Salicylic acid analogues as chemical exchange saturation transfer MRI contrast agents for the assessment of brain perfusion territory and blood-brain barrier opening after intra-arterial infusion

Xiaolei Song, Piotr Walczak, Xiaowei He, Xing Yang, Monica Pearl, Jeff W Bulte, Martin Gilbert Pomper, Michael T Mcmahon, Miroslaw Janowski

Research output: Contribution to journalArticle

Abstract

The blood-brain barrier (BBB) is a major obstacle for drug delivery to the brain. Predicted, focal opening of the BBB through intra-arterial infusion of hyperosmolar mannitol is feasible, but there is a need to facilitate imaging techniques (e.g. MRI) to guide interventional procedures and assess the outcomes. Here, we show that salicylic acid analogues (SAA) can depict the brain territory supplied by the catheter and detect the BBB opening, through chemical exchange saturation transfer (CEST) MRI. Hyperosmolar SAA solutions themselves are also capable of opening the BBB, and, when multiple SAA agents were co-injected, their locoregional perfusion could be differentiated.

Original languageEnglish (US)
Pages (from-to)1186-1194
Number of pages9
JournalJournal of Cerebral Blood Flow and Metabolism
Volume36
Issue number7
DOIs
StatePublished - Jul 1 2016

Keywords

  • BBB opening
  • CEST MRI
  • perfusion territory
  • Salicylic acid analogues

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Clinical Neurology
  • Neurology

Fingerprint Dive into the research topics of 'Salicylic acid analogues as chemical exchange saturation transfer MRI contrast agents for the assessment of brain perfusion territory and blood-brain barrier opening after intra-arterial infusion'. Together they form a unique fingerprint.

  • Cite this