Quantitative method and apparatus for measuring QT intervals from ambulatory electrocardiographic recordings
First Claim
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1. A quantitative method of measuring a cardiac function interval, the method comprising:
- collecting, over an extended period of time, beat-to-beat data representative of a cardiac interval, each beat-to-beat data having a value, defining a plurality of bins, each one of the plurality of bins having a defined value range, organizing each of the collected data into one of the plurality of bins in accordance with the value of the data and the value range of the bin, and calculating a percentage of data in each bin based upon the quantity of data in each bin.
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Abstract
A quantitative method and apparatus for measuring a cardiac function interval. Beat-to-beat data representative of a cardiac interval is collected over an extended period of time. A series of bins, each of which has a defined value range, is defined. The collected data is organized into the bins in accordance with the value of the data and the value range of the bin. The percentage of data in each bin may be calculated based upon the quantity of data in each bin.
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Citations
15 Claims
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1. A quantitative method of measuring a cardiac function interval, the method comprising:
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collecting, over an extended period of time, beat-to-beat data representative of a cardiac interval, each beat-to-beat data having a value, defining a plurality of bins, each one of the plurality of bins having a defined value range, organizing each of the collected data into one of the plurality of bins in accordance with the value of the data and the value range of the bin, and calculating a percentage of data in each bin based upon the quantity of data in each bin. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A device for quantitatively measuring a cardiac function interval, the device comprising:
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means for collecting, over an extended period of time, beat-to-beat data representative of a cardiac interval, each beat-to-beat data having a value, means for defining a plurality of bins, each one of the plurality of bins having a defined value range, means for organizing each of the collected data into one of the plurality of bins in accordance with the value of the data and the value range of the bin, and means for calculating a percentage of data in each bin based upon the quantity of data in each bin. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method of measuring an effect of a pharmaceutical on a subject, comprising:
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providing a pharmaceutical to the subject, collecting, over an extended period of time, beat-to-beat data representative of a cardiac interval of the subject, each beat-to-beat data having a value, defining a plurality of bins, each one of the plurality of bins having a defined value range, organizing each of the collected data into one of the plurality of bins in accordance with the value of the data and the value range of the bin, and calculating a percentage of data in each bin based upon the quantity of data in each bin.
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14. A quantitative method of measuring a cardiac function interval, the method comprising:
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collecting, over an extended period of time, beat-to-beat data representative of a cardiac interval, each beat-to-beat data having a value, stratifying the collected data, based upon the value of the collected data, in accordance with a plurality of defined bins, each one of the plurality of bins having a defined value range, and calculating a percentage of data in each bin based upon the quantity of data in each bin.
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15. A device for quantitatively measuring a cardiac function interval, the device comprising:
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means for collecting, over an extended period of time, beat-to-beat data representative of a cardiac interval, each beat-to-beat data having a value, means for stratifying the collected data, based upon the value of the collected data, in accordance with a plurality of defined bins, each one of the plurality of bins having a defined value range, and means for calculating a percentage of data in each bin based upon the quantity of data in each bin.
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Specification