Abstract #2573

Breath-hold coronary MR angiography: comparison of flow-dependent QISS with flow-independent T2-prepared 2D balanced steady-state free precession

Robert R. Edelman^1,2, Marcos Paulo Botelho¹, Amit Pursnani¹, Shivraman Giri³, and Ioannis Koktzoglou^1,4

¹Radiology, NorthShore University HealthSystem, Evanston, IL, United States, ²Radiology, Feinberg School of Medicine, Northwestern Univesity, Chicago, IL, United States, ³Siemens Healthcare, Chicago, IL, United States, ⁴Radiology, University of Chicago Pritzker School of Medicine, Chicago, IL, United States

Radial quiescent-interval slice-selective (QISS) is flow-dependent due to the application of an in-plane FOCI inversion pulse, whereas radial 2D T2-prepared bSSFP is essentially flow-independent. Both techniques show promise as efficient breath-hold alternatives to standard-of-care free-breathing 3D techniques for coronary MR angiography. Comparison of radial QISS with T2-prepared radial bSSFP was performed in healthy subjects and patients with coronary artery disease (CAD). Although the appearance of the coronary arteries in healthy subjects was similar using flow-dependent QISS and flow-independent T2-prepared 2D bSSFP, aside from increased pericardial fluid signal and streak artifact with the latter technique, the appearance diverged in severe CAD.

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.