Zobrazeno 1 - 10
of 16
pro vyhledávání: '"N. L. Greenberg"'
Autor:
M. J. Garcia, R. Haberl, G. E. Böhme, N. L. Greenberg, Mani Vembar, D. J. Heuscher, D. Matthews
Publikováno v:
Medical Physics. 30:1683-1693
In this investigation, we describe a quantitative technique to measure coronary motion, which can be correlated with cardiac image quality using multislice computed tomography (MSCT) scanners. MSCT scanners, with subsecond scanning, thin-slice imagin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e57c011d3cfc775f51dc564942028e6e
https://doi.org/10.1118/1.1582812
https://doi.org/10.1118/1.1582812
Publikováno v:
Computers in cardiology. 29
Gradient vector flow (GVF), an elegant external force for parametric deformable models, can capture object boundaries from both sides. A new geometric deformable model is proposed that combines GVF and the geodesic active contour model. The level set
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::da6419292c7b21996c755398680bbd0b
https://pubmed.ncbi.nlm.nih.gov/14686447
https://pubmed.ncbi.nlm.nih.gov/14686447
Publikováno v:
Computers in cardiology. 29
Peak instantaneous power is a prognostic index of LV function but is difficult to measure. It is relatively load independent when corrected by preload (EDV2). Easier to acquire power estimates have been proposed--including mean and simplified power.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::65818ea348c40d40d4e980982649c9ee
https://pubmed.ncbi.nlm.nih.gov/14686456
https://pubmed.ncbi.nlm.nih.gov/14686456
Publikováno v:
Computers in cardiology. 28
Inertial forces (Mdv/dt) are a significant component of transmitral flow, but cannot be measured with Doppler echo. We validated a method of estimating Mdv/dt. Ten patients had a dual sensor transmitral (TM) catheter placed during cardiac surgery. Do
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::1e753e5bee963b56a394d8ffbaa8c80b
https://pubmed.ncbi.nlm.nih.gov/14640109
https://pubmed.ncbi.nlm.nih.gov/14640109
Autor:
N L, Greenberg, M S, Firstenberg, L A, Cardon, J, Zuckerman, B D, Levine, M J, Garcia, J D, Thomas
Publikováno v:
Computers in cardiology. 28
Assessment of left ventricular filling pressure usually requires invasive hemodynamic monitoring to follow the progression of disease or the response to therapy. Previous investigations have shown accurate estimation of wedge pressure using noninvasi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::42146eda41add972477264a81be5ec26
https://pubmed.ncbi.nlm.nih.gov/14640103
https://pubmed.ncbi.nlm.nih.gov/14640103
Publikováno v:
Computers in cardiology. 28
An efficient compression strategy is indispensable for digital echocardiography. Previous work has suggested improved results utilizing wavelet transforms in the compression of 2D echocardiographic images. Set partitioning in hierarchical trees (SPIH
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::13cfabd4333fa63958607d91dc54d802
https://pubmed.ncbi.nlm.nih.gov/14640095
https://pubmed.ncbi.nlm.nih.gov/14640095
Publikováno v:
Computers in cardiology. 28
Previous echocardiographic techniques for quantifying valvular regurgitation are limited by factors including uncertainties for orifice location and a hemispheric convergence assumption that often results in over- and underestimation of flow rate and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::cd7719438519dd4a1e528e977aaee0c7
https://pubmed.ncbi.nlm.nih.gov/14640088
https://pubmed.ncbi.nlm.nih.gov/14640088
Publikováno v:
Computers in cardiology. 28
Efforts to improve mitral regurgitation (MR) are often performed in conjunction with coronary revascularization. However, the independent effects of a reduced MR area (MRa) are difficult to quantify. Using a previously developed cardiovascular model,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::9d2d90668956126fbfbeddef529130fb
https://pubmed.ncbi.nlm.nih.gov/14640110
https://pubmed.ncbi.nlm.nih.gov/14640110
Publikováno v:
Computers in cardiology. 27
Real-time three-dimensional echocardiography has been introduced to provide improved quantification and description of cardiac function. Data compression is desired to allow efficient storage and improve data transmission. Previous work has suggested
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::fdb909debc80d5f583978c6fc7c839b5
https://pubmed.ncbi.nlm.nih.gov/14632009
https://pubmed.ncbi.nlm.nih.gov/14632009
Autor:
M S, Firstenberg, N L, Greenberg, M J, Garcia, P L, Castro, D L, Prior, N G, Smedira, J D, Thomas
Publikováno v:
Computers in cardiology. 26
We hypothesize that a simplified version of the Euler equation (SEE) utilizing differences in velocity over a distance and time as obtained by Color Doppler M-mode (CMM) echocardiography can approximate actual peak transmitral pressure gradients delt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::e5e675f3fb970e2baac46be9ddc1c674
https://pubmed.ncbi.nlm.nih.gov/12795281
https://pubmed.ncbi.nlm.nih.gov/12795281