Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
High-frame-rate tissue harmonic imaging enhances anatomic M-mode sections of the left ventricle in short-axis view
Autore:
Palmes, PP; Masuyama, T; Yamamoto, K; Kondo, H; Sakata, Y; Takiuchi, S; Kuzuya, T; Hori, M;
Indirizzi:
Osaka Univ, Grad Sch Med, Dept Internal Med & Therapeut A8, Suita, Osaka 5650871, Japan Osaka Univ Suita Osaka Japan 5650871 peut A8, Suita, Osaka 5650871, Japan Osaka Univ, Grad Sch Med, Dept Geriatr Med, Suita, Osaka 5650871, Japan Osaka Univ Suita Osaka Japan 5650871 atr Med, Suita, Osaka 5650871, Japan
Titolo Testata:
JOURNAL OF THE AMERICAN SOCIETY OF ECHOCARDIOGRAPHY
fascicolo: 8, volume: 13, anno: 2000,
pagine: 738 - 747
SICI:
0894-7317(200008)13:8<738:HTHIEA>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
MYOCARDIAL CONTRAST; WALL-MOTION; ECHOCARDIOGRAPHY; MICROBUBBLES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Masuyama, T Osaka Univ, Grad Sch Med, Dept Internal Med & Therapeut A8, 2-2 Yamadaoka,Suita, Osaka 5650871, Japan Osaka Univ 2-2 Yamadaoka Suita Osaka Japan 5650871 0871, Japan
Citazione:
P.P. Palmes et al., "High-frame-rate tissue harmonic imaging enhances anatomic M-mode sections of the left ventricle in short-axis view", J AM S ECHO, 13(8), 2000, pp. 738-747

Abstract

Background: High-frame-rate echocardiography (HFRE) and tissue harmonic imaging (THI) may improve image quality, thereby enabling anatomic M-mode sections of left ventricular (LV) wall segments to be visualized in various planes in the short-axis view. Objectives: The goals of this study were to compare image quality between HFRE and conventional-frame-rate echocardiography (CFRE) and between fundamental imaging (FI) and THI, and to obtain anatomic M-mode values of basal short-axis LV segments from healthy subjects for use in the evaluation of abnormal segments in patients with myocardial Infarction (MI). Methods and Results: The study included 28 healthy subjects and 15 patients with MI who underwent 2-dimensional echocardiography with an ultrasonographic system equipped with THI and anatomic M-mode. Left ventricular image cineloops at the basal short-axis view that were obtained with 3 combinations of imaging techniques (FI + CFRE, FI + HFRE, and THI + HFRE) were digitized and displayed side-by-side in random order for comparison by blinded readers. M-mode sections were done in 3 planes: anteroseptal-posterior, inferoseptal-lateral, and anterior-inferior basal segments. The THI + HFRE combination showed the best image quality with significant reduction in noise artifacts, resulting in a good signal-to-noise ratio and good tractability of all LV segments by anatomic M-mode. In healthy subjects, significant intersegmental differences existed In the diastolic and systolic thicknesses and In the percent systolic thickening of LV segments. In patients with MI, LV systolic thickening was significantly decreased In abnormal segments. No significant differences were noted in ejection fraction and fractional shortening among the 3 anatomic M-mode planes. Conclusion: High-frame-rate tissue harmonic imaging improved Image quality, thereby allowing reproducible anatomic M-mode measurements in various planes in the short-axis view and providing a convenient objective evaluation of global and regional LV function.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 22:45:08