Search Results - "Bacharach, S.L."

Identification of Contrast Media in PET/CT Using Dual Energy CT by Freedman, N.M.T., Moreno, R.M., Le Meunier, L., Bacharach, S.L.

“…Iodine-containing contrast media facilitate interpretation of CT images. In PET/CT such CT images are often converted to 511 keV attenuation maps to correct…”
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Noninvasive estimation of the aorta input function for measurement of tumor blood flow with [/sup 15/O] water by Watabe, W., Channing, M.A., Riddell, C., Jousse, F., Libutti, S.K., Carrasquillo, J.A., Bacharach, S.L., Carson, R.E.

“…Quantitative measurement of tumor blood flow with [/sup 15/O] water can be used to evaluate the effects of tumor treatment over time. Since quantitative flow…”
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An approximation formula for the variance of PET region-of-interest values by Carson, R.E., Yan, Y., Daube-Witherspoon, M.E., Freedman, N., Bacharach, S.L., Herscovitch, P.

“…An approximation formula for the variance of positron emission tomography (PET) region-of-interest (ROI) values has been developed, implemented, and evaluated…”
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Noise characteristics of 3-D and 2-D PET images by Pajevic, S., Daube-Witherspoon, M.E., Bacharach, S.L., Carson, R.E.

“…The authors analyzed the noise characteristics of two-dimensional (2-D) and three-dimensional (3-D) images obtained from the GE Advance positron emission…”
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The watershed algorithm: a method to segment noisy PET transmission images by Riddell, C., Brigger, P., Carson, R.E., Bacharach, S.L.

“…Attenuation correction is essential to PET imaging but often requires impractical acquisition times. Segmentation of short, noisier transmission scans has been…”
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Analysis of dynamic SPECT/CT measurements of the arterial input function in human subjects by Winant, C.D., Zelnik, Y.R., Reutter, B.W., Sitek, A., Bacharach, S.L., Gullberg, G.T., Aparici, C.M.

“…Measurement of the arterial input function (AIF) is essential to deriving quantitative estimates of regional myocardial blood flow using kinetic models…”
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Effects of time delay in cardiac blood flow measurements by bolus H/sub 2//sup 15/O by Pajevic, S., Bacharach, S.L., Carson, R.E., Weiss, G.H.

“…Myocardial blood flow (rMBF) can be measured using dynamic positron emission tomography (PET) and bolus injection of H/sub 2//sup 15/O. Recent studies indicate…”
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Quantitative accuracy of PET for image-based kinetic analysis by Youngho Seo, Boon-Keng Teo, Hadi, M., Schreck, C., Bacharach, S.L., Hasegawa, B.H.

“…It is essential to achieve quantitative accuracy of radioactivity concentrations (Bq/ml) when performing compartmental modeling and kinetic analysis of dynamic…”
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Myocardial perfusion abnormalities in patients with hypertrophic cardiomyopathy: assessment with thallium-201 emission computed tomography by O'GARA, P. T, BONOW, R. O, MARON, B. J, DAMSKE, B. A, VAN LINGEN, A, BACHARACH, S. L, LARSON, S. M, EPSTEIN, S. E

“…Myocardial ischemia may play a critical role in the symptomatic presentation and natural history of hypertrophic cardiomyopathy (HCM). To assess the relative…”
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Quantitative assessment of myositis in thigh muscles using magnetic resonance imaging by Bartlett, M.L, Ginn, L, Beitz, L, Villalba, M.L, Plotz, P, Bacharach, S.L

“…Magnetic resonance (MR) imaging has been suggested as a technique for diagnosing and monitoring myositis, an inflammatory muscle disease. To date, the…”
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Histomorphologic profile myocardial segments with normal thallium activity in chronic ischemic cardiomyopathy by Shirani, J., Lee, J., Kitsiou, A.N., Srinivasan, G., Quigg, R.J., Pick, R., Bacharach, S.L., Ohler, L., Miller-Davis, C., Dilsizian, V.

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Comparison of three methods of partial volume correction in dynamic PET cardiac imaging: a phantom and a pig study by Le Meunier, L., Hadi, M., de Silva, R., Carson, J.M., Dieckmann, W., Bacharach, S.L.

“…We compared 3 methods of correcting the underestimation in measurements of myocardial radiotracer uptake due to partial volume (PV) effects in cardiac PET…”
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Verapamil prevents silent myocardial perfusion abnormalities during exercise in asymptomatic patients with hypertrophic cardiomyopathy by UDELSON, J. E, BONOW, R. O, O'GARA, P. T, MARON, B. J, VAN LINGEN, A, BACHARACH, S. L, EPSTEIN, S. E

“…Recent studies indicate that reversible 201Tl perfusion defects, compatible with silent myocardial ischemia, commonly develop during exercise in asymptomatic…”
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Limited sinogram completion for transmission SPECT imaging by Riddell, C., Barker, W.C., Bacharach, S.L.

“…Truncation artifacts can occur in simultaneous emission transmission SPECT imaging even with parallel geometry, especially when the acquistion geometry is…”
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Variable scale reprojection for iterative reconstruction: application to PET reconstruction with OSEM by Riddell, C., Bacharach, S.L.

“…Iterative reconstruction algorithms require the repetitive application of reprojection and backprojection operations. Reprojection of an image at angle /spl…”
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Segmentation of gated TI-SPECT images and computation of ejection fraction: A different approach by Brigger, P., Bacharach, S.L., Srinivasan, G, Nour, KA, Carson, JA, Dilsizian, V, Aldroubi, A, Unser, M

“…Background. We describe a set of image processing algorithms and mathematical models that can be advantageously used in schemes for the segmentation of…”
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Regional cardiac wall motion from gated myocardial perfusion SPECT studies by Smith, M.F., Brigger, P., Ferrand, S.K., Dilsizian, V., Bacharach, S.L.

“…A method for estimating regional epicardial and endocardial wall motion from gated myocardial perfusion SPECT studies has been developed. The method uses…”
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Regional left ventricular function from short-duration SPECT gated blood pool studies by Mansour, P.M., Smith, M.F., Barker, W.C., Dilsizian, V., Srinivasan, G., Bacharach, S.L.

“…SPECT gated blood-pool (GBP) scans can provide accurate 3D assessments of resting regional left-ventricular (LV) function. However, due to limited scan times…”
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Identification of viable myocardium in patients with chronic coronary artery disease and left ventricular dysfunction. Comparison of thallium scintigraphy with reinjection and PET imaging with sup 18 F-fluorodeoxyglucose by Bonow, R.O., Dilsizian, V., Cuocolo, A., Bacharach, S.L.

“…In patients with chronic coronary artery disease and left ventricular dysfunction, the distinction between ventricular dysfunction arising from myocardial…”
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Real-time radionuclide cineangiography in the noninvasive evaluation of global and regional left ventricular function at rest and during exercise in patients with coronary-artery disease by Borer, J S, Bacharach, S L, Green, M V, Kent, K M, Epstein, S E, Johnston, G S

“…Although coronary angiography defines regions of potential ischemia in patients with coronary-artery disease, accurate assessment of the presence and…”
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