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    • 1 Foundations >
      • 1.1 Dimensions and units
      • 1.2 Mathematic skills
      • 1.3 Graphing
      • 1.4 Vectors
      • 1.5 Vectors in 3D
    • 2 Mechanics >
      • 2.1 Kinematics 1D >
        • 2.1.1 Kinematics Intro
        • 2.1.2 Acceleration
        • 2.1.3 Graphing Motion
        • 2.1.4 Equations of Motion
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        • 2.2.1 Relative Motion
        • 2.2.2 Projectile Motion
      • 2.3 Forces >
        • 2.3.1 Newton's Laws
        • 2.3.2 forces in equilibrium
        • 2.3.3 Normal
        • 2.3.4 Friction
        • 2.3.5 Forces and Pulleys
      • 2.4 Momentum and Energy >
        • 2.4.1 Momentum
        • 2.4.2 Energy
      • 2.5 Rotational Mechanics >
        • 2.5.1 Circular Motion
        • 2.5.2 Angular Velocity
        • 2.5.3 Circular applications
        • 2.5.4 Moment of Inertia
        • 2.5.5 Torque
      • 2.6 Gravity >
        • 2.6.1 Gravitation
        • 2.6.2 Orbital Motion
        • 2.6.3 Kepler's Laws
        • 2.6.4 Gravitation and Energy
    • 3 Waves and Optics >
      • 3.1 Wave Phenomena >
        • 3.1.1 Wave Types
        • 3.1.2 Superposition
        • 3.1.3 Interference
        • 3.1.4 Inverse Square Law
        • 3.1.5 Modulation
      • 3.2 Sound >
        • 3.2.1 Beats
        • 3.2.2 Doppler
        • 3.2.3 Resonance
        • 3.2.4 Standing Waves
      • 3.3 Physical Optics >
        • 3.3.1 Light - a history
        • 3.3.2 Double Slit Diffraction
        • 3.3.3 Light - its speed
        • 3.3.4 Light as EMR
        • 3.3.5 Polarisation
        • 3.3.6 Spectroscopy
        • 3.3.7 Scattering
      • 3.4 Geometric Optics >
        • 3.4.1 Reflection
        • 3.4.2 Refraction
        • 3.4.3 Lenses and Images
        • 3.4.4 Dispersion
    • 4 Thermodynamics >
      • 4.1 Heat and Temperature
      • 4.2 Specific Heat Capacity
      • 4.3 Latent Heat
      • 4.4 Blackbody Radiation
    • 5 Electricity and Magnetism >
      • 5.1 Electrostatics >
        • 5.1.1 Charge
        • 5.1.2 Coulomb's Law
        • 5.1.3 Electric Field
        • 5.1.4 Voltage
      • 5.2 Circuits >
        • 5.2.1 Ohm's Law
        • 5.2.2 Series and Parallel Circuits
        • 5.2.3 Electrical Power
      • 5.3 Electromagnetism >
        • 5.3.1 Moving Charges in Electric Fields
        • 5.3.2 Ampere's Law
        • 5.3.3 Charge in Magnetic Fields
        • 5.3.4 Motor Effect
        • 5.3.5 DC Motor
      • 5.4 Electromagnetic Induction >
        • 5.4.1 Magnetic Flux
        • 5.4.2 Faraday's Law
        • 5.4.3 Lenz' Law
        • 5.4.4 Back EMF
        • 5.4.5 Generators
        • 5.4.6 Transformers
        • 5.4.7 Induction Motors
    • 6 Modern Physics >
      • 6.1 Relativity >
        • 6.1.1 Michelson Morley Experiment
        • 6.1.2 Special Relativity
        • 6.1.3 Special Relativity Evidence
      • 6.2 Atomic Physics >
        • 6.2.1 JJ Thomson and the electron
        • 6.2.2 Millikan
        • 6.2.3 Rutherford
        • 6.2.4 Chadwick
      • 6.3 Radioactivity >
        • 6.3.1 What is Radioactivity
        • 6.3.2 Half Life
        • 6.3.3 Binding Energy
        • 6.3.4 Strong Nuclear Force
        • 6.3.5 Fission
        • 6.3.6 Fusion
      • 6.4 Quantum Physics >
        • 6.4.1 Planck and the Blackbody
        • 6.4.2 Photoelectric Effect
        • 6.4.3 Bohr Model
        • 6.4.4 de Broglie and Matter Waves
        • 6.4.5 Compton Effect
        • 6.4.6 Schrödinger Equation
        • 6.4.7 Heisenberg
        • 6.4.8 Lasers
      • 6.4 Particle Physics
      • 6.5 Solid State Physics
    • 7 Astrophysics >
      • 7.1 Olber's Paradox
      • 7.2 Stellar Spectroscopy
      • 7.3 Determining Stellar Distances
      • 7.4 Star Magnitude
      • 7.5 Star Temperature
      • 7..6 HR Diagram
    • 8 Medical Physics >
      • 8.1 Ultrasound
      • 8.2 X-ray
      • 8.3 PET scans
      • 8.4 MRI
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Ultrasound

