Abstract #2572

Evaluation of time-resolved non-contrast 4-D dMRA technique using both Cartesian and 3D stack-of-stars golden-angle radial samplings in cerebrovascular malformations: A preliminary study

Lirong Yan¹, Songlin Yu¹, Samantha Ma¹, Yeang Chng², Salamon Noriko², Nader Pouratian², and Danny JJ Wang¹

¹Neurology, University of California Los Angeles, Los Angeles, CA, United States, ²Radiology, University of California Los Angeles, Los Angeles, CA, United States

A non-contrast 4-D MRA using stack-of-star golden angle acquisition (Radial-TrueSTAR) has been recently introduced, which can accelerate the imaging speed up to 3 fold, compared to conventional Cartesian acquisition. Here we evaluated the clinical utility of Cartesian- and Radial-TrueSTAR in cerebral arteriovenous malformation patients by comparison with time-of-flight and DSA. Our preliminary data demonstrates that Radial-TrueSTAR provides shorter scan time while preserving similar image qualities compared to Cartesian-TrueSTAR. Compared to TOF, the heterogeneity within the nidus can be observed using both Cartesian- and Radial-TrueSTAR. Radial-TrueSTAR may become a promising approach with reduced scan time and patient comfort in clinical applications.

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.