Estimation of cardiac output and pulmonary vascular resistance by contrast echocardiography transit time measurement: a prospective pilot study.

Background: Studies with other imaging modalities have demonstrated a relationship between contrast transit and cardiac output (CO) and pulmonary vascular resistance (PVR). We tested the hypothesis that the transit time during contrast echocardiography could accurately estimate both CO and PVR compared to right heart catheterization (RHC).

Methods: 27 patients scheduled for RHC had 2D-echocardiogram immediately prior to RHC.

Estimation of right atrial and ventricular hemodynamics by CT coronary angiography.

Background: Computed tomography coronary angiography (CTCA) provides an accurate noninvasive alternative to the invasive assessment of coronary artery disease. However, a specific limitation of CTCA is inability to assess hemodynamic data.

Objective: We hypothesized that CTCA-derived measurements of contrast within the superior vena cava (SVC) and inferior vena cava (IVC) would correlate to echocardiographic estimations of right atrial and right ventricular pressures.

Diabetes mellitus: an updated overview of medical management and dental implications.

Diabetes mellitus (DM) is a major worldwide public health concern. In the United States, 18.2 million people (approximately 6.