Intracerebral lesion contrast with spin-echo and fast spin-echo pulse sequences.
Fast spin-echo (FSE) magnetic resonance (MR) imaging was compared with conventional, peripherally gated T2-weighted spin-echo (SE) imaging in the detection of high- and low-signal-intensity lesions in the central nervous system. Lesion detectability was determined with percentage of contrast measurements and contrast-to-noise ratios with two different measurements for noise. All three measures of lesion detectability were similar. FSE and SE sequences were quantitatively equivalent in the detection of high-signal-intensity lesions. The SE sequence, however, was superior to the FSE sequence in the detection of small, low-signal-intensity lesions in the central nervous system caused by magnetic susceptibility effects.
Norbash
A M
AM
Department of Radiology, Stanford University School of Medicine, CA 94305-5105.
Glover
G H
GH
Enzmann
D R
DR
D000293:Adolescent; D000328:Adult; D000368:Aged; D001927:Brain Diseases / Q000175:diagnosis*; D002648:Child; D002675:Child, Preschool; D017352:Echo-Planar Imaging; D005260:Female; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies