Quantitative assessment of aortic stenosis by three-dimensional echocardiography

Menzel, Thomas; Mohr-Kahaly, Susanne; Kölsch, B.; Kupferwasser, Iri; Kopp, Helmut; Spiecker, Martin; Wagner, Ştefan; Meinert, Rolf; Pagnia, Frank; Meyer, Jürgen

doi:10.1016/s0894-7317(97)70057-9

Cited by 47 publications

(14 citation statements)

References 5 publications

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“…However, the acquisition remained cumbersome and reconstruction was a time-consuming, off-line process. Nevertheless, these rotational probes have yielded accurate results for mass and volume calculations of cardiac chambers [3], [4] and described well a variety of cardiac lesions [5]. However, because of inherent difficulties these systems have not become clinically applicable.…”

mentioning

confidence: 99%

LV volume quantification via spatiotemporal analysis of real-time 3-D echocardiography

Angelini

Laine

Takuma

et al. 2001

IEEE Trans. Med. Imaging

110

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mentioning

confidence: 99%

LV volume quantification via spatiotemporal analysis of real-time 3-D echocardiography

Angelini

Laine

Takuma

et al. 2001

IEEE Trans. Med. Imaging

110

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“…Rotational acquisition technique offers advantages during a multiplanar transesophageal study due to the excellent quality of the obtained image when the transesophageal approach is used [5][6][7][8][9] . When the region of interest is centralized, the transducer is held in a stable position and then the motor makes it spin around the axis.…”

Section: Discussionmentioning

confidence: 99%

Dynamic three-dimensional reconstruction of the heart by transesophageal echocardiography

Veiga¹,

Lopes²,

Pinto³

1999

Arq. Bras. Cardiol.

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Objective -To evaluate echocardiography accuracy in performing and obtaining images for dynamical threedimensional (3D) reconstruction. Methods -Three-dimensional (3D) image reconstruction was obtained in 20 consecutive patients who underwent transesophageal echocardiography. A multiplanar 5 MHz transducer was used for 3D reconstruction. ResultsThree-dimensional (3D) reconstruction of the heart through conventional 2DE imaging is a new technology with potential clinical applications.Reconstruction through transthoracic echocardiography is often limited in some patients by small number of acoustic windows and poor imaging quality. In addition, the device coupled to transthoracic transducer is too large and heavy to allow for proper handling during the exam, resulting in a great number of artifacts, which interfere with the analysis and with making the correct diagnosis.When transesophageal echocardiography (TEE) was first used clinically in 1980, a new window to the heart appeared. In 1986, Martin et al 1-3 used a micromanipulator for the TEE transducer for the 3D echocardiogram. Due to the high quality of images obtained by the transesophageal access, 3D reconstruction of the heart, using transesophageal imaging emerged as a promising technique that offers a stable site from which to obtain multiple images from several sections.Thus, the purpose of this study was to evaluate the feasibility of performing and obtaining images of good diagnostic quality using TEE for 3D reconstruction. MethodsImages for 3D reconstruction were obtained during routine transesophageal studies in 20 outpatients in sinus rhythm referred to our echocardiography laboratory. Patients with poor apical echocardiographic window (best plane for image acquisition), and those on atrial fibrillation (when it is difficult to gate to the R-R interval) were excluded. Topic anesthesia with lidocaine spray and slight sedation with intravenous midazolan were used.After 2DE with conventional Doppler was performed, a 5 MHz multiplanar transducer (Vingmed CFM 800) was used to obtain several images for 3D reconstruction. The echocardiograph was coupled to a 3D reconstruction system (Echoscan Tomtec GmbH).

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“…Successful TAVR deployment depends on precise measurements of these structures. Because of a limited number of prosthesis sizes (20,23,26 TAVR is currently performed only in patients with trileaflet AS, therefore analyzing the number of leaflets is crucial for patient selection. In patients with normal aortic leaflets, this is a relatively easy endeavor; however, in patients with heavily calcified leaflets and severe commissure fusion, this can be more difficult to ascertain.…”

Section: Aortic Valve Complexmentioning

confidence: 99%

“…RT 3-D TEE is emerging as the preferred echocardiographic tool for the morphologic and functional characterization of the stenotic aortic valve [20][21][22][23][24][25] ( Figure 4). RT 3-D TEE facilitates the obtaining of the cross-sectional plane where the aortic valve area is smallest, usually at the tips of the leaflets.…”

Section: -D Echocardiography In Aortic Stenosismentioning

confidence: 99%

Imaging techniques in transcatheter aortic valve replacement

Quaife¹,

Dorosz²,

Messenger³

et al. 2013

RRCC

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Calcific aortic stenosis is now understood as a complex valvular degenerative process sharing many risk factors with atherosclerosis. Once patients develop symptomatic calcific aortic stenosis, the only effective treatment is aortic valve replacement. In the past decade, transcatheter aortic valve replacement (TAVR) has been developed as an alternative to surgery to treat severe calcific aortic stenosis. Cardiac imaging plays a pivotal role in the contemporary management of patients with calcific aortic stenosis, and particularly in patients being considered for TAVR, who demand detailed imaging of the aortic valve apparatus. In this review, we highlight the role of cardiac imaging for patient selection, procedural guidance, and evaluation of results of TAVR.

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Quantitative assessment of aortic stenosis by three-dimensional echocardiography

Cited by 47 publications

References 5 publications

LV volume quantification via spatiotemporal analysis of real-time 3-D echocardiography

LV volume quantification via spatiotemporal analysis of real-time 3-D echocardiography

Dynamic three-dimensional reconstruction of the heart by transesophageal echocardiography

Imaging techniques in transcatheter aortic valve replacement

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