Search Results - "Knisley, Stephen"

Acoustofluidic Micromixing Enabled Hybrid Integrated Colorimetric Sensing, for Rapid Point-of-Care Measurement of Salivary Potassium by Surendran, Vikram, Chiulli, Thomas, Manoharan, Swetha, Knisley, Stephen, Packirisamy, Muthukumaran, Chandrasekaran, Arvind

“…The integration of microfluidics with advanced biosensor technologies offers tremendous advantages such as smaller sample volume requirement and precise…”
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A host of measurements to explain right ventricular arrhythmias in aged mice by Knisley, Stephen B., PhD

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Anodal Capture, Cathodal Capture, and Left Ventricular Cardiac Excitation by MOUNSEY, J. PAUL, KNISLEY, STEPHEN B.

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An alternative hypothesis for right precordial ST-segment elevation in structural heart disease with diminished sodium current by Knisley, Stephen B., PhD, Mounsey, J. Paul, MD, PhD

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Transmembrane Voltage Changes During Unipolar Stimulation of Rabbit Ventricle by Knisley, Stephen B

“…This study tested the prediction of bidomain models that unipolar stimulation of anisotropic myocardium produces transmembrane voltage changes (Delta V sub m…”
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Ratiometry of transmembrane voltage-sensitive fluorescent dye emission in hearts by Knisley, S B, Justice, R K, Kong, W, Johnson, P L

“…Transmembrane voltage-sensitive fluorescence measurements are limited by baseline drift that can obscure changes in resting membrane potential and by motion…”
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Roles of Electric Field and Fiber Structure in Cardiac Electric Stimulation by Knisley, Stephen B., Trayanova, Natalia, Aguel, Felipe

“…This study investigated roles of the variation of extracellular voltage gradient (VG) over space and cardiac fibers in production of transmembrane voltage…”
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Epicardial Conductors Can Lower the Defibrillation Threshold in Rabbit Hearts by Sims, Jared A., Knisley $^\ast$, Stephen B.

“…During a defibrillation shock, epicardial conductors can introduce antistimulatory effects due to lowering of the voltage gradient in myocardial tissue under…”
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Use of light absorbers to alter optical interrogation with epi-illumination and transillumination in three-dimensional cardiac models by Ramshesh, Venkat K, Knisley, Stephen B

“…Cardiac optical mapping currently provides 2-D maps of transmembrane voltage-sensitive fluorescence localized near the tissue surface. Methods for…”
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Stimulatory Current at the Edge of an Inactive Conductor in an Electric Field: Role of Nonlinear Interfacial Current-Voltage Relationship by Sims, Jared A., Pollard, Andrew E., White, Peter S., Knisley, Stephen B.

“…Cardiac electric field stimulation is critical for the mechanism of defibrillation. The presence of certain inactive epicardial conductors in the field during…”
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Quantifying spatial localization of optical mapping using Monte Carlo simulations by Lei Ding, Splinter, R., Knisley, S.B.

“…Optical mapping techniques used to study spatial distributions of cardiac activity can be divided into two categories; (1) broad-field excitation method, in…”
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Use of translucent indium tin oxide to measure stimulatory effects of a passive conductor during field stimulation of rabbit hearts by Knisley, Stephen B, Pollard, Andrew E

“…Biomathematical models and experiments have indicated that passive extracellular conductors influence field stimulation. Because metallic conductors prevent…”
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Myocardial electrical impedance as a predictor of the quality of RF-induced linear lesions by Dumas Iii, John H, Himel Iv, Herman D, Kiser, Andy C, Quint, Stephen R, Knisley, Stephen B

“…Production of complete (i.e. continuous and transmural) cardiac lesions by radiofrequency (RF) ablation can cure certain cardiac arrhythmias. However, a…”
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Comment on "Ventricular Arrhythmias Following Exposure of Failing Hearts to Oxidative Stress In Vitro" by KNISLEY, STEPHEN B.

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Comparison of optical and electrical mapping of fibrillation by Himel, 4th, Herman D, Knisley, Stephen B

“…Optical recordings with transmembrane potential (Vm)-sensitive fluorescent dye, or extracellular potential (Ve) recordings are used to map spatiotemporal…”
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A design for simulating and validating the nuss procedure for the minimally invasive correction of pectus excavatum by Rechowicz, Krzysztof J, Kelly, Robert, Goretsky, Michael, Frantz, Frazier W, Knisley, Stephen B, Nuss, Donald, McKenzie, Frederic D

“…Surgical planners are used to achieve the optimal outcome for a surgery, especially in procedures where a positive aesthetic outcome is the primary goal, such…”
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Two-Photon Excitation of di-4-ANEPPS for Optical Recording of Action Potentials in Rabbit Heart by Dumas, John H., Knisley, Stephen B.

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Modulation of triggered activity by uncoupling in the ischemic border. A model study with phase 1b-like conditions by Pollard, Andrew E, Cascio, Wayne E, Fast, Vladimir G, Knisley, Stephen B

“…Triggered beats during regional ischemia may depend upon the electrical source and sink charge interactions between adjacent regions of normal and ischemic…”
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Optical mapping of V m and Cai 2+ in a model of arrhythmias induced by local catecholamine application in patterned cell cultures by Lan, David Z., Pollard, Andrew E., Knisley, Stephen B., Fast, Vladimir G.

“…Catecholamines are known to provoke cardiac arrhythmias, but important aspects such as localization of the arrhythmia source in multicellular tissue and exact…”
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Critique of a Computer Model Study of AC Defibrillation by KNISLEY, STEPHEN B.

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