High-resolution in vivo CBV mapping with MRI in wild-type mice.
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 (DeltaR(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 microm x 100 microm x 600 microm. 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 DeltaR(2) dosage dependency and MION tissue clearance in mouse are also reported.
Wu
Ed X
EX
Department of Radiology, College of Physicians and Surgeons, Columbia University, 710 West 168th Street, Unit 63, New York, NY 10032, USA. xew1@columbia.edu
Wong
Kelvin K
KK
Andrassy
Martin
M
Tang
Haiying
H
D000818:Animals; D001811:Blood Volume Determination; D001921:Brain / Q000033:anatomy & histology / Q000098:blood supply*; D002560:Cerebrovascular Circulation / Q000502:physiology*; D003287:Contrast Media; D008279:Magnetic Resonance Imaging / Q000379:methods*; D051379:Mice; D008810:Mice, Inbred C57BL; D020521:Stroke / Q000503:physiopathology
D003287:Contrast Media