Microcomputer-based analysis of cardiovascular indices.

Microcomputer-based analysis of cardiovascular indices.
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基于微机的心血管指标分析。

DOI:
10.1016/0010-4825(92)90047-q
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发表时间:
1992
影响因子:
7.7
通讯作者:
Gean,JT
Gean,JT
中科院分区:
工程技术2区
文献类型:
--
作者:
Benedict,CR;Gayden,RH;Gean,JT

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本文介绍了一种能快速、准确地从装有仪器的动物或离体灌流心脏采集心血管数据的微机程序,并能同时分析和显示血流动力学指标。该系统允许在四个可选的图形显示中实时查看数据。其中包括:(1)所有通道的条形充电型显示;(2)任何单个通道的全屏显示;(3)压力分段长度的显示;以及(4)计算的血液动力学指标的趋势图(随时间的累积变化),例如心率、收缩压和舒张压、心肌段长度的百分比变化、平均血流量和动脉直径的百分比变化。可以对存储在硬盘上的任何数据段进行瞬态和稳态事件的精确分析。在实验中的任何点的数据可以通过在导出的指数的任何趋势图中进行光标移动、通过调用特殊事件标记或通过使用自动时间标记来访问。计算结果打印并存储在ASCII文件中,可以传输到电子表格,数据库,图形或统计程序。
A microcomputer-based program has been developed which performs rapid and accurate acquisition of cardiovascular data from instrumented animals or isolated perfused hearts with concurrent analysis and display of the hemodynamic indices. The system allows real-time viewing of the data in four alternative graphic displays. These include: (1) a strip-charge type display of all channels; (2) a full screen display of any single channel; (3) display of pressuresegment length; and (4) trend graphs (cumulative change with time) of calculated hemodynamic indices such as heart rate, systolic and diastolic blood pressure, percent change in myocardial segment length, mean blood flow and percent change in arterial diameter. Precise analysis of both transient and steady-state events may be performed on any segment of data stored on the hard disk. The data at any point in the experiment may be accessed by cursoring through any trend graph of the derived indices, by recalling special event markers or by using the automatic time markers. The calculated results are printed and stored in ASCII files which can be transferred to spreadsheets, databases, graphics or statistical programs.
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