Skip to main content
. Author manuscript; available in PMC: 2011 Jan 26.
Published in final edited form as: Magn Reson Med. 2009 Dec;62(6):1457–1465. doi: 10.1002/mrm.22091

Figure 6.

Figure 6

(a) An elastogram of the inclusion phantom using 60-Hz shear wave data. The inclusion is detected to be stiffer than the surrounding gel, but its stiffness is significantly underestimated. (b) An elastogram obtained using the 750-Hz mode-conversion MRE data, with a wave amplitude mask indicating the regions where the stiffness values could not be trusted. The soft gel is erroneously reported as very stiff throughout much of the phantom, reasonable stiffness values are obtained close to the inclusion boundary. The stiffness reported for the stiff inclusion is much closer to the predicted value due to the shorter wavelengths of the waves at this frequency.