Biomedical signal and introduction

1. Biomedical Signals and Their
Types
An Introduction to Biomedical Signal
Processing
Presented by: [Your Name]
Date: [Date]

2. Introduction to Biomedical Signals
• Definition: Biomedical signals are electrical or
non-electrical signals generated by biological
activities.
• Purpose: Used in diagnosis, monitoring, and
treatment of diseases.
• Sources: Human body, typically from muscles,
brain, heart, etc.

3. Classification of Biomedical Signals
• Electrical signals (measured by electrodes)
• Non-electrical signals (measured through
other sensors)
• Types by origin:
• - Bioelectric
• - Biomagnetic
• - Biochemical
• - Biomechanical
• - Bioacoustic

4. Bioelectric Signals
• Definition: Electrical activity produced by
tissues such as nerves and muscles.
• Examples:
• - ECG (Electrocardiogram) – Heart activity
• - EEG (Electroencephalogram) – Brain activity
• - EMG (Electromyogram) – Muscle activity
• - EOG (Electrooculogram) – Eye movements

5. Biomagnetic Signals
• Definition: Magnetic fields generated by the
body’s organs.
• Examples:
• - MEG (Magnetoencephalogram) – Brain
magnetic activity
• - MCG (Magnetocardiogram) – Magnetic heart
signals

6. Biochemical Signals
• Definition: Signals related to the concentration
of substances in the body.
• Examples:
• - Blood glucose levels
• - Hormone levels
• - pH levels in body fluids

7. Biomechanical Signals
• Definition: Mechanical functions of the body.
• Examples:
• - Blood pressure
• - Respiration rate
• - Body temperature
• - Joint angle movements

8. Bioacoustic Signals
• Definition: Sounds generated within the body.
• Examples:
• - Heart sounds (phonocardiogram)
• - Lung sounds
• - Bowel sounds

9. Bio-optical Signals
• Definition: Signals detected using light-based
technologies.
• Examples:
• - Pulse oximetry
• - Retinal imaging
• - Optical coherence tomography

10. Summary
• Biomedical signals are vital in modern
healthcare.
• They are categorized based on their physical
and biological origin.
• Understanding their types aids in proper
diagnosis and monitoring.

11. References / Q&A
• Add references (textbooks, articles, etc.)
• Open the floor for questions