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Author Wick, C.A. ♦ Inan, O.T. ♦ Bhatti, P. ♦ Tridandapani, S.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2015
Language English
Subject Domain (in DDC) Technology ♦ Medicine & health ♦ Engineering & allied operations
Subject Keyword Echocardiography ♦ Electrocardiography ♦ Heart rate ♦ Computed tomography ♦ Acceleration ♦ Magnetic resonance imaging
Abstract The seismocardiogram (SCG) is a measure of chest wall acceleration due to cardiac motion that could potentially supplement the electrocardiogram (ECG) to more reliably predict cardiac quiescence. Accurate prediction is critical for modalities requiring minimal motion during imaging data acquisition, such as cardiac computed tomography (CT) and magnetic resonance imaging (MRI). For seven healthy subjects, SCG and B-mode echocardiography were used to identify quiescent periods on a beat-by-beat basis. Quiescent periods were detected as time intervals when the magnitude of the velocity signals calculated from SCG and echocardiography were less than a specified threshold. The quiescent periods detected from SCG were compared to those detected from B-mode echocardiography. The quiescent periods of the SCG were found to occur before those detected by echocardiography. A linear relationship between the delay from SCG- to echocardiography-detected phases with respect to heart rate was found. This delay could potentially be used to predict cardiac quiescence from SCG-observed quiescence for use with cardiac imaging modalities such as CT and MRI.
Description Author affiliation: Dept. of Radiol. & Imaging Sci., Emory Univ., Atlanta, GA, USA (Wick, C.A.; Tridandapani, S.) || Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA (Inan, O.T.; Bhatti, P.)
ISSN 1557170X
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2015-08-25
Publisher Place Italy
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
e-ISBN 9781424492718
Size (in Bytes) 1.30 MB
Page Count 4
Starting Page 687
Ending Page 690

Source: IEEE Xplore Digital Library