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. Author manuscript; available in PMC: 2012 May 1.
Published in final edited form as: J Magn Reson Imaging. 2011 May;33(5):1121–1127. doi: 10.1002/jmri.22534

Figure 2.

Figure 2

Sagittal images of a TKR produced by FSE (a), SEMAC (b), and MAVRIC (c) MRI pulse sequences in a volunteer who presented with knee pain at the time of scanning. The bone infarct (curved arrow) and presumed stress fracture (wedge-shaped arrow) are clearly seen on the SEMAC and particularly the MAVRIC images, but distortion obscures part of the fracture on the FSE image. The different apparent signal-to-noise ratios in these images can be attributed to the SEMAC image being combined using a linear, rather than a sum-of-squares, reconstruction.