Work in progress
PREVIOUS LESSON                                                                                                                       NEXT LESSON
Many medical imaging techniques are based on underlying physics principles, from classical physics to modern physics concepts such as quantum mechanics. Here is a number you may know of.

Ultrasound

Using very high frequency sound waves,  ultrasound has the ability to safely examine soft tissue 

An intro to ultrasound (sonograms) and the underlying factor (acoustic impedance) that determines how an image is formed.
 

​2. Piezzoelectric effect


How do ultrasound generate and pick up frequencies that are up to 2-3 MHz?

 

​3. The ultrasound A scan

Reviews how an A amplitude (A) scan is produced in the context of ultrasound/sonograms
​

 

4. The B scan

Reviews how an A brightness (B) scan is produced in the context of ultrasound/sonograms
​
 

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  • Home
  • Lessons
    • 1 Foundations >
      • 1.1 Dimensions and units
      • 1.2 Mathematic skills
      • 1.3 Graphing
      • 1.4 Vectors
      • 1.5 Vectors in 3D
    • 2 Mechanics >
      • 2.1 Kinematics 1D >
        • 2.1.1 Kinematics Intro
        • 2.1.2 Acceleration
        • 2.1.3 Graphing Motion
        • 2.1.4 Equations of Motion
      • 2.2 Kinematics 2D >
        • 2.2.1 Relative Motion
        • 2.2.2 Projectile Motion
      • 2.3 Forces >
        • 2.3.1 Newton's Laws
        • 2.3.2 forces in equilibrium
        • 2.3.3 Normal
        • 2.3.4 Friction
        • 2.3.5 Forces and Pulleys
      • 2.4 Momentum and Energy >
        • 2.4.1 Momentum
        • 2.4.2 Energy
      • 2.5 Rotational Mechanics >
        • 2.5.1 Circular Motion
        • 2.5.2 Angular Velocity
        • 2.5.3 Circular applications
        • 2.5.4 Moment of Inertia
        • 2.5.5 Torque
      • 2.6 Gravity >
        • 2.6.1 Gravitation
        • 2.6.2 Orbital Motion
        • 2.6.3 Kepler's Laws
        • 2.6.4 Gravitation and Energy
    • 3 Waves and Optics >
      • 3.1 Wave Phenomena >
        • 3.1.1 Wave Types
        • 3.1.2 Superposition
        • 3.1.3 Interference
        • 3.1.4 Inverse Square Law
        • 3.1.5 Modulation
      • 3.2 Sound >
        • 3.2.1 Beats
        • 3.2.2 Doppler
        • 3.2.3 Resonance
        • 3.2.4 Standing Waves
      • 3.3 Physical Optics >
        • 3.3.1 Light - a history
        • 3.3.2 Double Slit Diffraction
        • 3.3.3 Light - its speed
        • 3.3.4 Light as EMR
        • 3.3.5 Polarisation
        • 3.3.6 Spectroscopy
        • 3.3.7 Scattering
      • 3.4 Geometric Optics >
        • 3.4.1 Reflection
        • 3.4.2 Refraction
        • 3.4.3 Lenses and Images
        • 3.4.4 Dispersion
