What is a cardio gram?
An electrocardiogram (EKG) test is a simple, painless procedure that measures electrical signals in your heart. Each time your heart beats, an electrical signal travels through the heart. An EKG can show if your heart is beating at a normal rate and strength.
What is vectorial analysis of ECG?
Vectorcardiography (VCG) is a method of recording the magnitude and direction of the electrical forces that are generated by the heart by means of a continuous series of vectors that form curving lines around a central point.
What is VCG and ECG?
Introduction. Electrocardiography (ECG) is currently the most widely used method of sensing electrical activity in the human heart. Vectorcardiography (VCG) is an investigation method that was previously compared to ECG several times and was evaluated as a useful investigation method [1,2,3].
What is an ECG Wikipedia?
An electrocardiogram (ECG or EKG) is a record of the electrical activity of the heart over a period of time. The instrument that makes the record is the ECG machine or Electrocardiograph. Willem Einthoven invented it. It works by attaching electrodes to the outer surface of the skin.
What is meant by vector analysis?
vector analysis, a branch of mathematics that deals with quantities that have both magnitude and direction. Some physical and geometric quantities, called scalars, can be fully defined by specifying their magnitude in suitable units of measure. Velocity, force, and displacement are examples of vectors.
What is cardio vector?
The activity of the heart can be approximately modeled by an electric dipole, also called the cardiac vector. The magnitude and orientation of the dipole characterize the current state of the heart along the cardiac cycle.
How many vectors are in an ECG?
Along the ECG tracing, distinct waves are connected by the “isoelectric line” of near 0 mV, the assumed point of origin of all three wave vectors.
What are the 12 leads of ECG?
The standard EKG leads are denoted as lead I, II, III, aVF, aVR, aVL, V1, V2, V3, V4, V5, V6. Leads I, II, III, aVR, aVL, aVF are denoted the limb leads while the V1, V2, V3, V4, V5, and V6 are precordial leads.