Physics and imaging technology: ultrasound

Knowledge of the physics and imaging technology involved in the production of ultrasound (US) scans is vitally important for medical imaging specialists.

See also

• physics and imaging technology: x-ray
• physics and imaging technology: ultrasound
• physics and imaging technology: CT
• physics and imaging technology: MRI
• physics and imaging technology: nuclear medicine

Related Radiopaedia articles

Physics and imaging technology: ultrasound

• ultrasound (introduction)
• ultrasound physics
  • basic physics
    • reflection
    • refraction
    • attenuation
    • scattering
    • absorption
    • acoustic impedance
    • decibel
    • hertz
  • transducers
    • ultrasound frequencies
    • piezoelectric effect
    • linear array
    • convex array
    • phased array
    • beam focusing
    • beam steering
    • gain
    • time gain compensation
    • power output
    • focal zone
    • dynamic range
    • frame rate
    • line density
    • frame averaging (frame persistence)
    • ultrasound image resolution
      • axial resolution
      • lateral resolution
      • elevational (azimuthal) resolution
      • temporal resolution
  • imaging modes and display
    • pulse-echo imaging
      • grey-scale imaging
      • time-gain compensation
      • harmonic imaging
    • real-time imaging
    • Doppler imaging
      • Doppler effect
      • color Doppler
      • power Doppler
      • B flow
      • color box
      • Doppler angle
      • pulse repetition frequency and scale
      • wall filter
      • color write priority
      • packet size (dwell time)
      • resistive index
      • pulsatility index
    • panoramic imaging
    • compound imaging
    • harmonic imaging
    • elastography
      • transient elastography
      • shear wave elastography
      • strain elastography
      • Young's modulus
    • scanning modes
      • 2D ultrasound
      • 3D ultrasound
      • 4D ultrasound
      • M-mode
  • ultrasound artifacts
    • acoustic shadowing
    • acoustic enhancement
    • beam width artifact
    • reverberation artifact
      • comet tail artifact
        • color comet tail artifact
    • ring down artifact
    • mirror image artifact
    • side lobe artifact
    • speed displacement artifact
    • refraction artifact
    • multipath artifact
    • anisotropy
    • electrical interference artifact
    • hardware-related artifacts
      • transducer
    • Doppler artifacts
      • aliasing
      • tissue vibration
      • spectral broadening
      • blooming
      • motion (flash) artifact
      • twinkling artifact
      • acoustic streaming
  • biological effects of ultrasound
    • mechanical index
    • thermal index
  • history of ultrasound