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ELECTROCARDIOGRAPHY

ELECTROCARDIOGRAPHY. OUTLINE. INTRODUCTION FUNCTIONAL BLOCK BLOCK DIAGRAM PRINCIPLE OF OPERATION THE NORMAL WAVEFORM ECG RECORDER RECORD PRINCIPLE CARDIAC VECTOR TYPES OF ECG RECORDER CONCLUSION. INTRODUCTION. WHY ELECTROCARDIOGRAPHY IS USED TO DIAGNOSE RHYTHEM DISTURBANCE

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ELECTROCARDIOGRAPHY

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  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

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