Search Results - "Pratt, Ronald G."

p62 Is Required for Stem Cell/Progenitor Retention through Inhibition of IKK/NF-κB/Ccl4 Signaling at the Bone Marrow Macrophage-Osteoblast Niche by Chang, Kyung Hee, Sengupta, Amitava, Nayak, Ramesh C., Duran, Angeles, Lee, Sang Jun, Pratt, Ronald G., Wellendorf, Ashley M., Hill, Sarah E., Watkins, Marcus, Gonzalez-Nieto, Daniel, Aronow, Bruce J., Starczynowski, Daniel T., Civitelli, Roberto, Diaz-Meco, Maria T., Moscat, Jorge, Cancelas, Jose A.

“…In the bone marrow (BM), hematopoietic progenitors (HPs) reside in specific anatomical niches near osteoblasts (Obs), macrophages (MΦs), and other cells…”
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A Weighted Head Accelerator Mechanism (WHAM) for visualizing brain rheology using magnetic resonance imaging by Pratt, Ronald G., Lee, Greg, McAllister, Aaron S., Smith, Daniel R., Myer, Gregory D., Ireland, Christopher M., Loew, Wolfgang M., Lanier, Matt, Wang, Hui, Diekfuss, Jed A., Yuan, Weihong, Dumoulin, Charles L.

“…A device for moving the head during MR imaging, called a Weighted Head Accelerator Mechanism (WHAM), rotates the head of a supine subject within programmable…”
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Mapping and correcting hyperpolarized magnetization decay with radial keyhole imaging by Niedbalski, Peter J., Willmering, Matthew M., Robertson, Scott H., Freeman, Matthew S., Loew, Wolfgang, Giaquinto, Randy O., Ireland, Christopher, Pratt, Ronald G., Dumoulin, Charles L., Woods, Jason C., Cleveland, Zackary I.

“…Purpose Hyperpolarized (HP) media enable biomedical imaging applications that cannot be achieved with conventional MRI contrast agents. Unfortunately,…”
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MRI in the neonatal ICU: initial experience using a small-footprint 1.5-T system by Tkach, Jean A, Merhar, Stephanie L, Kline-Fath, Beth M, Pratt, Ronald G, Loew, Wolfgang M, Daniels, Barret R, Giaquinto, Randy O, Rattan, Mantosh S, Jones, Blaise V, Taylor, Michael D, Tiefermann, Janice M, Tully, Lisa M, Murphy, E Colleen, Wolf-Severs, Rachel N, LaRuffa, Angela A, Dumoulin, Charles L

“…The objective of our study was to develop a small 1.5-T MRI system for neonatal imaging that can be installed in the neonatal ICU (NICU) and to evaluate its…”
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Preclinical hyperpolarized 129Xe MRI: ventilation and T2 mapping in mouse lungs at 7 T using multi‐echo flyback UTE by Niedbalski, Peter J., Cochran, Alexander S., Akinyi, Teckla G., Thomen, Robert P., Fugate, Elizabeth M., Lindquist, Diana M., Pratt, Ronald G., Cleveland, Zackary I.

“…Fast apparent transverse relaxation (short T2*) is a common obstacle when attempting to perform quantitative 1H MRI of the lungs. While T2* times are longer…”
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Preclinical hyperpolarized 129 Xe MRI: ventilation and T 2 mapping in mouse lungs at 7 T using multi-echo flyback UTE by Niedbalski, Peter J, Cochran, Alexander S, Akinyi, Teckla G, Thomen, Robert P, Fugate, Elizabeth M, Lindquist, Diana M, Pratt, Ronald G, Cleveland, Zackary I

“…Fast apparent transverse relaxation (short T *) is a common obstacle when attempting to perform quantitative H MRI of the lungs. While T * times are longer for…”
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Characterization of acoustic noise in a neonatal intensive care unit MRI system by Tkach, Jean A., Li, Yu, Pratt, Ronald G., Baroch, Kelly A., Loew, Wolfgang, Daniels, Barret R., Giaquinto, Randy O., Merhar, Stephanie L., Kline-Fath, Beth M., Dumoulin, Charles L.

“…Background To eliminate the medical risks and logistical challenges of transporting infants from the neonatal intensive care unit (NICU) to the radiology…”
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Preclinical hyperpolarized 129 Xe MRI: ventilation and T2 mapping in mouse lungs at 7 T using multi-echo flyback UTE by Niedbalski, Peter J, Cochran, Alexander S, Akinyi, Teckla G, Thomen, Robert P, Fugate, Elizabeth M, Lindquist, Diana M, Pratt, Ronald G, Cleveland, Zackary I

“…Fast apparent transverse relaxation (short T2 *) is a common obstacle when attempting to perform quantitative 1 H MRI of the lungs. While T2 * times are longer…”
Get full text

Preclinical Hyperpolarized 129Xe MRI: Ventilation and T2 Mapping in Mouse Lungs at 7T using Multi-Echo Flyback UTE by Niedbalski, Peter J., Cochran, Alexander S., Akinyi, Teckla G., Thomen, Robert P., Fugate, Elizabeth M., Lindquist, Diana M., Pratt, Ronald G., Cleveland, Zackary I.

