The quality of lower-limb prosthetic socket fit is influenced by shape and volume consistency during the residual limb shape-capturing process (i.e., casting). Casting can be quantified with magnetic resonance imaging (MRI) technology. We investigated the repeatability of MRI, the chemical shift artifact, and image distortion of seven different commonly used prosthetic materials in MRI images. The results show that MRI is an accurate and repeatable method for dimensional measurement when using matter containing water. Additionally, silicone and plaster of paris plus 1 g/L copper sulfate do not show a significant shape distortion or interfere with the MRI image of the residual limb.
Volume 50 Number 1, 2013
Pages 31 — 42
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Last Reviewed or Updated Monday, March 11, 2013 1:55 PM