    • 4 Thermodynamics >
      • 4.1 Heat and Temperature
      • 4.2 Specific Heat Capacity
      • 4.3 Latent Heat
      • 4.4 Blackbody Radiation
    • 5 Electricity and Magnetism >
      • 5.1 Electrostatics >
        • 5.1.1 Charge
        • 5.1.2 Coulomb's Law
        • 5.1.3 Electric Field
        • 5.1.4 Voltage
      • 5.2 Circuits >
        • 5.2.1 Ohm's Law
        • 5.2.2 Series and Parallel Circuits
        • 5.2.3 Electrical Power
      • 5.3 Electromagnetism >
        • 5.3.1 Moving Charges in Electric Fields
        • 5.3.2 Ampere's Law
        • 5.3.3 Charge in Magnetic Fields
        • 5.3.4 Motor Effect
        • 5.3.5 DC Motor
      • 5.4 Electromagnetic Induction >
        • 5.4.1 Magnetic Flux
        • 5.4.2 Faraday's Law
        • 5.4.3 Lenz' Law
        • 5.4.4 Back EMF
        • 5.4.5 Generators
        • 5.4.6 Transformers
        • 5.4.7 Induction Motors
    • 6 Modern Physics >
      • 6.1 Relativity >
        • 6.1.1 Michelson Morley Experiment
        • 6.1.2 Special Relativity
        • 6.1.3 Special Relativity Evidence
      • 6.2 Atomic Physics >
        • 6.2.1 JJ Thomson and the electron
        • 6.2.2 Millikan
        • 6.2.3 Rutherford
        • 6.2.4 Chadwick
      • 6.3 Radioactivity >
        • 6.3.1 What is Radioactivity
        • 6.3.2 Half Life
        • 6.3.3 Binding Energy
        • 6.3.4 Strong Nuclear Force
        • 6.3.5 Fission
        • 6.3.6 Fusion
      • 6.4 Quantum Physics >
        • 6.4.1 Planck and the Blackbody
        • 6.4.2 Photoelectric Effect
        • 6.4.3 Bohr Model
        • 6.4.4 de Broglie and Matter Waves
        • 6.4.5 Compton Effect
        • 6.4.6 Schrödinger Equation
        • 6.4.7 Heisenberg
        • 6.4.8 Lasers
      • 6.4 Particle Physics
      • 6.5 Solid State Physics
    • 7 Astrophysics >
      • 7.1 Olber's Paradox
      • 7.2 Stellar Spectroscopy
      • 7.3 Determining Stellar Distances
      • 7.4 Star Magnitude
      • 7.5 Star Temperature
      • 7..6 HR Diagram
    • 8 Medical Physics >
      • 8.1 Ultrasound
      • 8.2 X-ray
      • 8.3 PET scans
      • 8.4 MRI
  • curriculum specific
    • NSW >
      • NSW curriculum >
        • Year 11
        • Year 12
      • HSC question per Module
      • HSC Exam review >
        • Downloads/notes
    • QLD curriculum
    • IB curriculum
    • SAT curriculum
    • AP Physics 1&2 curriculum
  • Resources
    • Review videos
    • Shorts
    • Formula Sheet
    • tools >
      • Calculator
      • Oscilloscope
    • data sheet
    • for students >
      • recommended physics sites
      • Review and Tips
    • for teachers
    • Blogs >
      • Podcasts
      • PhysicsHigh blog
    • About >
      • Who am I
      • FAQ
      • Fun
      • Contact