Physical Principles of Ultrasound
Sound Waves
Rarefaction
Compression
Wavelength
Propagation Velocity
Amplitude
Frequency
Relationship between Wavelength, Frequency and Propagation
Penetration
Attenuation
Relationship to Wavelength
Resolution and Penetration Relationship
High Resolution/Shallow Penetration
Mixed
Low Resolution/Deep Penetration
Amplitude
Duplex Scan
Interaction of Ultrasound Waves with Tissue
Tissue Interactions
Reflection
Angle of Incidence
Acoustic Impedance Mismatch
Tissue Boundary Width
Tissue boundary Angle
Scattering
Hematocrit
Refraction
Attenuation
Imaging Modalities
Transducers
Modes
M Mode
2D Mode
Doppler
Pulse Wave Doppler
Continuous Wave Doppler
Color Flow Doppler
Maps