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Steady state free precession magnetization transfer imaging

MPG-Autoren
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Scheffler,  K
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Zitation

Bieri, O., Mamisch TC, Trattnig, S., & Scheffler, K. (2008). Steady state free precession magnetization transfer imaging. Magnetic Resonance in Medicine, 60(5), 1261-1266. doi:10.1002/mrm.21781.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0013-C661-C
Zusammenfassung
The formerly proposed concept for magnetization transfer imaging (MTI) using balanced steady-state free precession (SSFP) image acquisitions is in this work extended to nonbalanced protocols. This allows SSFP-based MTI of targets with high susceptibility variation (such as the musculoskeletal system), or at ultra-high magnetic fields (where balanced SSFP suffers from considerable off-resonance related image degradations). In the first part, SSFP-based MTI in human brain is analyzed based on magnetization transfer ratio (MTR) histograms. High correlations are observed among all different SSFP MTI protocols and thereby ensure proper conceptual extension to nonbalanced SSFP. The second part demonstrates SSFP-based MTI allowing fast acquisition of high resolution volumetric MTR data from human brain and cartilage at low (1.5T) to ultra-high (7.0T) magnetic fields.