False Cerebral Activation on BOLD Functional MR Images: Study of Low-amplitude Motion Weakly Correlated to Stimulus

Movements of the participant during blood oxygen level-dependent (BOLD) functional MR imaging cerebral activation studies are known to produce occasionally regions of false activation, especially when these movements are relatively large (>3 mm) and highly correlated with the stimulus. We investi...

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Veröffentlicht in:	American journal of neuroradiology : AJNR 2000-09, Vol.21 (8), p.1388-1396
Hauptverfasser:	Field, Aaron S, Yen, Yi-Fen, Burdette, Jonathan H, Elster, Allen D
Format:	Artikel
Sprache:	eng
Schlagworte:	Biological and medical sciences Brain Brain - physiology False Positive Reactions Investigative techniques, diagnostic techniques (general aspects) Magnetic Resonance Imaging Medical sciences Motion Nervous system Oxygen - blood Phantoms, Imaging Radiodiagnosis. Nmr imagery. Nmr spectrometry
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