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  2. File:ECG Paper v2.svg - Wikipedia

    en.wikipedia.org/wiki/File:ECG_Paper_v2.svg

    Printable version; Page information; ... Diagram of electrocardiogram paper: Date: 12 May 2007: ... ECG paper whose 1x1 mm squares measure 0.1 mV on the Y-axis and 0. ...

  3. Electrocardiography - Wikipedia

    en.wikipedia.org/wiki/Electrocardiography

    Electrocardiography is the process of producing an electrocardiogram (ECG or EKG [a]), a recording of the heart's electrical activity through repeated cardiac cycles. [4] It is an electrogram of the heart which is a graph of voltage versus time of the electrical activity of the heart [ 5 ] using electrodes placed on the skin.

  4. ST segment - Wikipedia

    en.wikipedia.org/wiki/ST_segment

    Schematic representation of normal ECG In electrocardiography , the ST segment connects the QRS complex and the T wave and has a duration of 0.005 to 0.150 sec (5 to 150 ms). It starts at the J point (junction between the QRS complex and ST segment) and ends at the beginning of the T wave.

  5. Cardiac electrophysiology - Wikipedia

    en.wikipedia.org/wiki/Cardiac_electrophysiology

    Drawing of the ECG, with labels of intervals. Cardiac electrophysiology is a branch of cardiology and basic science focusing on the electrical activities of the heart.The term is usually used in clinical context, to describe studies of such phenomena by invasive (intracardiac) catheter recording of spontaneous activity as well as of cardiac responses to programmed electrical stimulation ...

  6. Cardiac cycle - Wikipedia

    en.wikipedia.org/wiki/Cardiac_cycle

    A Wiggers diagram illustrate events and details of the cardiac cycle with electrographic trace lines, which depict (vertical) changes in a parameter's value as time elapses left-to-right. [2] The ventricular "diastole", or relaxation, begins with "isovolumic relaxation", then proceeds through three sub-stages of inflow, namely: "rapid inflow ...

  7. Hexaxial reference system - Wikipedia

    en.wikipedia.org/wiki/Hexaxial_reference_system

    The hexaxial reference system is a diagram that is used to determine the heart's electrical axis in the frontal plane. The hexaxial reference system, better known as the Cabrera system, is a convention to present the extremity leads of the 12 lead electrocardiogram, [1] that provides an illustrative logical sequence that helps interpretation of the ECG, especially to determine the heart's ...

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    mail.aol.com

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  9. Forward problem of electrocardiology - Wikipedia

    en.wikipedia.org/wiki/Forward_problem_of_electro...

    Simulation of a realistic heart beat. Schematic diagram of normal sinus rhythm for a human heart as seen on ECG. The forward problem of electrocardiology is a computational and mathematical approach to study the electrical activity of the heart through the body surface. [1]