Abstract #2489
Comparison between Cartesian and Spiral MR flow imaging of stenotic flow.
Sven Petersson 1 , Petter Dyverfeldt 1 , Andreas Sigfridsson 2 , Carl Johan Carlhll 1,3 , and Tino Ebbers 1
1
CMIV and Linkping University, Linkping,
Sweden,
2
Karolinska
Institutet and Karolinska University Hospital,
Stockholm, Sweden,
3
Department
of Clinical Physiology, County Council of stergtland,
Linkping, Sweden
Spiral 4D flow MRI has recently been validated for the
assessment of aortic and intra-cardiac velocities. This
study compares the performance of spiral and Cartesian
flow MRI for the assessment of velocity and turbulent
kinetic energy in stenotic flow. Spiral trajectories are
relatively insensitive to flow artifacts and therefore
well suited for stenotic flow assessment. The
performance was evaluated by in-vitro measurements on a
stenotic flow phantom. The spiral sequence was three
times faster and less sensitive to displacement
artifacts compared to the Cartesian sequence. In
conclusion, spiral flow MRI appears favorable for the
assessment of stenotic flow.
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.
