Title :
A new heart-sounds gating device for medical imaging
Author :
Groch, Mark W. ; Domnanovich, James R. ; Erwin, William D.
Author_Institution :
Dept. of Med. Phys., Rush Graduate CoIl., Chicago, IL, USA
fDate :
3/1/1992 12:00:00 AM
Abstract :
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 trigger points through the cardiac cycle for synchronizing medical images. The gate utilizes dynamically varying timing windows to anticipate the occurrence of S1 and S2. It has been initially applied to nuclear imaging of the cardiac bloodpool, but may be applied to any imaging modality requiring cardiac synchronization.
Keywords :
bioacoustics; biomedical equipment; cardiology; patient diagnosis; cardiac bloodpool; cardiac cycle; dynamically varying timing windows; heart-sounds gating device; medical images synchronization; medical imaging; nuclear imaging; timing relationship; trigger points; Biomedical imaging; Circuits; Electrocardiography; Filling; Heart; Logic; Medical diagnostic imaging; Nuclear medicine; Pulse amplifiers; Timing; Electrocardiography; Equipment Design; Gated Blood-Pool Imaging; Heart Rate; Humans; Phonocardiography; Reference Values; Stroke Volume;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