“…Fast apparent transverse relaxation (short T 2 *) is a common obstacle when attempting to perform quantitative 1 H MRI of the lungs. While T 2 * times are…”
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Perfluorocarbon Compound Aerosols for Delivery to the Lung as Potential 19F Magnetic Resonance Reporters of Regional Pulmonary pO2 by THOMAS, STEPHEN R, GRADON, LEON, PRATSINIS, SOTIRIS E, PRATT, RONALD G, FOTOU, GEORGE P, McGORON, ANTHONY J, PODGORSKI, ALBERT L, MILLARD, RONALD W

“…RATIONALE AND OBJECTIVESPerfluorocarbon (PFC) aerosols present the opportunity for simultaneous analysis of lung structure and pulmonary oxygenation patterns…”
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p62 is required to retain short-term repopulating and myeloid progenitor cells through inhibition of IKK/NF-κB/Ccl4 signaling at the bone marrow macrophage-osteoblast niche by Chang, Kyung Hee, Sengupta, Amitava, Nayak, Ramesh C., Duran, Angeles, Lee, Sang Jun, Pratt, Ronald G., Wellendorf, Ashley M., Hill, Sarah E., Watkins, Marcus, Gonzalez-Nieto, Daniel, Aronow, Bruce J., Starczynowski, Daniel T., Civitelli, Roberto, Diaz-Meco, Maria T., Moscat, Jorge, Cancelas, Jose A.

“…In the bone marrow (BM), hematopoietic progenitors (HP) reside in specific anatomical niches near osteoblasts (Ob), macrophages (MΦ) and other cells forming…”
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Quantitation of perfluorocarbon blood substitutes in tissues using F-19 magnetic resonance spectroscopy by Pratt, R G, Thomas, S R, Millard, R W, Samaratunga, R C, Naseem, M H

“…F-19 Magnetic Resonance Spectroscopy (MRS) has been used to quantitate the biodistribution of perfluorocarbon (PFC) blood substitutes in porcine tissues…”
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In vivo PO2 imaging in the porcine model with perfluorocarbon F-19 NMR at low field by THOMAS, S. R, PRATT, R. G, MILLARD, R. W, SAMARATUNGA, R. C, SHIFERAW, Y, MCGORON, A. J, KIM KIAT TAN

“…Quantitative pO2 imaging in vivo has been evaluated utilizing F-19 NMR in the porcine model at 0.14 T for the lungs, liver, and spleen following i.p…”
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Magnetic resonance imaging of neural transplants in rat brain using a superparamagnetic contrast agent by Norman, A B, Thomas, S R, Pratt, R G, Lu, S Y, Norgren, R B

“…Rat fetal brain tissue was incubated in vitro with superparamagnetic ferrite particles covalently coupled to the lectin wheat germ agglutinin (WGA) and…”
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In vivo pO 2 imaging in the porcine model with perfluorocarbon F-19 NMR at low field by Thomas, Stephen R., Pratt, Ronald G., Millard, Ronald W., Samaratunga, Ranasinghage C., Shiferaw, Yoseph, McGoron, Anthony J., Tan, Kim Kiat

“…Quantitative pO 2 imaging in vivo has been evaluated utilizing F-19 NMR in the porcine model at 0.14 T for the lungs, liver, and spleen following IP…”
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Evaluation of the influence of the aqueous phase bioconstituent environment on the F-19 T1 of perfluorocarbon blood substitute emulsions by Thomas, S R, Pratt, R G, Millard, R W, Samaratunga, R C, Shiferaw, Y, Clark, Jr, L C, Hoffmann, R E

“…Oxygen-sensitive F-19 magnetic resonance imaging of perfluorocarbon compounds requires that fluorocarbon T1 changes correlate with the local PO2 and not with…”
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Intravascular irradiation using RE-186 liquid-filled balloon catheters by McGoron, Anthony J., Kassing, William M., Thomas, Stephen R., Samaratunga, Ranasinghage C., Pratt, Ronald G., Elson, Howard R., Pipes, David W.

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Intravascular irradiation using RE-186 liquid-filled balloon catheters: Correlation between experimental and theoretical studies by McGoron, Anthony J., Kassing, William M., Thomas, Stephen R., Samaratunga, Ranasinghage C., Pratt, Ronald G., Elson, Howard R., Pipes, David W.

“…Purpose. Optimization of intravascular radiation to reduce stenosis following coronary angioplasty requires the ability to predict the patterns of radiation…”
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T1 and T2 weighted magnetic resonance imaging of excitotoxin lesions and neural transplants in rat brain in vivo by Norman, A B, Thomas, S R, Pratt, R G, Samaratunga, R C, Sanberg, P R

“…On T1- and T2-weighted magnetic resonance (MR) images obtained at 0.14 T the rat brain was visible in the rat head as an area of relative high signal…”
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A magnetic resonance imaging contrast agent differentiates between the vascular properties of fetal striatal tissue transplants and gliomas in rat brain in vivo by Norman, A B, Thomas, S R, Pratt, R G, Samaratunga, R C, Sanberg, P R

“…The tumors formed by rat C-6 glioma cells were isointense with the normal rat brain on precontrast T1 weighted magnetic resonance (MR) images. Following i.v…”
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