Search Results - "Cespedes, E.I."

A new ultrasound contrast imaging approach based on the combination of multiple imaging pulses and a separate release burst by Frinking, P.J.A., Cespedes, E.I., Kirkhorn, J., Torp, H.G., de Jong, N.

“…A new ultrasound contrast imaging technique is described that optimally employs the rupture of the contrast agent. It is based on a combination of multiple…”
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Decorrelation characteristics of transverse blood flow along an intravascular array catheter by Lupotti, F.A., Cespedes, E.I., Van der Steen, A.F.

“…In recent years, a new method to measure transverse blood flow based on the decorrelation of radio frequency (RF) signals has been introduced. In this paper,…”
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Intraluminal ultrasonic palpation: assessment of local and cross-sectional tissue stiffness by Céspedes, E I, de Korte, C L, van der Steen, A F

“…Many intravascular therapeutic techniques for the treatment of significant atherosclerotic lesions are mechanical in nature: examples are angioplasty, stenting…”
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Echo decorrelation from displacement gradients in elasticity and velocity estimation by Cespedes, E.I., de Korte, C.L., van der Steen, A.F.W.

“…Several ultrasonic techniques for the estimation of blood velocity, tissue motion and elasticity are based on the estimation of displacement through echo…”
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Crossambiguity and wavelet processing in ultrasound elasticity imaging by Cespedes, E.I., de Korte, C.L., van der Steen, A.F.W.

“…Time-scaling the rf echo signals commensurately with the strain in tissue allows matching of pre- and post-deformation echo signal peaks and can result in an…”
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Influence of catheter position on estimated strain in intravascular elastography by De Korte, C.L., Cespedes, E.I., Van Der Steen, A.F.W.

“…In elastography, an erroneous strain estimate is obtained when the radial strain and the probing ultrasound beam are not properly aligned: the "strain…”
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Advancing intravascular ultrasonic palpation toward clinical applications by Doyley, M M, Mastik, F, de Korte, C L, Carlier, S G, Céspedes, E I, Serruys, P W, Bom, N, van der Steen, A F

“…This paper describes the first reported attempt to develop a real-time intravascular ultrasonic palpation system. We also report on our first experience in the…”
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Image artifacts in intravascular elastography by De Korte, C.L., Cespedes, E.I., Van der Steen, A.F.W., Lancee, C.T.

“…Intravascular ultrasound is being investigated as a tool for imaging the local elasticity of atherosclerotic vessels: the ultimate goal is to obtain images of…”
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Tissue mimicking material for intravascular elasticity imaging by De Korte, C.L., Cespedes, E.I., Van der Steen, A.F.W., Norder, B., Te Nijenhuis, K.

“…The mechanical properties of agar-gelatin gels used to construct vessel mimicking phantoms for ultrasonic elasticity studies are investigated. Gels with…”
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Multi-pulse ultrasound contrast imaging based on a decorrelation detection strategy by Frinking, P.J.A., Cespedes, E.I., De Jong, N.

“…A novel technique for the detection of ultrasound contrast agents is described. The particular signature that occurs for encapsulated types of contrast agents,…”
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Elastic and acoustic properties of vessel mimicking material for elasticity imaging by de Korte, C L, Céspedes, E I, van der Steen, A F, Norder, B, te Nijenhuis, K

“…The mechanical and acoustic properties of agar-gelatin gels, used to construct vessel mimicking phantoms for ultrasonic elasticity studies, were investigated…”
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Quantitative IVUS blood flow using an array catheter by Lupotti, F.A., Mastik, F., Carlier, S.G., Cespedes, E.I., Van der Steen, A.F.W.

“…In recent years, a new method to measure transverse blood flow, based on the decorrelation of radiofrequency (RF) signals has been introduced. In this paper,…”
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Computer modeling of decorrelation patterns of transverse blood flow by Lupotti, F.A., Cespedes, E.I., Van der Steen, A.F.W.

“…The decorrelation properties of the phased array transducer, as well as the influence of red blood cell aggregation on the decorrelation properties of flowing…”
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Intravascular ultrasonic palpation: assessment of local wall compliance by Cespedes, E.I., de Korte, C.L., van der Steen, A.F.W.

“…The availability of IVUS imaging has lead to interest in the development of complementary ultrasonic characterization techniques such as the assessment of the…”
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Intravascular elastography of human femoral arteries: an in vitro study by de Korte, C.L., van der Steen, A.F.W., Cespedes, E.I., Pasterkamp, G.

“…Intravascular elastography is a new technique to image the local mechanical properties of the vessel wall and its pathology using intravascular ultrasound…”
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Intracoronary elastography in the catheterisation laboratory: preliminary patient results by de Korte, C.L., Carlier, S.G., Mastik, F., Doyley, M.M., van der Steen, A.F.W., Cespedes, E.I., Serruys, P.W., Bom, N.

“…Intravascular ultrasound (IVUS) elastography is a new imaging technique that reveals regional mechanical properties of the vascular wall by measuring the local…”
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Decorrelation of intravascular ultrasound signals: a computer simulation study by Li, W., Lancee, C.T., Cespedes, E.I., van der Steen, A.F.W., Bom, N.

“…A computer model based on the impulse response method to simulate the ultrasound field of a 30 MHz transducer was developed for studying the decorrelation…”
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Novel developments in intravascular imaging by van der Steen, A.F.W., Cespedes, E.I., de Korte, C.L., Carlier, S.G., Li, W., Mastik, F., Lancee, C.T., Borsbroom, J., Lupotti, F., Krams, R., Serruys, P.W., Bom, N.

“…In the development of intravascular ultrasound (IVUS), a serious emphasis has been given to the improvement of the image quality in terms of resolution. The…”
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Flow estimation using an intravascular imaging catheter by van der Steen, A.F.W, Céspedes, E.I, Carlier, S.G, Mastik, F, Lupotti, F, Borsboom, J.M.G, Li, W, Serruys, P.W, Bom, N

“…Coronary flow assessment can be useful for determining the hemodynamic severity of a stenosis and to evaluate the outcome of interventional therapy. We…”
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IVUS elastography: a potential identifier of vulnerable atherosclerotic plaque by de Korte, C.L., Woutman, H.A., van der Steen, A.F.W., Cespedes, E.I., Pasterkamp, G.

“…Rupture of atherosclerotic plaques is associated with acute myocardial infarction and unstable angina pectoris. Previously, plaque rupture has been associated…”
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