In spite of the promised increase in signal-to-noise ratio and contrast to noise ratio, 3D whole-heart imaging at 7T remains challenging predominantly due to B1, B0 inhomogeneity, specific absorption rate limitations and coil-depth issues for single transmit. Here, we developed a toolbox to optimize the adiabatic hyperbolic secant refocusing pulse with respect to B1 and B0 inhomogeneity typically used for T2-preparation in non-contrast 3D Coronary Magnetic Resonance Angiography (CMRA). We present phantom and in vivo data for 3D CMRA employing a low excitation flip-angle scheme.
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