Abstract #0597

Transient Oxygen Extraction Fraction as a Measure of Cerebrovascular Reserve

Charles G Cantrell¹, Parmede Vakil^1,2, Donald R Cantrell³, Yong Jeong¹, Sameer A Ansari³, and Timothy J Carroll^1,3

¹Biomedical Engineering, Northwestern, Chicago, IL, United States, ²College of Medicine, University of Illinois, Chicago, IL, United States, ³Radiology, Northwestern, Chicago, IL, United States

We have found that MR-PARSE has detectable sensitivity to frequency shifts induced by transient alterations in de-oxyhemoglobin through the cardiac cycle. Our initial studies have shown, through the use of ICA, a statistically significant hemispheric difference between healthy and compromised regions. Our approach to quantifying cerebrovascular reactivity represents a new and simple, non contrast approach to stratifying patients toward therapies to prevent stroke.

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.