TO THE EDITOR: We read with interest the article by Mizuno et al.(1) and the accompanying
editorial (2). Mizuno et al.(1) used an ambulatory left ventricular (LV) function monitoring …

During Ergometer Exercise Page 1 NUCLEAR CARDIOLOGY Continuous Ambulatory
Radionuclide Monitoring of Left Ventricular Function: Effect of Body Position During …

The accuracy and repeatability of a new ambulatory radionuclide detector (VEST) for left
ventricular systolic (ejection fraction) and diastolic (peak filling rate) measurements were …

The accuracy and reproducibility of a new ambulatory radionuclide detector system (the
VEST) for ejection fraction measurement has not been fully validated. Thirty-six subjects,(19 …

TO ThE EDITOR: The excellent discussion of sources of error in functional determinations
from radionucide ventric ulograms by Wagner et al.(1) neglected an important factor …

TO ThE EDITOR: The excellent discussion of sources of error in functional determinations
from radionucide ventric ulograms by Wagner et al.(1) neglected an important factor …

like garment that the patient wears. Both systems have approximately a 6-cm field of view
with good reso lution to a depth of 10 cm. Unlike the nuclear probe, which is posi tioned …

TO THE EDITOR: We were interested in the conclusions of Schepis et al.(1), who stated that
there is good agreement between left ventricular (LV) ejection fraction (LVEF) and LV …

The reliability of non-invasive determination of cardiac output using first-pass radionuclide
cardiography at rest and during exercise in the upright position was evaluated in 20 patients …

RESULTS Ejection Fraction. Table 1 shows mean values and the range of EF computed by
RNA and VEST. The mean differencesbetweenEF measuredby VEST andby RNA at each …