Search Results - "Tarasek, Matthew R"

Insertable, dual-density dielectric barrier for acoustic pressure level reduction in a high-performance human head-only MRI system by Lee, S.-K., Tarasek, Matthew R., Park, Keith, Yeo, Desmond T.-B., Foo, Thomas K.-F.

“…We report use of a dual-density dielectric barrier surrounding a detachable high-pass radiofrequency (RF) birdcage coil to achieve an order-of-magnitude…”
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Modeling and measurement of lead tip heating and resonant length for implanted, insulated wires by Bardwell Speltz, Lydia J., Lee, Seung‐Kyun, Shu, Yunhong, Tarasek, Matthew R., Trzasko, Joshua D., Foo, Thomas K. F., Bernstein, Matt A.

“…Purpose To study implant lead tip heating because of the RF power deposition by developing mathematical models and comparing them with measurements acquired at…”
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Evaluation of a compact 3 T MRI scanner for patients with implanted devices by Bardwell Speltz, Lydia J., Shu, Yunhong, Watson, Robert E., Trzasko, Joshua D., In, Myung-Ho, Gray, Erin M., Halverson, Maria A., Tarasek, Matthew R., Hua, Yihe, Huston, John, Cogswell, Petrice M., Foo, Thomas K.F., Bernstein, Matt A.

“…Access to high-quality MR exams is severely limited for patients with some implanted devices due to labeled MR safety conditions, but small-bore systems can…”
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Radiofrequency Quadrupolar NMR Stark Spectroscopy: Steady State Response Calibration and Tensorial Mapping by Tarasek, Matthew R, Kempf, James G

“…Radiofrequency electric (E) fields oscillating at twice the usual NMR frequency (2ω0) can induce double-quantum transitions in quadrupolar nuclei, an NMR Stark…”
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A System for NMR Stark Spectroscopy of Quadrupolar Nuclei by Tarasek, Matthew R, Kempf, James G

“…Electrostatic influences on NMR parameters are well accepted. Experimental and computational routes have been long pursued to understand and utilize such Stark…”
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Validation of MR thermometry: method for temperature probe sensor registration accuracy in head and neck phantoms by Tarasek, Matthew R, Pellicer, Ruben, Hofstetter, Lorne W, Numan, Wouter C M, Bakker, Jurriaan F, Kotek, Gyula, Togni, Paolo, Verhaart, René F, Fiveland, Eric W, Houston, Gavin C, van Rhoon, Gerard C, Paulides, Margarethus Marius, Yeo, Desmond Teck Beng

“…Magnetic resonance thermometry (MRT) is an attractive means to non-invasively monitor in vivo temperature during head and neck hyperthermia treatments because…”
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Coherent NMR Stark spectroscopy by Tarasek, Matthew R., Goldfarb, David J., Kempf, James G.

“…[Display omitted] ► E-field pulses at 2 ω 0 synched with line narrowing isolates quadrupolar Stark effect. ► The phase of the 2 ω 0 field in the NMR frame…”
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Enhancing time-suspension sequences for the measurement of weak perturbations by Tarasek, Matthew R., Goldfarb, David J., Kempf, James G.

“…■■■ [Display omitted] ► Time-suspension sequences remove background interactions for high-resolution measurements. ► Performance compromised by temporal…”
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Evaluation of a compact 3T MRI scanner for patients with implanted devices by Bardwell Speltz, Lydia J, Shu, Yunhong, Watson, Robert E, Trzasko, Joshua D, In, Myung-Ho, Gray, Erin M, Halverson, Maria A, Tarasek, Matthew R, Hua, Yihe, Huston, John, Cogswell, Petrice M, Foo, Thomas KF, Bernstein, Matt A

“…Access to high-quality MR exams is severely limited for patients with some implanted devices due to labeled MR safety conditions, but small-bore systems can…”
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NMR Stark Spectroscopy: New Methods to Calibrate NMR Sensitivity to Electric Fields by Tarasek, Matthew R

“…The influence of electrostatics on NMR parameters is well accepted. Thus, NMR is a promising route to probe electrical features within molecules and materials…”
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NMR Stark Spectroscopy: New Methods to Calibrate NMR Sensitivity to Electric Fields by Tarasek, Matthew R

“…The influence of electrostatics on NMR parameters is well accepted. Thus, NMR is a promising route to probe electrical features within molecules and materials…”
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