A T2-based oximetry pulse sequence has been developed by interleaving a phase-contrast module preceding a background-suppressed T2-prepared echoplanar imaging readout. The method enables rapid simultaneous measurement of blood flow velocity and T2 of blood water protons from a single anatomic location in 18 seconds scan time. The pulse sequence improves on T2-based oximetry methods, including T2-relaxation-under-spin-tagging (TRUST), by incorporating background-suppression to eliminate the need for “control” and “label” images. The pulse sequence also interleaves phase-contrast MRI so that a separate measurement of blood flow velocity is not required to quantify whole-organ metabolic rate of oxygen.
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.
Keywords