Left Ventricular Volume Measurements in Man by Thermodilution.

Left Ventricular Volume in Man Measured by Thermodilution.

Left ventricular volume in aortic stenosis measured by an angiocardiographic and a thermodilution method.

The action of the left ventricle is impaired in aortic stenosis to a variable degree, and since the extent of myocardial damage will influence the management and prognosis in the individual patient, some way of determining myocardial function is required. For a full assessment of left ventricular performance it is necessary to measure the changes in both volume and pressure throughout the cardi...

Echocardiographic volumetry of the right ventricle.

AIMS The aim of our study was to define the optimal geometric model for two-dimensional volumetry of the right ventricle and its clinical validation. METHODS AND RESULTS It has been shown in previous reports that an ellipsoidal shell model best reflects the complex right ventricular geometry. We investigated 82 patients without tricuspid regurgitation and intracardiac shunt. Measurements of r...

On-line estimation of left ventricular stroke volume using transoesophageal echocardiography and acoustic quantification.

We have examined the usefulness of transoesophageal echocardiography (TOE) and automated endocardium detection for on-line calculation of left ventricular stroke volume. In 12 of 15 patients undergoing abdominal surgery, stroke volume was derived continuously from the multiple discs (MD) and area-length (AL) methods and compared with stroke volume calculated by thermodilution. In 10 patients (8...

Precision of measurements of right and left ventricular volume by cine computed tomography.

Precise determination of left and right ventricular stroke volumes is limited with conventional imaging techniques. We determined whether right and left ventricular stroke volumes could be precisely measured with cine computed tomography (CT). Cine CT enables simultaneous imaging of the right and left ventricles at an 8 mm slice thickness with a maximal scanning rate of 17 frames/sec (50 msec a...