Tomographic left ventricular volume determination in the presence of aneurysm by three-dimensional echocardiographic imaging. I: Asymmetric model hearts

Buck, Thomas; Schön, Frank; Baumgart, Dietrich; Leischik, Roman; Schappert, Thomas; Kupferwasser, Iri; Meyer, Jürgen; Görge, Günter; Haude, Michael; Erbel, Raimund

doi:10.1016/s0894-7317(96)90120-0

Cited by 35 publications

(16 citation statements)

References 41 publications

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“…The superiority of three-dimensional images compared to the two-dimensional approach has been reported in other studies [1,2,3,4, 6, 7] compared with the two-dimensional approach [2, 3, 6], including one with deformed LV [1]. Most of the former studies used transoesophageal data acquisition for LV volumetry [11, 12], but, looking ahead, the future of the method will be associated with the transthoracic approach.…”

Section: Discussionsupporting

confidence: 54%

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Three-Dimensional Echocardiography: Rational Mode of Component Images for Left Ventricular Volume Quantitation

Nixdorff

Feddersen²,

Voigt³

et al. 2005

Cardiology

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Three-dimensional echocardiography (3DE) improves the accuracy of left ventricle (LV) volumetry compared with the two-dimensional echocardiography (2DE) approach because geometric assumptions in the algorithms may be eliminated. The relationship between accuracy of mode (short- versus long-axis planimetry) and the number of component images versus time required for analysis remains to be determined. Sixteen latex models simulating heterogeneously distorted (aneurysmatic) human LVs (56–303 ml; mean 182 ± 82 ml) were scanned from an ‘apical’ position (simultaneous 2DE and 3DE). For 3DE volumetry, the slice thickness was varied for the short (C-scan) and long axes (B-scan) in 5-mm steps between 1 and 25 mm. The mean differences (true-echocardiographic volumes) were 16.5 ± 44.3 ml in the 2DE approach (95% confidence intervals –27.8 to +60.8) and 0.6 ± 4.0 ml (short axis; 95% confidence intervals –3.4 to +4.6) as well as 2.1 ± 9.9 ml (long axis; 95% confidence intervals –7.8 to +12.0) in the 3DE approach (in both cases, the slice thickness was 1 mm). Above a slice thickness of 15 mm, the 95% confidence intervals increased steeply; in the short versus long axes, these were –6.5 to +8.5 versus –7.0 to +10.6 at 15 mm and –10.1 to +15.7 versus –11.3 to +10.9 at 20 mm. The intra-observer variance differed significantly (p < 0.001) only above 15 mm (short axis). Time required for analysis derived by measuring short-axis slice thicknesses of 1, 15, and 25 mm was 58 ± 16, 7 ± 2 and 3 ± 1 min, respectively. The most rational component image analysis for 3DE volumetry in the in vitro model uses short-axis slices with a thickness of 15 mm.

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Section: Discussionsupporting

confidence: 54%

“…Several studies have shown the improved accuracy of LV volumetry by three-dimensional echocardiography (3DE) [1,2,3,4,5,6,7] compared to the two-dimensional echocardiography (2DE) approach [2, 3, 6]. …”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Echocardiography: Rational Mode of Component Images for Left Ventricular Volume Quantitation

Nixdorff

Feddersen²,

Voigt³

et al. 2005

Cardiology

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“…However, analysis of 3D echocardiographic data described in previous studies was largely 2D, because it relied on model-based calculations of LV volume by interpolating endocardial contours detected on 2D planes extracted from the 3D data sets. [7][8][9]14 Although some previous investigators described this methodology as accurate, 26 others found it to be limited in the presence of asymmetrical ventricles or wall motion abnormalities. 27 Moreover, the clinical assessment of regional LV function remains completely subjective, because even for 2D images, there is no widely accepted technique for quantitative analysis of regional wall motion.…”

