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High-resolution in vivo CBV mapping with MRI in wild-type mice

✍ Scribed by Ed X. Wu; Kelvin K. Wong; Martin Andrassy; Haiying Tang


Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
657 KB
Volume
49
Category
Article
ISSN
0740-3194

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✦ Synopsis


Abstract

NMR microimaging has the potential to elucidate cerebrovascular abnormalities in mouse models. In this study, the relative regional cerebral blood volume (CBV) map is presented for C57BL6/J wild‐type mice. The CBV mapping was based on changes in the steady‐state NMR transverse relaxation rate (Δ__R__~2~) associated with the presence of a superparamagnetic intravascular contrast agent (MION) with a long blood halflife. The experiments were performed at 9.4 T at a voxel size of 100 μm × 100 μm × 600 μm. Fine details, such as the hippocampal and olfactory bulb area, were visualized in the CBV map. The relative regional CBV values of various brain regions were measured. The Δ__R__~2~ dosage dependency and MION tissue clearance in mouse are also reported. Magn Reson Med 49:765–770, 2003. © 2003 Wiley‐Liss, Inc.


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