Method and apparatus for frank lead reconstruction from derived chest leads

A technique of chest leads and leads, applied in the field of electrophysiology, which can solve the problems of using limb leads that do not provide sampling

Inactive Publication Date: 2002-10-30
SIEMENS MEDICAL SOLUTIONS USA INC
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Problems solved by technology

Unfortunately, existing work does not provide for the use of sampled limb leads

Method used

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  • Method and apparatus for frank lead reconstruction from derived chest leads
  • Method and apparatus for frank lead reconstruction from derived chest leads
  • Method and apparatus for frank lead reconstruction from derived chest leads

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Experimental program
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Embodiment Construction

[0061] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0062] see image 3 , the limb lead electrodes RA, LA, RL and LL are placed on the actual limb lead positions of the patient 10 . Chest electrodes V1 , V2 , V3 , V4 , V5 and V6 are placed at Frank's plate positions I , E , C , A , M and H on the patient 10 , respectively. The composition of Frank electrode F will be calculated algebraically by the following formula

[0063] F=((2×Lead II)−(Lead I)) / 3.

[0064] A Siemens SC7000 bedside monitor 12 was used to receive the signals detected by the electrodes 14 . The signal processor 16 inside the monitor 12 includes an SMS-lead to X, Y, Z signal conversion processing step 16a, which processes the lead electrode signal according to the following linear equation:

[0065] X=0.610*V4+0.171*V3-0.781*V1 (Formula 4)

[0066] Y=0.437*II-0.218*I+0.345*V5-1.000*V6 (Formula 5)

[0067] Z=0.133*V4+0.736*V5-0.264*V1-0.374*V2-0.231*V3 (Formula 6)

[0068] exist Figure 4 , Table ...

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Abstract

In one type of ECG monitoring and analysis system, electrodes are placed on the human body to detect the electrical activity of the heart, and the electrodes are arranged in such a way that FrankX, Y, and Z leads can be formed according to the detected electrical activity. An ECG signal conversion network for providing FrankX, Y, Z leads, including an input terminal, which only performs a set of input signals corresponding to the induced chest leads dV1, dV2, dV3, dV4, dV5 and dV6 In response, a memory for storing transformation matrix coefficients and an output terminal for providing an output signal corresponding to the application of said transformation matrix coefficients to said input signal, said output signal corresponding to said Frank X, Y and Z derivatives couplet. The present invention reduces the bandwidth requirements of the ECG signal communication network and reduces the complexity of the processing required to construct the Frank leads.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Application Serial No. 60156606, filed September 29, 1999. technical field [0003] The present invention relates to electrophysiology, in particular to an ECG monitoring and analysis system that uses a simplified set of derived chest leads to provide Frank X, Y, Z lead signals representing human heart electrical activity. Background of the invention [0004] Over the past 60 years, various diagnostic methods have been developed to detect and analyze the electrical activity of the human heart, including: (a) electrocardiography, (b) vectorcardiography, and (c) polarocardiography Polarcardiography, all of these methods are based on related devices for recording the electrical potential generated by the heart, which is detected by electrodes placed on the surface of the body. [0005] The records thus produced are graphical and need to be interpreted and analyzed as resulting infor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/308
CPCA61B5/341A61B5/30
Inventor W·J·墨累
Owner SIEMENS MEDICAL SOLUTIONS USA INC
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