[Comparison of long-axis and short-axis PROPELLER-EPI for diffusion-weighted Magnetic Resonance Imaging].
Echo planar imaging (EPI) in combination with PROPELLER allows high-resolution diffusion-weighted imaging. In this study, the image quality of short-axis and long-axis PROPELLER was compared and optimized using phantom and in vivo data. Furthermore, diffusion-weighted measurements using both sequences were compared with those of a reference sequence. It was found that the long-axis sequence provided better image quality, whereas the results of the diffusion weighted measurements were more accurate with the short-axis variant. and that the results of the diffusion weighted measurements of both sequences agreed well with those of the reference sequence.
RoBbach
Matthias
M
Medical Physics Group, Department of Diagnostic and Interventional Radiology, Jena University Hospital, Philosophenweg, Jena, Germany.
Jochimsen
Thies H
TH
Herrmann
Karl-Heinz
KH
Ros
Christian
C
Güllmar
Daniel
D
Reichenbach
Jürgen R
JR
D016477:Artifacts; D001921:Brain / Q000473:pathology; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods*; D017352:Echo-Planar Imaging / Q000379:methods*; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D019047:Phantoms, Imaging; D010825:Physics; D012016:Reference Values; D012680:Sensitivity and Specificity; D012985:Software Design