Multiecho, spin-echo sequence to eliminate unwanted echoes.
Two types of artifacts--a mirror-reversed image about the phase-encode direction and a wave-like intensity variation across the image--may appear when using a conventional multiecho spin-echo sequence. We describe and demonstrate a new method, which eliminates such artifacts, using only one excitation per phase-encoding step and without the need for spoiler gradients.
Zur
Y
Y
Francis Bitter National Magnet Laboratory, Massachusetts Institute of Technology, Cambridge 02139.
Zou
X
X
Neuringer
L J
LJ
D055590:Electromagnetic Phenomena; D004582:Electronics, Medical; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*