Regional sensitivity and coupling of BOLD, and CBV changes during stimulation of rat brain Academic Article Article uri icon

Overview

MeSH Major

  • Brain
  • Intensive Care Units, Pediatric
  • Monitoring, Physiologic

abstract

  • Functional MRI of rat brain was performed at 2 Tesla following intravenous injection of cocaine in order to 1) determine if changes in CBV and changes in BOLD signal were regionally coupled in brain parenchyma, and 2) compare the sensitivities of these imaging methods across different brain structures. Percent changes in CBV and BOLD relaxation rate were spatially and temporally coupled during this graded brain activation. The use of contrast agent increased functional sensitivity in all parenchymal brain structures, with a strong but predictable dependence on the resting-state blood volume fraction. Magn Reson Med 45:443-447, 2001.

publication date

  • March 6, 2001

Research

keywords

  • Academic Article

Identity

Digital Object Identifier (DOI)

  • 10.1002/1522-2594(200103)45:3<443::AID-MRM1058>3.0.CO;2-3

PubMed ID

  • 11241702

Additional Document Info

start page

  • 443

end page

  • 7

volume

  • 45

number

  • 3