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  • Title: [Detecting atrial fibrillation and normal sinus rhythm by R-R intervals].
    Author: Lu H.
    Journal: Sheng Wu Yi Xue Gong Cheng Xue Za Zhi; 2010 Feb; 27(1):183-7. PubMed ID: 20337050.
    Abstract:
    This paper aims to find a new method of detecting atrial fibrillation (AF) with fast responding speed and high detecting precision by R-R intervals. Probability density function (PDF) of distance between two points in the reconstructed phase space of R-R intervals of normal sinus rhythm (NSR) and AF is studied. It is found that the distribution of PDF between NSR and AF R-R intervals is significantly different; and based on this finding, a characteristic parameter k is defined. k is used for defection among 400 NSR and 400 AF R-R intervals. The results demonstrate that the new algorithm has fast responding speed and high detecting precision (average sensitivity 97.0%, average specificity 95.2%).
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