Assessment of diastolic left ventricular filling by echocardiographic automated border detection and comparison with radionuclide ventriculography

Vitarelli, Antonio; Penco, María; Ferro-Luzzi, M; Rosanio, Salvatore; Fedele, Francesco; Dagianti, A

doi:10.1016/s0894-7317(96)90021-8

Cited by 20 publications

(5 citation statements)

References 28 publications

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“…Acoustic quantification has been previously described 61,62 and validated against a variety of techniques. [63][64][65][66] Analysis of the tissue backscatter data identifies the border between blood and tissue and automatically tracks endocardial motion throughout the cardiac cycle. Color kinesis is a further extension of automatic border detection, which defines endocardial motion by color encoding for inward and outward motion and facilitates the on-line assessment of systolic and diastolic ventricular function by creating a color map of regional wall motion.…”

Section: Future Approachesmentioning

confidence: 99%

Diastolic heart failure: standard doppler approach and beyond

Vitarelli

Gheorghiade

1998

The American Journal of Cardiology

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Section: Future Approachesmentioning

confidence: 99%

Diastolic heart failure: standard doppler approach and beyond

Vitarelli

Gheorghiade

1998

The American Journal of Cardiology

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“…Treatment and prognosis however, may be very different. Diastolic dysfunction implies impairment of left ventricular relaxation and/or compliance, with consequent elevation of ventricular filling pressures, left atrial pressures, pulmonary venous and pulmonary capillary pressures, and right heart pressures [22][23][24]. At rest, the heart is able to maintain normal stroke volume and cardiac output, but with exercise, function is compromised [25].…”

Section: Diastolic Versus Systolic Dysfunction Syndromementioning

confidence: 99%

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Vitarelli

Tiukinhoy

Luzio

et al. 2003

Heart Failure Reviews

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Heart failure has emerged as one of the most pressing health care issues in the United States. It is estimated that 4.8 million people have chronic heart failure, and approximately 400,000 new cases are diagnosed each year. Since the incidence of heart failure increases significantly with age, its prevalence is likely to increase as the population grows older. The American Heart Association and American College of Cardiology developed clinical practice heart failure guidelines to assist physicians in the diagnosis and management of patients with heart failure, in the hopes of reducing hospitalizations and mortality. These guidelines emphasize the importance of echocardiography in the management of acute and chronic heart failure. However, the guidelines do not elaborate on all the potential applications of echocardiography for this condition. This review was undertaken to examine in detail, the role of echocardiography in the initial management and long-term follow-up of patients with heart failure.

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“…This technique provides LV area or volume versus time waveforms. The diastolic portion of the LV AQ waveform can be used to assess the diastolic properties of the LV 8–18 . We have found that the reliability of AQ for the assessment of LV diastolic function is improved by signal averaging of the continuous data to generate a single averaged waveform 19 .…”

Section: Assessment Of Diastolic Function Using Acoustic Quantificationmentioning

confidence: 99%

Assessment of Global and Regional Left Ventricular Diastolic Function in Hypertensive Heart Disease Using Automated Border Detection Techniques

et al. 2003

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Acoustic quantification (AQ) and color kinesis (CK) are techniques that involve automated detection and tracking of endocardial borders. These methods are useful for the evaluation of global and regional left ventricular (LV) systolic function and more recently have been applied to evaluating LV diastolic performance. Assessment of diastolic dysfunction in hypertensive heart disease is a relevant clinical issue in which these techniques have proven useful. The diastolic portion of left atrium and LV AQ area waveforms are frequently abnormal in patients with left ventricular hypertrophy (LVH). Left ventricular AQ curves consistently demonstrate reduced rapid filling fraction (RFF) and peak rapid filling rate (PRFR), elevated atrial filling fraction (AFF), peak atrial filling rate (PAFR), and reductions in the ratio PRFR/PAFR. Acoustic quantification complements traditional Doppler echocardiographic evaluation of global diastolic function. Many patients with significant LVH and normal Doppler diastolic parameters can be identified as having diastolic dysfunction with AQ. In addition, CK has allowed the evaluation of regional diastolic performance in hypertensive patients. Regional filling curves obtained from CK have demonstrated that endocardial diastolic motion is commonly delayed and heterogeneous in patients with LVH.

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Assessment of diastolic left ventricular filling by echocardiographic automated border detection and comparison with radionuclide ventriculography

Cited by 20 publications

References 28 publications

Diastolic heart failure: standard doppler approach and beyond

Diastolic heart failure: standard doppler approach and beyond

Untitled

Assessment of Global and Regional Left Ventricular Diastolic Function in Hypertensive Heart Disease Using Automated Border Detection Techniques

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