TY - GEN
T1 - Automated identification of the heart wall in echocardiographic images throughout a cardiac cycle
AU - Takahashi, Hiroki
AU - Hasegawa, Hideyuki
AU - Kanai, Hiroshi
PY - 2012
Y1 - 2012
N2 - In most of the methods for evaluation of cardiac function based on echocardiography, the heart wall, which is the object to be analyzed, is currently identified manually by an operator. However, this task is very time-consuming and suffers from inter- and intraobserver variability. In the present study, a method was proposed for automated identification of the heart wall region in ultrasonic data throughout an entire cardiac cycle. The heart wall region at the optimal frame of interest in the cardiac phase was identified by applying the expectation-maximization (EM) algorithm to extracted features, and heart wall regions in the following frames were identified by tracking each point, which was classified in the optimal (initial) frame as the heart wall region, using the phased tracking method. The results showed that the proposed method was feasible in automated identification of the heart wall in the longitudinal axis view.
AB - In most of the methods for evaluation of cardiac function based on echocardiography, the heart wall, which is the object to be analyzed, is currently identified manually by an operator. However, this task is very time-consuming and suffers from inter- and intraobserver variability. In the present study, a method was proposed for automated identification of the heart wall region in ultrasonic data throughout an entire cardiac cycle. The heart wall region at the optimal frame of interest in the cardiac phase was identified by applying the expectation-maximization (EM) algorithm to extracted features, and heart wall regions in the following frames were identified by tracking each point, which was classified in the optimal (initial) frame as the heart wall region, using the phased tracking method. The results showed that the proposed method was feasible in automated identification of the heart wall in the longitudinal axis view.
KW - automated identification
KW - echocardiography
KW - EM algorithm
KW - heart wall
KW - optimal cardiac phase
UR - http://www.scopus.com/inward/record.url?scp=84869444599&partnerID=8YFLogxK
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M3 - Conference contribution
AN - SCOPUS:84869444599
SN - 9781467322591
T3 - Proceedings of the SICE Annual Conference
SP - 1171
EP - 1176
BT - 2012 Proceedings of SICE Annual Conference, SICE 2012
PB - Society of Instrument and Control Engineers (SICE)
T2 - 2012 51st Annual Conference on of the Society of Instrument and Control Engineers of Japan, SICE 2012
Y2 - 20 August 2012 through 23 August 2012
ER -