## Abstract ## Purpose: To compare two magnetic resonance (MR) contrast mechanisms, __R__\*~2~ BOLD and balanced SSFP, for the dynamic monitoring of the cerebral response to (C)O~2~ respiratory challenges. ## Materials and Methods: Carbogen and CO~2~βenriched air were delivered to 9 healthy volu
β¦ LIBER β¦
Quantification of venous blood signal contribution to BOLD functional activation in the auditory cortex at 3 T
β Scribed by Sergio Casciaro; Roberto Bianco; Alessandro Distante
- Book ID
- 103840469
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 770 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0730-725X
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## Abstract We have measured the __T__~2~\* signal response associated with cortical activation due to finger motion at 1.5 Tesla. Both thin slice 2D and 3D images show signal intensity changes which vary from 2% to 32% depending on volunteer, echo time, slice thickness, and inβplane resolution. Th