On the feasibility of elastic wave visualization within polymeric solids using magnetic resonance elastography.
In this paper, the feasibility of extending previously described magnetic resonance elastography (MRE) dynamic displacement (and associated elasticity) measurement techniques, currently used successfully in tissue, to solid materials which have much higher shear rigidity and much lower nuclear spin densities, is considered. Based on these considerations, the MRE technique is modified in a straightforward manner and used to directly visualize shear wave displacements within two polymeric materials, one of which is relatively stiff.
Romano
Anthony J
AJ
Naval Research Laboratory, Washington, DC 20375, USA. romano@pa.nrl.navy.mil
Bucaro
Joseph A
JA
Houston
Brian H
BH
Kugel
Jennifer L
JL
Rossman
Phillip J
PJ
Grimm
Roger C
RC
Ehman
Richard L
RL
D000465:Algorithms; D002070:Butadienes / Q000737:chemistry; D004547:Elastic Tissue / Q000502:physiology*; D004548:Elasticity; D020724:Elastomers; D005782:Gels; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D019047:Phantoms, Imaging; D011108:Polymers / Q000737:chemistry; D011143:Polyvinyl Chloride / Q000737:chemistry; D012826:Silicone Elastomers / Q000737:chemistry; D014159:Transducers
D002070:Butadienes; D020724:Elastomers; D005782:Gels; D011108:Polymers; D012826:Silicone Elastomers; D011143:Polyvinyl Chloride; C028834:polybutadiene