• Publications
  • Influence
Evaluation of spike-detection algorithms fora brain-machine interface application
  • I. Obeid, P. Wolf
  • Computer Science, Medicine
  • IEEE Transactions on Biomedical Engineering
  • 24 May 2004
TLDR
We examined three classes of spike-detection algorithms to determine which is best suited for a wireless BMI with a limited transmission bandwidth and computational capabilities. Expand
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Enhanced phase noise modeling of fractional-N frequency synthesizers
TLDR
Mathematical models for the behavior of fractional-N phase-locked-loop frequency synthesizers (Frac-N) are presented. Expand
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Intracardiac echocardiography measurement of dynamic myocardial stiffness with shear wave velocimetry.
Acoustic radiation force (ARF)-based methods have been demonstrated to be a viable tool for noninvasively estimating tissue elastic properties, and shear wave velocimetry has been used to measureExpand
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Transmural activations and stimulus potentials in three-dimensional anisotropic canine myocardium.
Epicardial and endocardial pacing are widely used, yet little is known about the three-dimensional distribution of potentials generated by the pacing stimulus or the spread of activation from theseExpand
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Stimulus-induced critical point. Mechanism for electrical initiation of reentry in normal canine myocardium.
The hypothesis was tested that the field of a premature (S2) stimulus, interacting with relatively refractory tissue, can create unidirectional block and reentry in the absence of nonuniformExpand
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A multichannel telemetry system for single unit neural recordings
TLDR
We present the design, testing, and evaluation of a 16 channel wearable telemetry system to facilitate multichannel single unit recordings from freely moving test subjects. Expand
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  • PDF
Activation during ventricular defibrillation in open-chest dogs. Evidence of complete cessation and regeneration of ventricular fibrillation after unsuccessful shocks.
To test the hypothesis that a defibrillation shock is unsuccessful because it fails to annihilate activation fronts within a critical mass of myocardium, we recorded epicardial and transmuralExpand
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A Three-Dimensional Finite Element Model of Radiofrequency Ablation with Blood Flow and its Experimental Validation
  • M. K. Jain, P. Wolf
  • Chemistry, Medicine
  • Annals of Biomedical Engineering
  • 1 September 2000
AbstractA novel three-dimensional finite element model for the study of radiofrequency ablation is presented. The model was used to perform an analysis of the temperature distribution in a tissueExpand
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A low power multichannel analog front end for portable neural signal recordings
We present the design and testing of a 16-channel analog amplifier for processing neural signals. Each channel has the following features: (1) variable gain (70-94 dB), (2) four high pass BesselExpand
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Cardiac Potential and Potential Gradient Fields Generated by Single, Combined, and Sequential Shocks During Ventricular Defibrillation
Background Potential gradient field determination may be a helpful means of describing the effects of defibrillation shocks; however, potential gradient field requirements for defibnrllation withExpand
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