Search Results - "Reutter, B W"

Effects of temporal modelling on the statistical uncertainty of spatiotemporal distributions estimated directly from dynamic SPECT projections by Reutter, B W, Gullberg, G T, Huesman, R H

“…Artefacts can result when reconstructing a dynamic image sequence from inconsistent single photon emission computed tomography (SPECT) projection data acquired…”
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Real-time system for respiratory-cardiac gating in positron tomography by Klein, G.J., Reutter, B.W., Ho, M.H., Reed, J.H., Huesman, R.H.

“…A Macintosh-based signal processing system has been developed to support simultaneous respiratory and cardiac gating on the ECAT EXACT HR PET scanner. Using…”
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Four-dimensional affine registration models for respiratory-gated PET by Klein, G.J., Reutter, R.W., Huesman, R.H.

“…The heart position shifts considerably due to motion associated with the respiratory cycle, and this motion can degrade the image quality of cardiac-gated…”
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Non-rigid summing of gated PET via optical flow by Klein, G.J., Reutter, B.W., Huesman, R.H.

“…A method for summing together datasets from gated cardiac PET acquisitions is described. Optical flow techniques are used to accurately model non-rigid motion…”
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Scintillator Non-Proportionality: Present Understanding and Future Challenges by Moses, W.W., Payne, S.A., Choong, W.-S., Hull, G., Reutter, B.W.

“…Scintillator non-proportionality (the fact that the conversion factor between the energy deposited in a scintillator and the number of visible photons produced…”
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Kinetic parameter estimation from attenuated SPECT projection measurements by Reutter, B.W., Gullberg, G.T., Huesman, R.H.

“…Conventional analysis of dynamically acquired nuclear medicine data involves fitting kinetic models to time-activity curves generated from regions of interest…”
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Kinetic parameter estimation from SPECT cone-beam projection measurements by Huesman, R H, Reutter, B W, Zeng, G L, Gullberg, G T

“…Kinetic parameters are commonly estimated from dynamically acquired nuclear medicine data by first reconstructing a dynamic sequence of images and subsequently…”
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A methodology for specifying PET VOIs using multimodality techniques by Klein, G.J., Teng, X., Jagust, W.J., Eberling, J.L., Acharya, A., Reutter, B.W., Huesman, R.H.

“…Volume-of-interest (VOI) extraction for radionuclide and anatomical measurements requires correct identification and delineation of the anatomical feature…”
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Automated 3-D segmentation of respiratory-gated PET transmission images by Reutter, B., Klein, G.J., Huesman, R.H.

“…As a preliminary step toward performing respiration compensated attenuation correction of respiratory-gated cardiac PET data, we acquired and automatically…”
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Kinetic analysis of rubidium and thallium as deposited myocardial blood flow tracers in isolated rabbit heart by Marshall, R C, Taylor, S E, Powers-Risius, P, Reutter, B W, Kuruc, A, Coxson, P G, Huesman, R H, Budinger, T F

“…Evaluation of myocardial perfusion with tracers such as thallium and rubidium is based on the assumption that tissue tracer content is proportional to flow…”
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List-mode maximum-likelihood reconstruction applied to positron emission mammography (PEM) with irregular sampling by Huesman, R.H., Klein, G.J., Moses, W.W., Jinyi Qi, Reutter, B.W., Virador, P.R.G.

“…Presents a preliminary study of list-mode likelihood reconstruction of images for a rectangular positron emission tomograph (PET) specifically designed to…”
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Direct least-squares estimation of spatiotemporal distributions from dynamic SPECT projections using a spatial segmentation and temporal B-splines by Reutter, B.W., Gullberg, G.T., Huesman, R.H.

“…Artifacts can result when reconstructing a dynamic image sequence from inconsistent, as well as insufficient and truncated, cone beam single photon emission…”
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Dual PET-TRUS prostate image registration by Huber, J S, Peng, Q, Moses, W W, Reutter, B W, Pouliot, J, Hsu, I C

“…Multimodality imaging has an increasingly important role in the diagnosis and treatment of a large number of diseases, particularly if both functional and…”
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Comparison of rectangular and dual-planar positron emission mammography scanners by Jinyi Qi, Kuo, C., Huesman, R.H., Klein, G.J., Moses, W.W., Reutter, B.W.

“…Breast imaging using dedicated positron emission tomography (PEM) has gained much interest in the medical imaging field. In this paper, we compare the…”
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Accuracy and precision of compartmental model parameters obtained from directly estimated dynamic SPECT time-activity curves by Reutter, B.W., Gullberg, G.T., Huesman, R.H.

“…Quantitative kinetic analysis of dynamic cardiac single photon emission computed tomography (SPECT) data has the potential to provide better contrast between…”
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Estimating glucose metabolism using glucose analogs and two tracer kinetic models in isolated rabbit heart by Marshall, R.C. (University of California, Berkeley, CA.), Powers-Risius, P, Huesman, R.H, Reutter, B.W, Taylor, S.E, Maurer, H.E, Huesman, M.K, Budinger, T.F

“…The purpose of this investigation was to 1) evaluate the relative accuracy of the Sokoloff and Patlak tracer kinetic models in estimating glucose metabolic…”
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Measurements of NaI(Tl) Electron Response: Comparison of Different Samples by Hull, G., Woon-Seng Choong, Moses, W.W., Bizarri, G., Valentine, J.D., Payne, S.A., Cherepy, N.J., Reutter, B.W.

“…This paper measures the sample to sample variation in the light yield proportionality of NaI(Tl), and so explores whether this is an invariant characteristic…”
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Development of a High-Sensitivity Radiation Detector for Chromatography by Huber, J S, Hanrahan, S M, Moses, W W, Derenzo, S E, Reutter, B W, O'Neil, J P, Gullberg, G T

“…We describe a radiotracer imaging system for measuring the biochemical production rates of organic compounds from animals or plants. It uses a high performance…”
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Strategies for extraction of quantitative data from volumetric dynamic cardiac positron emission tomography data by Huesman, R H, Klein, G J, Reutter, B W, Coxson, P G, Botvinick, E H, Budinger, T F

“…The ability of positron emission tomography (PET) to serve as a useful myocardial perfusion indicator is well established. We describe a methodology for…”
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Development of a high-sensitivity radiation detector for chromatography by Huber, J.S., Hanrahan, S.M., Moses, W.W., Derenzo, S.E., Reutter, B.W., O'Neil, J.P., Gullberg, G.T.

“…Radionuclide techniques will be increasingly important for the development of biofuels, since they can both uniquely characterize metabolic pathways and image…”
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