Donald Heyda Phones & Addresses
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378 Davis Rd, Bedford, MA 01730 (781) 275-7923
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Nantucket, MA
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Portsmouth, NH
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378 Davis Rd, Bedford, MA 01730
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Heyda
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378 Davis Rd, Bedford, MA 01730
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Us Patents
Composing A Reference Heart Beat Signal
View pageUS Patent:
43668208, Jan 4, 1983
Filed:
Jun 23, 1980
Appl. No.:
6/162301
Inventors:
Donald W. Heyda - Cambridge MA
Richard P. Corley - Sudbury MA
Rosalind Sinclair - Nashua NH
Richard P. Corley - Sudbury MA
Rosalind Sinclair - Nashua NH
Assignee:
Baird Corporation - Bedford MA
International Classification:
A61B 500
US Classification:
128659
Abstract:
A method and apparatus for composing a reference heart beat by synchonously summing heart beat signals detected by a high resolution radioactivity distribution detection system for non-invasive measurement of cardiac performance. A plurality of sensing devices form an array for detecting radioactive events emitted from a heart under study. A processor sums heart beat images of a continuous series of detected events and generates a reference heart beat by synchronizing the regrouping of the beat images as a function of the peaks at volumetric end diastole and the image troughs at volumetric end systole. The reference heart beat represents a statistical standard heart beat for the heart under study and defines a base signal for quantative measurements and qualitative analysis of the condition of the subject heart.