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electrocardiology

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electrocardiography outline introduction functional block block diagram principle of operation the normal waveform ecg recorder record principle cardiac vector types ... – PowerPoint PPT presentation

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Title: electrocardiology


1
ELECTROCARDIOGRAPHY
2
OUTLINE
  • INTRODUCTION
  • FUNCTIONAL BLOCK
  • BLOCK DIAGRAM
  • PRINCIPLE OF OPERATION
  • THE NORMAL WAVEFORM
  • ECG RECORDER
  • RECORD PRINCIPLE
  • CARDIAC VECTOR
  • TYPES OF ECG RECORDER
  • CONCLUSION

3
INTRODUCTION
  • WHY ELECTROCARDIOGRAPHY IS USED
  • TO DIAGNOSE
  • RHYTHEM DISTURBANCE
  • CONDUCTION ABNORMALITIES
  • HYPERYROPHY
  • METABOLIC EFFECT
  • ISCHEMIC HEART DISEASE

4
FUNCTIONAL BLOCKS
  • VARIOUS FUNCTIONAL BLOCKS ARE
  • PROTECTION CIRCUIT
  • LEAD SELECTOR
  • CALIBRATION SIGNAL
  • PREAMPLIFIER
  • ISOLATION CIRCUIT
  • DRIVEN RIGHT LEG CIRCUIT
  • DRIVER AMPLIFIER

5
FUNCTIONAL BLOCK DIAGRAM
6
PRINCIPLE OF OPERATION
  • TWO IMPORTANT ASPECT
  • THE CARDIAC CYCLE
  • ECG TRACEING

7
THE NORMAL WAVEFORM
  • SOME KEY TERMS
  • ACTION POTENTIAL
  • BASE LINE
  • DEPOLARIZATION
  • POLARIZATION
  • P- WAVE
  • PR- INTERVAL
  • QRS-COMPLEX
  • REFRACTORY PERIOD
  • T WAVE REPOLARIZATION

8
HEARTBEAT AS A WAVEFORM
9
ECG RECORDER
  • TO RECORD AN ELECTROCARDIOGRAM TWO MAIN
    COMPONENTS ARE USED
  • ELECTRODES
  • LEADS
  • ECG LEAD CONFIGURATION

10
ECG RECORDER PRINCIPLE
  • DIGM

11
CARDIAC VECTOR
  • EITHOVEN TRINGLE

12
TYPES OF ECG RECORDER
  • SINGLE CHANNEL RECORDER
  • THREE CHANNEL RECORDER
  • VECTOR ELECTRO CARDIOGRAPH
  • ELECTROCARDIOGRAPH SYSTEM FOR STRESS TESTING

13
CONCLUSION
  • ELECTROCARDIOGRAPHY IS REQUIRED TO
  • DETECT THE
    1.ABNORMAL WAVE MORPHOLOGY AND 2.THE ABNORMAL
    RYTHEM DETECTION
  • IT IS ONE OF THE MOST FREQUENTLY USED DEVICE IN
    MEDICAL SCIENCE.

14

THANK YOU
15
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