MATERIALS AND METHODS The patient phonocardiogram is obtained from a small
transducer (piezo-electric) microphone, coupled with gel to the patient's chest, at the location …

A heart-sounds gating device has been designed and tested which identifies, individually,
both the first (S1) and second (S2) heart sound from their timing relationship, providing two …

ATED BLooD PooL scANNING was developed as a method for acquiring moving
radionuclide images of the heart. Evaluation of cardiac function from the radionuclide blood …

Equilibrium gated blood pool imaging of the heart is a common diagnostic procedure for
visualizing cardiac function in human subjects. Recently, this procedure has been modified …

[en] The temporal properties of gated cardiac data are characterized using digital signal
processing techniques. Temporal noise can be reduced significantly by''preprocessing''the …

A new method for physiological synchronization of medical image acquisition using both the
first and second heart sound has been developed. Heart sounds gating (HSG) circuitry has …

Conventional frame-mode acquisition of multigated blood-pool (MUGA) studies is an
imprecise means to study cardiac dynamics in part because the energy and ECG waveform …

In multiple gated cardiac bloodpool studies, information about the motility of the ventricles is
usually assessed by" cine-mode" display of the resulting cycle of frames on a screen. A …

__L RESET_@@J__ Page 1 The production of “gated―cardiac blood pool im ages for
the study of ventricular wall motion was first achieved using the electrocardiographic (ECG) …

In each of 50 resting subjects, two gated blood-pool image sequences were created from the
same LIST mode data set. One sequence was created using a sorting method that spans …