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S F Horowitz

Publications and source records attributed to S F Horowitz.

58 records · Page 4Linked to original sources
PubMed1981

Noninvasive detection of left ventricular dysfunction with a portable electrocardiographic gated scintillation probe device.

A comparison of left ventricular function data derived from a low cost, portable electrocardiographic gated scintillation probe (nuclear stethoscope) with conventional scintiangiographic data was performed in 68 patients. Ejection fraction correlation (r = 0.86, p less than 0.005) was better in patients with uniform wall motion than in those with regional asynergy (r = 0.68 p less than 0.01). Probe variables reflecting systolic emptying rates, diastolic filling rates and timing intervals, and relative volumes analyzed in combination provided 100 percent sensitivity, specificity, and predictive value in detecting abnormal left ventricular performance. The results suggest that radionuclide angiography with an electrocardiographic gated scintillation probe is a sensitive, rapid and relatively inexpensive portable method of screening for cardiac dysfunction with a yield similar to that from the more costly gamma camera derived scintiangiogram.

Electrocardiography↗
PubMed1980

Complimentary roles of cardiac ultrasound and cardiovascular nuclear medicine.

This review is directed at the clinically useful highlights of ultrasound and radionuclide testing in adults with coronary and valvular heart disease, intracardiac shunts, and hypertrophic and congestive cardiomyopathies. As a clinical toto, the radionuclide procedures are currently more useful than ultrasound examination in evaluating patients with known or suspected coronary artery disease. This includes both primary diagnosis and the more accurate estimation of left ventricular function in the presence of segmental asynergy. In patients with valvular disease, the radionuclide procedures are only indirectly useful, while the ultrasound examination is more often diagnostic. These two techniques are complimentary to one another in their ability to noninvasively evaluate and monitor both chamber size and ventricular function in virtually all patients. Recent research involving noninvasive ventricular imaging during physiologic and pharmacologic intervention holds promise for a more sophisticated noninvasive approach to patient management.

Aortic Dissection↗