Section: Discussionmentioning

confidence: 99%

Volumetric Quantification of Global and Regional Left Ventricular Function From Real-Time Three-Dimensional Echocardiographic Images

et al. 2005

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Background-Real-time 3D echocardiographic (RT3DE) data sets contain dynamic volumetric information on cardiac function. However, quantification of left ventricular (LV) function from 3D echocardiographic data is performed on cut-planes extracted from the 3D data sets and thus does not fully exploit the volumetric information. Accordingly, we developed a volumetric analysis technique aimed at quantification of global and regional LV function. Methods and Results-RT3DE images obtained in 30 patients (Philips 7500) were analyzed by use of custom software based on the level-set approach for semiautomated detection of LV endocardial surface throughout the cardiac cycle, from which global and regional LV volume (LVV)-time and wall motion (WM)-time curves were obtained. The study design included 3 protocols. In protocol 1, time curves obtained in 16 patients were compared point-by-point with MRI data (linear regression and Bland-Altman analyses). Global LVV correlated highly with MRI (rϭ0.98; yϭ0.99xϩ2.3) with minimal bias (1.4 mL) and narrow limits of agreement (Ϯ20 mL). WM correlated highly only in basal and midventricular segments (rϭ0.88; yϭ0.85xϩ0.7).In protocol 2, we tested the ability of this technique to differentiate populations with known differences in LV function by studying 9 patients with dilated cardiomyopathy and 9 normal subjects. All calculated indices of global and regional systolic and diastolic LV function were significantly different between the groups. In protocol 3, we tested the feasibility of automated detection of regional WM abnormalities in 11 patients. In each segment, abnormality was detected when regional shortening fraction was below a threshold obtained in normal subjects. The automated detection agreed with expert interpretation of 2D WM in 86% of segments. Conclusions-Volumetric

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“…The extent of myocardial ischemia during myocardial infarction should be evaluated by 2DE according to the ASE criteria (28). Additionally, techniques such as PW-Doppler, TDI, strain and 3DE (11) extend the possibilities and supply additional functional or geometrical (11) information, but in the acute phase of infarction, analyses of wall abnormalities or wall structure and valve function via color Doppler provide sufficient clinical information and enables the identification of addition complications of extended infarction, such as inter-ventricular shunts caused by infarction (Figures 4,5), papillary muscle dysfunction and perimyocardial effusion. One of the simplest types of information is that provided by acute measurements of wall motion scores or ejection fractions and analyses of the extent of hypokinesia or akinesia ( Figure 1) in terms of the myocardial wall segments.…”

Section: Amimentioning

confidence: 99%

“…The first milestones were the detection of abnormal wall motion during angina pectoris (4) and acute myocardial infarction (AMI) (5). The introductions of two-dimensional echocardiography (2DE), pulsed wave (PW)/continuous wave (CW) Doppler techniques, Echo-Contrast (6-8), Transesophageal echocardiography (TEE) (9), tissue Doppler imaging (TDI) (10), three-dimensional echocardiography (3DE) (11), and strain echocardiography (strain) (SE) (12) have provided numerous tools with which to manage all conditions related to coronary heart disease (CHD). Additional analyses of diastolic function (13) and myocardial architecture using all possible sonographic technologies (14-16) allow for full functional evaluations of cardiac function.…”

Section: Introductionmentioning

confidence: 99%

Echocardiographic assessment of myocardial ischemia

Leischik¹,

Dworrak²,

Sanchís-Gomar³

et al. 2016

Ann. Transl. Med.

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Over the last 60 years, echocardiography has emerged as a dominant and indispensable technique for the detection and assessment of coronary heart disease (CHD). In this review, we will describe and discuss this powerful tool of cardiology, especially in the hands of an experienced user, with a focus on myocardial ischemia.Technical development is still on-going, and various new ultrasound techniques have been established in the field of echocardiography in the last several years, including tissue Doppler imaging (TDI), contrast echocardiography, three-dimensional echocardiography (3DE), and speckle tracking echocardiography (i.e., strain/strain rateechocardiography). High-end equipment with harmonic imaging, high frame rates and the opportunity to adjust mechanical indices has improved imaging quality. Like all new techniques, these techniques must first be subjected to comprehensive scientific assessment, and appropriate training that accounts for physical and physiological limits should be provided. These limits will constantly be redefined as echocardiographic techniques continue to change, which will present new challenges for the further development of ultrasound technology.

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Tomographic left ventricular volume determination in the presence of aneurysm by three-dimensional echocardiographic imaging. I: Asymmetric model hearts

Cited by 35 publications

References 41 publications

Three-Dimensional Echocardiography: Rational Mode of Component Images for Left Ventricular Volume Quantitation

Three-Dimensional Echocardiography: Rational Mode of Component Images for Left Ventricular Volume Quantitation

Volumetric Quantification of Global and Regional Left Ventricular Function From Real-Time Three-Dimensional Echocardiographic Images

Echocardiographic assessment of myocardial ischemia

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