Predicting and optimizing the territory of blood-brain barrier opening by superselective intra-arterial cerebral infusion under dynamic susceptibility contrast MRI guidance

Miroslaw Janowski, Piotr Walczak, Monica S. Pearl

Research output: Contribution to journalArticle

Abstract

Interventional neuroradiology techniques are minimally invasive and allow for superselective drug delivery to specific brain regions. The passage of most agents, however, is impaired by the blood-brain barrier (BBB). Despite its discovery over 40 years ago, hyperosmotic BBB opening (BBBO) remains highly variable, preventing its widespread implementation. Here, we report on a technique that enables the prediction and optimization of the BBBO territory. We found that the microcatheter tip position and the speed of hyperosmolar mannitol injection, both major determinants of the targeted territory, can be modulated in real-time as guided by trans-catheter perfusion MRI.

Original languageEnglish (US)
Pages (from-to)569-575
Number of pages7
JournalJournal of Cerebral Blood Flow and Metabolism
Volume36
Issue number3
DOIs
StatePublished - Mar 1 2016

Keywords

  • Blood-brain barrier opening
  • MRI
  • intra-arterial
  • mannitol

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology
  • Cardiology and Cardiovascular Medicine

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