@Article{RSM:Leo94,
  author =       "L.J. Leon and F.A. Roberge and A. Vinet",
  title =        "Simulation of two-dimensional anisotropic cardiac
                 reentry: effects of the wavelength on the reentry
                 characteristics.",
  journal =      j-ABE,
  year =         "1994",
  month =        nov # "-" # dec,
  volume =       "22",
  number =       "6",
  pages =        "592--609",
  robnote =      "A two-dimensional sheet model was used to study the
                 dynamics of reentry around a zone of functional block.
                 The sheet is a set of parallel, continuous, and uniform
                 cables, transversely interconnected by a brick-wall
                 arrangement of fixed resistors. In accord with
                 experimental observations on cardiac tissue,
                 longitudinal propagation is continuous, whereas
                 transverse propagation exhibits discontinuous features.
                 The width and length of the sheet are 1.5 and 5 cm,
                 respectively, and the anisotropy ratio is fixed at
                 approximately 4:1. The membrane model is a modified
                 Beeler-Reuter formulation incorporating faster sodium
                 current dynamics. We fixed the basic wavelength and
                 action potential duration of the propagating impulse by
                 dividing the time constants of the secondary inward
                 current by an integer K. Reentry was initiated by a
                 standard cross-shock protocol, and the rotating
                 activity appeared as curling patterns around the point
                 of junction (the q-point) of the activation (A) and
                 recovery (R) fronts. The curling R front always
                 precedes the A front and is separated from it by the
                 excitable gap. In addition, the R front is occasionally
                 shifted abruptly through a merging with a slow-moving
                 triggered secondary recovery front that is dissociated
                 from the A front and q-point. Sustained irregular
                 reentry associated with substantial excitable gap
                 variations was simulated with short wavelengths (K = 8
                 and K = 4). Unsustained reentry was obtained with a
                 longer wavelength (K = 2), leading to a breakup of the
                 q-point locus and the triggering of new activation
                 fronts.",
  bibdate =      "01/19/02 15:23:09",
}

{"_id":"yif8zGf8wQEHNqRBt","bibbaseid":"leon-roberge-vinet-simulationoftwodimensionalanisotropiccardiacreentryeffectsofthewavelengthonthereentrycharacteristics-1994","downloads":0,"creationDate":"2016-07-01T21:38:36.342Z","title":"Simulation of two-dimensional anisotropic cardiac reentry: effects of the wavelength on the reentry characteristics.","author_short":["Leon, L.","Roberge, F.","Vinet, A."],"year":1994,"bibtype":"article","biburl":"http://www.sci.utah.edu/~macleod/Bibtex/biglit.bib","bibdata":{"bibtype":"article","type":"article","author":[{"firstnames":["L.J."],"propositions":[],"lastnames":["Leon"],"suffixes":[]},{"firstnames":["F.A."],"propositions":[],"lastnames":["Roberge"],"suffixes":[]},{"firstnames":["A."],"propositions":[],"lastnames":["Vinet"],"suffixes":[]}],"title":"Simulation of two-dimensional anisotropic cardiac reentry: effects of the wavelength on the reentry characteristics.","journal":"j-ABE","year":"1994","month":"November-December","volume":"22","number":"6","pages":"592–609","robnote":"A two-dimensional sheet model was used to study the dynamics of reentry around a zone of functional block. The sheet is a set of parallel, continuous, and uniform cables, transversely interconnected by a brick-wall arrangement of fixed resistors. In accord with experimental observations on cardiac tissue, longitudinal propagation is continuous, whereas transverse propagation exhibits discontinuous features. The width and length of the sheet are 1.5 and 5 cm, respectively, and the anisotropy ratio is fixed at approximately 4:1. The membrane model is a modified Beeler-Reuter formulation incorporating faster sodium current dynamics. We fixed the basic wavelength and action potential duration of the propagating impulse by dividing the time constants of the secondary inward current by an integer K. Reentry was initiated by a standard cross-shock protocol, and the rotating activity appeared as curling patterns around the point of junction (the q-point) of the activation (A) and recovery (R) fronts. The curling R front always precedes the A front and is separated from it by the excitable gap. In addition, the R front is occasionally shifted abruptly through a merging with a slow-moving triggered secondary recovery front that is dissociated from the A front and q-point. Sustained irregular reentry associated with substantial excitable gap variations was simulated with short wavelengths (K = 8 and K = 4). Unsustained reentry was obtained with a longer wavelength (K = 2), leading to a breakup of the q-point locus and the triggering of new activation fronts.","bibdate":"01/19/02 15:23:09","bibtex":"@Article{RSM:Leo94,\n author = \"L.J. Leon and F.A. Roberge and A. Vinet\",\n title = \"Simulation of two-dimensional anisotropic cardiac\n reentry: effects of the wavelength on the reentry\n characteristics.\",\n journal = j-ABE,\n year = \"1994\",\n month = nov # \"-\" # dec,\n volume = \"22\",\n number = \"6\",\n pages = \"592--609\",\n robnote = \"A two-dimensional sheet model was used to study the\n dynamics of reentry around a zone of functional block.\n The sheet is a set of parallel, continuous, and uniform\n cables, transversely interconnected by a brick-wall\n arrangement of fixed resistors. In accord with\n experimental observations on cardiac tissue,\n longitudinal propagation is continuous, whereas\n transverse propagation exhibits discontinuous features.\n The width and length of the sheet are 1.5 and 5 cm,\n respectively, and the anisotropy ratio is fixed at\n approximately 4:1. The membrane model is a modified\n Beeler-Reuter formulation incorporating faster sodium\n current dynamics. We fixed the basic wavelength and\n action potential duration of the propagating impulse by\n dividing the time constants of the secondary inward\n current by an integer K. Reentry was initiated by a\n standard cross-shock protocol, and the rotating\n activity appeared as curling patterns around the point\n of junction (the q-point) of the activation (A) and\n recovery (R) fronts. The curling R front always\n precedes the A front and is separated from it by the\n excitable gap. In addition, the R front is occasionally\n shifted abruptly through a merging with a slow-moving\n triggered secondary recovery front that is dissociated\n from the A front and q-point. Sustained irregular\n reentry associated with substantial excitable gap\n variations was simulated with short wavelengths (K = 8\n and K = 4). Unsustained reentry was obtained with a\n longer wavelength (K = 2), leading to a breakup of the\n q-point locus and the triggering of new activation\n fronts.\",\n bibdate = \"01/19/02 15:23:09\",\n}\n\n","author_short":["Leon, L.","Roberge, F.","Vinet, A."],"key":"RSM:Leo94","id":"RSM:Leo94","bibbaseid":"leon-roberge-vinet-simulationoftwodimensionalanisotropiccardiacreentryeffectsofthewavelengthonthereentrycharacteristics-1994","role":"author","urls":{},"metadata":{"authorlinks":{}},"downloads":0,"html":""},"search_terms":["simulation","two","dimensional","anisotropic","cardiac","reentry","effects","wavelength","reentry","characteristics","leon","roberge","vinet"],"keywords":[],"authorIDs":[],"dataSources":["5HG3Kp8zRwDd7FotB"]}