Absorption (ultrasound)
In ultrasound, absorption is the reduction in intensity of the sound waves as it passes through tissue. Most of the energy lost is in the form of heat.
Related Radiopaedia articles
Physics and imaging technology: ultrasound
- ultrasound (introduction)
- ultrasound physics
- basic physics
- 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
- scanning modes
- 2D ultrasound
- 3D ultrasound
- 4D ultrasound
- M-mode
- pulse-echo imaging
- ultrasound artifacts
- acoustic shadowing
- acoustic enhancement
- beam width artifact
- reverberation artifact
- ring down artifact
- mirror image artifact
- side lobe artifact
- speed displacement artifact
- refraction artifact
- multipath artifact
- anisotropy
- electrical interference artifact
- hardware-related artifacts
- Doppler artifacts
- aliasing
- tissue vibration
- spectral broadening
- blooming
- motion (flash) artifact
- twinkling artifact
- acoustic streaming
- biological effects of ultrasound
- history of ultrasound
