Meeting Banner
Abstract #2622

Dynamic dextran-enhanced CEST MRI reveals the size effect of BBB disruption associated with neuroinflammation

Safiya Aafreen1, Wenshen Wang2,3, Jiadi Xu2,3, Peter CM van Zijl2,3, Aline Thomas2, Jeff WM Bulte1,2,3,4, and Guanshu Liu2,3
1Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, United States, 2Radiology, Johns Hopkins University School of Medicine, Baltimore, MD, United States, 3Kirby Research Center, Kennedy Krieger Institute, Baltimore, MD, United States, 4Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, United States

Synopsis

Keywords: Contrast Agent, Molecular Imaging, Blood-Brain Barrier; Multiple Sclerosis

Prevailing imaging methods primarily focus on detecting blood-brain barrier (BBB) dysfunction utilising tracers of small molecular weight. Robust imaging methods suitable for assessing BBB permeability in the macro-molecular size range are still lacking. Our study aimed to develop and optimize a dextran-based MRI approach for detecting size-dependent BBB permeability. Demonstrated in an EAE MS mouse model, we established a dextran-based CEST MRI protocol for measuring the intracerebral distribution of non-labeled dextrans, validated the results using immunohistochemistry, and compared the CEST MRI results with conventional Gd-enhanced MRI.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.

Keywords