English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  A 3-Port Traveling-Wave Antenna in Combination with TIAMO for the Acquisition of Void-Free Brain Images at 9.4 Tesla

Hoffmann, J., Mirkes, C., Shajan, G., Scheffler, K., & Pohmann, R. (2014). A 3-Port Traveling-Wave Antenna in Combination with TIAMO for the Acquisition of Void-Free Brain Images at 9.4 Tesla. In Joint Annual Meeting ISMRM-ESMRMB 2014.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0001-33F0-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-3731-A
Genre: Meeting Abstract

Files

show Files

Locators

show
hide
Description:
-

Creators

show
hide
 Creators:
Hoffmann, Jens1, 2, Author              
Mirkes, C1, 2, Author              
Shajan, Gunamony1, 2, Author              
Scheffler, Klaus1, 2, Author              
Pohmann, R1, 2, Author              
Affiliations:
1Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497796              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

Content

show
hide
Free keywords: -
 Abstract: Three waveguide modes propagate in a 9.4 T whole-body scanner compared to only two modes at 7 T. While three modes are still insufficient to homogenize the B1 field across larger volumes, a time-interleaved acquisition of two complementary RF shims (TIAMO) and the subsequent sum-of-squares reconstruction of the single images is suitable to achieve whole-brain coverage without signal dropouts. Using simulations, we show that excitation inhomogeneity (max-to-min ratio) can be reduced by a factor of 2 (4) compared to CP mode. Finally, void-free whole-brain traveling-wave MRI at 9.4 T is demonstrated in vivo using a compact, adjustable 3-port antenna.

Details

show
hide
Language(s):
 Dates: 2014-05
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: BibTex Citekey: HoffmannMSSP2014
 Degree: -

Event

show
hide
Title: Joint Annual Meeting ISMRM-ESMRMB 2014
Place of Event: Milano, Italy
Start-/End Date: -

Legal Case

show

Project information

show

Source 1

show
hide
Title: Joint Annual Meeting ISMRM-ESMRMB 2014
Source Genre: Proceedings
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: - Sequence Number: 0399 Start / End Page: - Identifier: -