Satoru Morita    Department   School of Medicine(Tokyo Women's Medical University Hospital), School of Medicine    Position   Assistant Professor
Article types	Original article
Language	English
Peer review	Peer reviewed
Title	Aliasing artifacts with the BLADE technique: causes and effective suppression
Journal	Formal name：J Magn Reson Imaging ISSN code：1522-2586
Volume, Issue, Page	33(2),pp.432-40
Author and coauthor	Kojima, S., Morita, S., Ueno, E., Hirata, M., Shinohara, H., Komori, A.
Authorship	2nd author
Publication date	2011
Summary	To elucidate the causes of aliasing artifacts with the BLADE technique and clarify the effective suppression methods.|We separately observed the aliasing artifacts of BLADE from features inside and then outside the defined field-of-view (FOV) using phantom studies. The effectiveness of suppressing them with phase oversampling (POS) and presaturation pulses (SAT) was evaluated. Finally, our observations were confirmed for a healthy volunteer.|Characteristic aliasing artifacts were observed from both inside and outside the FOV. Those from inside the FOV were sufficiently suppressed by using a POS of 25%, considering the acquisition time prolongation. Those from outside the FOV were nearly suppressed using SAT outside the FOV without selecting needless receiver coils. Aliasing artifacts on the coronal images of the head and neck with a healthy volunteer were completely suppressed by a combination of using a POS of 25% and using SAT on all four sides outside the FOV.|The characteristic aliasing artifacts of BLADE are caused from both inside and outside the defined FOV. They can be effectively suppressed by a combination of using a POS of 25% and using SAT on all four sides outside the FOV.
DOI	10.1002/jmri.22465
Document No.	21274986