4D reconstruction of the left ventricle during a single heart beat from ultrasound imaging

Bonciu, C; Weber, Rodolphe; Léger, Christophe

doi:10.1016/s0262-8856(00)00088-3

Cited by 17 publications

(13 citation statements)

References 22 publications

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“…The first ones were done with recordings during four consecutive cardiac cycles, for a heart driven by a pacemaker device [35]. More recently, the improvement of our 4D rendering method allowed us to reduce the number of necessary cardiac cycles to only one [37]. The results presented here relate to experiments with recordings during two consecutive cardiac cycles on a healthy human subject; more details can be found in [36].…”

Section: Preliminary In Vivo Resultsmentioning

confidence: 99%

“…In each normalized time interval ∆τ , an interpolation technique, based on the 2-D discrete Fourier transform, is applied to obtain an instantaneous 3D model. The algorithm is based on the iterative spectral filtering technique called 3D harmonic model [35], [37], [44], [49]. The spatio-temporal reconstruction method led to the LV model in Fig.…”

Section: B 3d/4d LV Renderingmentioning

confidence: 99%

“…If this hypothesis is not verified, a new acquisition is undertaken. Moreover, recent work has demonstrated the possibility of limiting the data acquisition to only one cardiac cycle [37], thanks to the improvement of our 3D rendering method.…”

Section: Introductionmentioning

confidence: 99%

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Volumetric ultrasound system for left ventricle motion imaging

Canals

Lamarque

Chatain³

1999

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

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An external ultrasound oscillating probe has been developed for the purpose of visualizing dynamically the left cardiac ventricle three-dimensional (3D) movements and deformations. The fundamental principle of this probe is to maintain in continuous oscillation a classical one-dimensional (1D) transducer array around its axis at a maximum oscillation rate of 3 degrees per millisecond. A global medical system, including hardware elements and a software package, has been designed for this application. A motorization set and electronic boards enable this new oscillating probe to be used with any recent echograph equipped with a cardiac module and an external triggering cineloop. Moreover, in order to obtain 3D/4D left ventricle movements from a set of 2D recorded images, a rendering method based on the 2D discrete Fourier transform is applied. Promising preliminary results have been obtained on some patients, and a clinical study on a great number of subjects (both healthy and heart complaint people) was carried out.

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Section: Preliminary In Vivo Resultsmentioning

confidence: 99%

Section: B 3d/4d LV Renderingmentioning

confidence: 99%

See 1 more Smart Citation

Volumetric ultrasound system for left ventricle motion imaging

Canals

Lamarque

Chatain³

1999

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

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“…The second experiment deals with real data of the Left Ventricle (LV) of a human heart acquired with a new multidimensional imaging ultrasound system [25]. In this example, we consider a set of 1024 surface points of real data of the human LV, provided from two different positions (see Figs.…”

Section: Examplementioning

confidence: 99%

Construction of spherical spline quasi-interpolants based on blossoming

Ibáñez

Lamnii²,

Mraoui³

et al. 2010

Journal of Computational and Applied Mathematics

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a b s t r a c tA general theory of quasi-interpolants based on quadratic spherical Powell-Sabin splines on spherical triangulations of a sphere-like surface S is developed by using polar forms.As application, various families of discrete and differential quasi-interpolants reproducing quadratic spherical Bézier-Bernstein polynomials or the whole space of the spherical Powell-Sabin quadratic splines of class C 1 are presented.

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“…The acquired data is then processed off-line to render volume reconstruction of 2-D B-scan images. More recently, dedicated 3-D probes designed as a rectangular matrix of transducer array elements have enabled 'real-time' 3-D echocardiography [7]. The real-time approach offers the benefit of seamless acquisition and processing steps, allowing instant visualisation.…”

mentioning

confidence: 99%

Editorial comment

Chung

Henein

2005

Int J Cardiovasc Imaging

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In response to the article by Debrun et al. (Int. J. Cardiovascular Imaging 21,[239][240][241][242][243][244][245][246][247] In managing patients with left ventricular (LV) dysfunction, cardiologists have long sought quantification of LV function by various measures, including ejection fraction (EF), myocardial perfusion, wall motion score index, LV diastolic filling patterns, long axis function and even NYHA class. Furthermore in patients with coronary artery disease (CAD), it has been established that LV volume and LV EF are prognostic predictors of survival [1][2][3][4].Ejection fraction served for several decades as the sole measure of systolic function, attracting different imaging techniques to find ways of obtaining reproducible values. Despite its useful value in quantifying ventricular function, EF has its known limitations, particularly in patients with segmental ventricular dysfunction and in those with asynchronous wall movement. In these patients, reproducible values of EF are often scarcely obtainable even by the same technique, let alone comparative values between different imaging modalities that have a broad range of variability.The anatomical basis for such variability lies in the shape of the LV cavity and its changes during dynamic systole. The left ventricle is a threedimensional structure, and during systole significant shape changes occur even in normal subjects. In patients with CAD in particular, a broad scale of changes in LV segmental and global function occur during different phases of the cardiac cycle. With this in mind, the ideal way of standardising LV function would be a four-dimensional (4-D) approach, where timing is also considered as a fundamental variable.In this issue of the International Journal of Cardiovascular Imaging, Debrun et al. present an in vitro study comparing gated single photon emission computed tomography (SPECT) and 4-D echocardiographic measurement of left ventricular volumes and EF in a cardiac phantom. This study evaluates the measurement fidelity of an established nuclear medicine technique and an emerging real-time 3-D echocardiographic technique against known volumes in a gated dynamic cardiac phantom and torso model. LV end-systolic volumes (ESV) from 50-130 ml and LV end-diatolic volumes (EDV) from 120-200 ml were measured with a constant stroke volume (SV) of 70 ml, representing EF from 35% (LV dysfunction) to 58% (normal).In contrast to previous work in the literature comparing SPECT and 2-D echo, LV volumes were calculated in three dimensions for both the nuclear and ultrasound modalities in this study. Vourvouri and Roelandt [5] reported on the agreement between gated SPECT and 2-D echocardiography for measuring LV volumes. In vivo measurements using both modalities showed excellent correlation for LV volumes and good agreement for calculated EF in patients with chronic ischaemic LV dysfunction. Debrun and colleagues empirically validate the next logical advancement in cardiac imaging -real-time 3-D echocardiography against gated SPECT.There have...

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4D reconstruction of the left ventricle during a single heart beat from ultrasound imaging

Cited by 17 publications

References 22 publications

Volumetric ultrasound system for left ventricle motion imaging

Volumetric ultrasound system for left ventricle motion imaging

Construction of spherical spline quasi-interpolants based on blossoming

Editorial comment

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