Echo Physics

 

Introduction

This section is designed to help you understand the basic principles of ultrasound physics and covers high-yield concepts to help you appreciate the principles behind how the echo machine transforms the information it receives from the transducer into the images we see displayed. Knowledge of these principles will also help you to troubleshoot situations when the information displayed is incompatible with physiologic or expected values, or when artifacts are suspected. If there is a topic you would like covered here, please email us.

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1. The Basics of Sound Waves

2. Fundamental Sound Wave Parameters To Know

3. Basics of Transducers and Transducer Construction

4. The Interaction of Sound with a Medium

5. Sound striking An Interface: Reflection, Transmission, and Refraction

6. Advanced Sound Wave and Physical Parameters To Know

7. The Doppler Shift Principle

8. Spectral Doppler: Pulsed Wave and Continuous Wave

9. Axial, Lateral and Temporal Resolution

10. Methods To Minimize Aliasing

11. Mechanical Index and Bioeffects

12. Common Two dimensional and Doppler Artifacts