Meeting Banner
Abstract #1479

Dependence of Focused-Ultrasound Induced Blood-Brain Barrier Opening Effect with Exposure Time: Evaluation via Dynamic Contrast-Enhanced Magnetic-Resonance Imaging

Wen-Yen Chai1,2, Po-Chun Chun3, Sheng-Kai Wu4, Chih-Hung Tsai2, Hsin-Yi Lai5, and Hao-Li Liu2

1Department of Diagnostic Radiology and Intervention, Chang-Gung Memorial Hospital, Taoyuan, Taiwan, 2Department of Electrical Engineering, Chang-Gung University, Taoyuan, Taiwan, 3Department of Research and Development, NaviFUS corp., Taipei, Taiwan, 4Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan, 5Interdisciplinary Institute of Neuroscience and Technology, Zhejiang University, Hangzhou, China

FUS exposure with presence of microbubbles can transiently open the BBB at targeted brain tissues. The study purpose is to investigate the dependency of the BBB opening effect with ultrasound exposure time by DCE-MRI. Our result showed extending exposure time can effectively increase FUS-induced BBB opening degree without causing tissue damage. We also proposed a strategy by adjusting exposure time during the multiple exposures to overcome the effects that microbubbles concentration dynamic changed after IV bolus injection. This approach of control FUS exposure time may bring technology advances of FUS-induced BBB opening to deliver drug for CNS disease treatment.

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