发明名称 |
Method and apparatus for prediction of cardiac electrical instability by simultaneous assessment of T-wave alternans and QT interval dispersion |
摘要 |
A method and apparatus for predicting cardiac electrical instability simultaneously assesses T-Wave Alternans and QT Interval Dispersion. T-wave alternation is an excellent predictor of cardiac electrical instability but can be influenced by mechano-electrical coupling. Thus, a measure of alternation has a high degree of sensitivity but a low degree of specificity. The low specificity of alternation is addressed by simultaneously analyzing QT interval dispersion. Dispersion is not a measure of excitable stimulus and is not sensitive to mechano-electrical coupling. The resulting combination of alternans and dispersion yields an accurate predictor of cardiac electrical instability caused by intrinsic factors.
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申请公布号 |
US5560370(A) |
申请公布日期 |
1996.10.01 |
申请号 |
US19950450143 |
申请日期 |
1995.05.26 |
申请人 |
GEORGETOWN UNIVERSITY |
发明人 |
VERRIER, RICHARD L.;NEARING, BRUCE D. |
分类号 |
A61B5/0452;A61B5/046;G06F17/00;(IPC1-7):A61B5/468 |
主分类号 |
A61B5/0452 |
代理机构 |
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代理人 |
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地址 |
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