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A method of deriving central aortic systolic pressure and a method of analysing arterial waveform data to derive central aortic systolic pressure values

A central arterial pressure and central arterial technology, applied in the direction of cardiac catheterization, blood vessel assessment, etc., can solve problems such as reading errors in patients' central arterial pressure

Inactive Publication Date: 2009-04-29
HEALTHSTATS INT PTE
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Problems solved by technology

More importantly, the formula is based on correlation values ​​determined from measurements of the patient's cross-representation, and thus may lead to incorrect readings of the patient's central arterial pressure, which falls outside the range of the cross-representation sampling points

Method used

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  • A method of deriving central aortic systolic pressure and a method of analysing arterial waveform data to derive central aortic systolic pressure values
  • A method of deriving central aortic systolic pressure and a method of analysing arterial waveform data to derive central aortic systolic pressure values
  • A method of deriving central aortic systolic pressure and a method of analysing arterial waveform data to derive central aortic systolic pressure values

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no. 1 Embodiment

[0077] According to a first specific embodiment of the present invention, a method of determining central arterial pressure 10 is disclosed. exist figure 1 The method 10 is shown in flowchart form in .

[0078] like figure 1 As shown, method 10 begins by creating a combination of blood pressure measurements from the human body that represent arterial waveforms (step 12). The blood pressure measurement set has a predetermined number of measurements (n). At step 14, a predetermined number n is divided by a preset value (v) to determine an integer interval value (i). In this way, the integer interval value (i) can be obtained by an absolute value or a rounding function.

[0079] The following steps are then repeated starting from the first blood pressure measurement bp[(f)]:

[0080] Add the blood pressure measurements {bp[f], bp[f+1], bp[f+2], bp[f+3], ..., bp[f+i-1]} (step 16) get the value s;

[0081] Divide the sum s by the interval value i to obtain the mean blood pre...

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Abstract

A method of deriving central aortic systolic pressure comprising the steps of: a) creating a set having a predetermined number of blood pressure measurements, the set representative of an arterial waveform; b) determining an integer interval value; c) averaging a series of consecutive blood pressure measurement readings in the set equal to the integer interval value commencing from the fth blood pressure measurement in the set; d) storing the averaged value in a central aortic systolic pressure set; and e) setting the central aortic systolic pressure as the highest value in the central aortic pressure set, where steps c. and d. are repeated with the value of f being incremented by 1 each time until the value of f plus the integer interval value equals the predetermined number of blood pressure measurements in the set.

Description

technical field [0001] The present invention relates to a method of obtaining central arterial systolic blood pressure and a method of analyzing arterial waveform data to obtain central arterial systolic blood pressure values. According to the first method of the present invention, the present invention is particularly suitable for obtaining central arterial systolic pressure from an arterial waveform. However, according to a second method of the present invention, the present invention is adapted to analyze the arterial waveform data set to obtain a corresponding central arterial systolic blood pressure data set. Background technique [0002] The following discussion of the background of the invention is provided to assist in the understanding of the invention. It should be understood, however, that this discussion is not an admission that any material referred to herein was part of the public, known or common general knowledge under any judicial interpretation as of the p...

Claims

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Application Information

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IPC IPC(8): A61B5/021
Inventor 陈崇铭蔡岳辉
Owner HEALTHSTATS INT PTE
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