ASSES S MENT OF DIASTOLIC FUNCTION BY COMBINED TRNSMITRAL AND PULMO N ARY VENOUS FLOW VELOCITY CURVES

On $n$-ary Hypergroups and Fuzzy $n$-ary Homomorphism

Venous flow velocity, venous volume and arterial blood flow.

The relationship of arterial blood flow and venous volume to venous flow velocity was studied in normal subjects. The effects of current modes of treatment in venous thrombosis and of a vasodilator drug on venous flow velocity were also investigated. Total calf flow and venous volume were measured by venous occlusion plethysmography while venous flow axial velocity was determined by the transit...

Quantitation of mitral regurgitation using the systolic/diastolic pulmonary venous flow velocity ratio.

OBJECTIVES The purpose of this study was to test the hypothesis that pulmonary venous flow velocity ratios during systole and diastole in patients with mitral regurgitation (MR) correctly predict the quantitative degree of MR. BACKGROUND Pulmonary venous flow velocity measurements have thus far been used only for the qualitative assessment of MR. Recent studies have evaluated this method usin...

End-diastolic Umbilical Artery Doppler Flow Velocity

Doppler velocity measurement has been extensively applied in prenatal diagnosis for more than two decades. Blood flow in numerous vessels has been investigated to predict fetal condition, especially in the umbilical artery [1–7]. Histopathologic studies suggest that abnormal umbilical artery Doppler velocimetry is correlated with a pathologic lesion of the placenta characterized by obliteration...

Structural Properties of s - Cepheid Velocity Curves ⋆

The light curves of the first overtone Pop. I Cepheids (s-Cepheids) show a discontinuity in their φ 21 vs. P diagram, near P = 3.2 day. This feature, commonly attributed to the 2:1 resonance between the first and the fourth overtones (ω 4 ≈ 2ω 1), is not reproduced by the hydrodynamical models. With the goal of reexamining the resonance hypothesis, we have obtained new CORAVEL radial velocity c...