Meeting Banner
Abstract #1712

Assessment of dynamic shear strain in the brain caused by mechanical transients using multi-scale MR elastography

Yuan Le1, Jun Chen1, Yi Sui1, Phillip J. Rossman1, Armando Manduca1, Kevin J. Glaser1, John Huston III1, Richard L. Ehman1, and Ziying Yin1
1Radiology, Mayo Clinic, Rochester, MN, United States

Synopsis

Keywords: Traumatic brain injury, Traumatic brain injury, Motion encoding gradient, transient motionTo study how the human brain moves and deforms under a sub-injury level transient impact, we tested the feasibility of measuring in-vivo brain transient motion resulting from a small amplitude impact using the multi-scale MR Elastography technique. Transient motion was encoded by wavelet-based motion encoding gradients at two wavelet scales plus a scaling function, and displacement was calculated using the inverse Haar transform. Brain motion over a wide frequency range was detected and was found to be consistent with previous results from a much higher impact.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.

Keywords