| 摘要 |
A method of diagnosing an abnormal condition in a biological structure, su ch as the heart, including the steps of measuring a physiological response at a t least three sampled points on a surface of the biological structure, calculating a vecto r function related to the response. displaying a representation of the vector function, and inferring the abnormal condition from the representation. The present invention is particularly useful for diagnosing cardiac arrhythmias, in which case the physiological response is a voltage, from which is inferred a local activation time and th e vector function is a gradient of the local activation time, specifically, a conduction velocity. |
