Acoustic radiation force
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Acoustic radiation force
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Acoustic radiation force is a physical phenomenon resulting from the interaction of an acoustic wave with an obstacle placed along its path. Generally, the force exerted on the obstacle is evaluated by integrating the acoustic radiation pressure (due to the presence of the sonic wave) over its time-varying surface.
Medical imaging applications
Acoustic radiation force is currently being utilized in medical ultrasonic imaging to generate images based on the mechanical properties; Acoustic Radiation Force Impulse (ARFI) Imaging is one such modality.[1] Other modalities include Shearwave Dispersion Ultrasound Vibrometry,[2] Harmonic Motion Imaging (HMI),[3] Supersonic Shear Imaging (SSI),[4] and Spatially Modulated Ultrasound Radiation Force (SMURF).[5]
References
- ^ Palmeri, M.L.; Wang, M.H.; Dahl, J.J.; Frinkley, K.D.; Nightingale, K.R. (2008). "Quantifying Hepatic Shear Modulus in Vivo Using Acoustic Radiation Force". Ultrasound in Medicine & Biology 34 (4): 546–58. doi:10.1016/j.ultrasmedbio.2007.10.009. . PMID 18222031. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=2362504.
- ^ http://mayoresearch.mayo.edu/ultrasound/shearwave.cfm
- ^ http://www.bme.columbia.edu/eekweb/research-hmi.html
- ^ Bercoff, J; Tanter, M; Fink, M (2004). "Supersonic shear imaging: A new technique for soft tissue elasticity mapping". IEEE transactions on ultrasonics, ferroelectrics, and frequency control 51 (4): 396–409. doi:10.1109/TUFFC.2004.1295425. PMID 15139541.
- ^ http://www.urmc.rochester.edu/bme/people/faculty/bio/project.cfm?id=246&projectId=116
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