Abstract #1664

Rapid cerebrovascular reactivity mapping: Comparison of a sinusoid protocol with the conventional block protocol

Nicholas P Blockley¹, James W Harkin², and Daniel P Bulte³

¹FMRIB Centre, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom, ²Department of Physics, University of Oxford, Oxford, United Kingdom, ³Institute of Biomedical Engineering, University of Oxford, Oxford, United Kingdom

Cerebrovascular reactivity (CVR) mapping is a useful technique for stress testing the brain. However, clinical adoption of CVR mapping has so far been hindered by relatively long scan durations of 7-12mins. In this study we show that by using a sinusoidal carbon dioxide stimulus in place of a conventional block protocol, equivalent CVR maps can be produced in a much shorter scan duration of 3-5mins.

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.