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Titolo:
New method of on-line quantification of regional wall motion with automated segmental motion analysis
Autore:
Fujino, T; Ono, S; Murata, K; Tanaka, N; Tone, T; Yamamura, T; Tomochika, Y; Kimura, K; Ueda, K; Liu, JY; Wada, Y; Murashita, M; Kondo, Y; Matsuzaki, M;
Indirizzi:
Yamaguchi Univ, Sch Med, Dept Internal Med 2, Ube, Yamaguchi 7558505, Japan Yamaguchi Univ Ube Yamaguchi Japan 7558505 Ube, Yamaguchi 7558505, Japan
Titolo Testata:
JOURNAL OF THE AMERICAN SOCIETY OF ECHOCARDIOGRAPHY
fascicolo: 9, volume: 14, anno: 2001,
pagine: 892 - 901
SICI:
0894-7317(200109)14:9<892:NMOOQO>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
TWO-DIMENSIONAL ECHOCARDIOGRAPHY; COLOR KINESIS IMAGES; MYOCARDIAL-INFARCTION; QUANTITATIVE-ANALYSIS; VENTRICULAR-FUNCTION; BORDER DETECTION; ONLINE; CONTRACTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Matsuzaki, M Yamaguchi Univ, Sch Med, Dept Internal Med 2, 1-1-1 Minami Kogushi, Ube, Yamaguchi 7558505, Japan Yamaguchi Univ 1-1-1 Minami Kogushi Ube Yamaguchi Japan 7558505
Citazione:
T. Fujino et al., "New method of on-line quantification of regional wall motion with automated segmental motion analysis", J AM S ECHO, 14(9), 2001, pp. 892-901

Abstract

We have recently developed an automated segmental motion analysis (A-SMA) system, based on an automatic "blood-tissue interface" detection technique,to provide real-time and on-fine objective echocardiographic segmental waft motion analysis. To assess the feasibility of A-SMA in detecting regionalleft ventricular (LV) wall motion abnormalities, we performed 2-dimensional echocardiography with A-SMA in 13 healthy subjects, 22 patients with prior myocardial infarction (MI), and 9 with dilated cardiomyopathy (DCM). Midpapillary parasternal short-axis and apical 2- and 4-chamber views were obtained to clearly trace the blood-tissue interface. The LV cavity was then divided into 6 wedge-shaped segments by A-SMA. The area of each segment was calculated automatically throughout a cardiac cycle, and the area changes ofeach segment were displayed as bar graphs or time-area curves. The systolic fractional area change (FAC), peak ejection rate (PER), and filling rate (PFR) were also calculated with the use of A-SMA. In the control group, a uniform FAC was observed in real time among 6 segments in the short-axi view(60% +/- 10% to 78% +/- 9%), or among 5 segments in either the 2-chamber (59% +/- 12% to 75% +/- 16%) or 4-chamber view (58% +/- 13% to 72% +/- 12%). The variations of FAC, PER, and PFR were obviously decreased in infarct-related regions in the MI group and were globally decreased in the DCM group. We conclude that A-SMA is an objective and time-saving method for assessing regional wall motion abnormalities in real time. This method is a reliable new tool that provides on-line quantification of regional wall motion.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 12:43:29