de.mpg.escidoc.pubman.appbase.FacesBean
Deutsch
 
Hilfe Wegweiser Impressum Kontakt Einloggen
  DetailsucheBrowse

Datensatz

DATENSATZ AKTIONENEXPORT

Freigegeben

Zeitschriftenartikel

Are TrueFISP images T2/T1-weighted?

MPG-Autoren
http://pubman.mpdl.mpg.de/cone/persons/resource/persons84187

Huang I-J, Chen C-Y, Scheffler,  K
Department High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Max Planck Society;

Externe Ressourcen
Es sind keine Externen Ressourcen verfügbar
Volltexte (frei zugänglich)
Es sind keine frei zugänglichen Volltexte verfügbar
Ergänzendes Material (frei zugänglich)
Es sind keine frei zugänglichen Ergänzenden Materialien verfügbar
Zitation

Huang, T.-Y., Huang I-J, Chen C-Y, Scheffler, K., Chung, H.-W., & Cheng, H.-C. (2002). Are TrueFISP images T2/T1-weighted? Magnetic Resonance in Medicine, 48(4), 684-688. doi:10.1002/mrm.10260.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0013-DEDF-6
Zusammenfassung
Images acquired using the TrueFISP technique (true fast imaging with steady-state precession) are generally believed to exhibit T2/T1-weighting. In this study, it is demonstrated that with the widely used half-flip-angle preparation scheme, approaching the steady state requires a time length comparable to the scan time such that the transient-state response may dominate the TrueFISP image contrast. Two-dimensional images of the human brain were obtained using various phase-encoding matrices to investigate the transient-state signal behavior. Contrast between gray and white matter was found to change significantly from proton-density- to T2/T1-weighted as the phase-encoding matrix size increased, which was in good agreement with theoretical predictions. It is concluded that TrueFISP images in general exhibit T2/T1-contrast, but should be more appropriately regarded as exhibiting a transient-state combination of proton-density and T2/T1 contrast under particular imaging conditions. Interpretation of tissue characteristics from TrueFISP images in clinical practice thus needs to be exercised with caution.