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A first electrode is positioned within an artery proximate an implanted intravascular stent. A second electrode is positioned at a separate location relative the position of the first electrode. Electrical energy is then delivered between the first and the second electrodes to produce an electrical

A first electrode is positioned within an artery proximate an implanted intravascular stent. A second electrode is positioned at a separate location relative the position of the first electrode. Electrical energy is then delivered between the first and the second electrodes to produce an electrical field adjacent the implanted intravascular stent. When a intravascular stent is implanted in a coronary artery, the delivery of the electrical energy is coordinated to cardiac cycles detected in sensed cardiac signals, where the delivery of the electrical energy between the first electrode and the second electrode occurs during a predetermined portion of the cardiac cycle.

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A first electrode is positioned within an artery proximate an implanted intravascular stent. A second electrode is positioned at a separate location relative the position of the first electrode. Electrical energy is then delivered between the first and the second electrodes to produce an electrical

A first electrode is positioned within an artery proximate an implanted intravascular stent. A second electrode is positioned at a separate location relative the position of the first electrode. Electrical energy is then delivered between the first and the second electrodes to produce an electrical field adjacent the implanted intravascular stent. When a intravascular stent is implanted in a coronary artery, the delivery of the electrical energy is coordinated to cardiac cycles detected in sensed cardiac signals, where the delivery of the electrical energy between the first electrode and the second electrode occurs during a predetermined portion of the cardiac cycle. 25 bpm to approximately 30 bpm. 14. The method of claim 12, wherein each of said n narrow band filters is separated by a variable difference in frequency in a range of approximately 25 bpm to approximately 30 bpm. 15. The method of claim 1, further comprising filtering each of said plurality of candidate peaks with a narrow band filter of variable center frequency. 16. The method of claim 1, further comprising filtering each of said plurality of candidate peaks with a narrow band filter wherein filter coefficients are generated and adjusted so that the center frequency of said narrow band filter is approximately the frequency associated with each of said candidate peaks. 17. The method of claim 1, further comprising filtering each of said plurality of candidate peaks using a fast Fourier transform (FFT), narrow band filter and inverse FFT. 18. The method of claim 1, wherein said analyzing each of said plurality of candidate peaks with respect to said developed parameters includes calculating a window pulse rate. 19. The method of claim 1, wherein said analyzing each of said plurality of candidate peaks with respect to said developed parameters includes calculating pulse width variability. 20. The method of claim 1, wherein said analyzing each of said plurality of candidate peaks with respect to said developed parameters includes calculating SpO2variability. 21. The method of claim 1, wherein said analyzing each of said plurality of candidate peaks with respect to said developed parameters includes calculating pulse window SpO2. 22. The method of claim 1, wherein said analyzing each of said plurality of candidate peaks with respect to said developed parameters includes calculating pulse rate history percentage. 23. The method of claim 1, wherein said analyzing each of said plurality of candidate peaks with respect to said developed parameters includes calculating pulse window confidence. 24. The method of claim 23, wherein said calculating pulse window confidence includes a weighted sum of pulse width variability, SpO2variability and pulse rate history percentage. 25. The method of claim 1, wherein said analyzing each of said plurality of candidate peaks with respect to at least some of said developed parameters includes calculating a window pulse rate, pulse width variability, SpO2variability, pulse window SpO2,pulse rate history percentage and pulse window confidence. 26. The method of claim 1, wherein said arbitrating between at least some of said plurality of candidate peaks based on said developed parameters includes applying a predetermined criteria to select said best frequency. 27. The method of claim 1, wherein said plurality of candidate peaks comprises up to three candidate peaks, including a primary candidate peak, a secondary candidate peak and a tertiary candidate peak. 28. The method of claim 27, wherein said arbitrating between each of said up to three candidate peaks includes applying the following criteria using at least some of said developed parameters to select said best frequency: (a) if the primary candidate peak frequency is zero, then there is no valid candidate peak; (b) if the tertiary candidate peak pulse window confidence is less than the pulse window confidence for either the primary candidate peak or the secondary candidate peak, then the tertiary candidate peak is said best frequency; (c) if the primary candidate peak and the secondary candidate peak have both been rejected, then there is no valid candidate peak; (d) if the primary candidate peak has not been rejected and the secondary candidate peak has been rejected, then the primary candidate peak is said best frequency; (e) if the primary candidate peak has been rejected and the secondary candidate peak has not been rejected, then the secondary candidate peak is said best frequency; (f) if the primary candidate peak pulse window confidence is greater than the secondary candidate p