Abstract #1133

Towards single-shot 3D MR elastography: Application to intrinsically activated motion fields in the human brain.

Sebastian Hirsch¹, Rüdiger Stirnberg², Tony Stöcker^2,3, Florian Dittmann⁴, Jing Guo⁴, Eric Barnhill¹, Jürgen Braun¹, and Ingolf Sack⁴

¹Department of Medical Informatics, Charité - Universitätsmedizin Berlin, Berlin, Germany, ²German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany, ³Department of Physics and Astronomy, University of Bonn, Germany, ⁴Department of Radiology, Charité - Universitätsmedizin Berlin, Berlin, Germany

This study introduces a single-shot 3D EPI sequence for rapid motion field acquisition. The method can be applied for MRE under pulsatile motion or for directly analyzing intrinsic motion fields in pulsatile organs such as the brain. Through 3D k-space sampling, inter-slice phase offset artifacts, which essentially result from 2D k-space MRE, are most effectively avoided. In a first application we used the new method for the measurement of intrinsic brain pulsation in the human brain and analyzed the intensity of deflection field components by stochastic sampling at rest and during Valsalva maneuver.

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.