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Electrocardiograph
1.
2.
Electric dipole is a pair of equal by value andopposite by sign electric charges centers of which are
situated not far from each other.
P l q
P Cos
k
2
r
3. ELECTRIC FIELD
Electric field is a kind of matter by means of which the charged objectsinteract with each other.
4.
5.
ECG6.
HISTORY OF BIOPOTENTIALSREVELATION. EINTHOVEN’S THEORY.
Willem
Einthoven
Dutch
physiologist.
Nobel prize
winner
(1924).
7.
HISTORY OF BIOPOTENTIALSREVELATION.
8. ELECTROCARDIOGRAPH
Electrocardiogram(ECG) – the graphic
record
of
electric
potential
difference
produced by the heart.
9. Normal ECG
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11. ECG Standard leads
Standard bipolar leads:1 – right hand-left hand;
2 – right hand-left leg;
3 – left hand left leg.
12.
13.
14. Einthoven’s Triangle
15. Cardiomyocyte potential & ECG
16. Heart Electrical Axis
17.
18. Holter
– ambulatory monitor of ECG &blood pressure. It collects & analyses
information during the day in order to find
possible abnormalities.
24 hours ECG monitoring