleoutput (MIMO) radio channel measurement campaign at 5.2 GHz in Lund, Sweden. This paper presents first results on pathloss, power-delay profiles, and delay-Doppler spectra in a C2C highway scenario, where both cars were traveling in opposite directions. A pathloss coefficient of 1.8 yields the best fit ...

Upcoming space-based photometric satellites offer the possibility of detecting continuum flux variability at the micromagnitude (mmag) level. We show that the Doppler flux variability induced by the reflex motion of stars due to planetary companions has an amplitude of , where K is the reflex radial velocity amplitude (3 a)K/c and is the logarithmic slope of the source spectral flux in the obse...

Background: Deep vein thrombosis (DVT) is one of the main causes of hospital mortality which can easily be prevented. Three para clinical methods are used to confirm the diagnosis of DVT, which include D-dimer test, venous color Doppler ultrasonography and venography. This study has focused on the prevalence of confirmed DVT in lower limbs based on venous color Doppler ultrason...