Abstract #3689
Time-Resolved Fetal Cardiac MRI Using Compressed Sensing and Metric Optimized Gating
Christopher W. Roy 1 , Mike Seed 2,3 , and Christopher K. Macgowan 1,3
1
Medical Biophysics and Medical Imaging,
University of Toronto, Toronto, Ontario, Canada,
2
Labatt
Family Heart Centre, Division of Cardiology, Department
of Paediatrics, The Hospital for Sick Children, Ontario,
Canada,
3
Diagnostic
Imaging, The Hospital for Sick Children, Toronto,
Ontario, Canada
A reconstruction method for undersampled time resolved
fetal cardiac imaging is presented. First, Metric
Optimized Gating is used to reduce artifact from
non-gated cardiac motion. Second, Compressed Sensing is
employed to reduce artifact from random undersampling.
The accuracy of this approach is investigated through a
numerical simulation of a prospectively undersampled
CINE cardiac MRI acquisition comprised of realistic
cardiac motion, heart rate variability, and image noise.
Initial feasibility in the fetal population is presented
through retrospectively undersampled in utero MRI data.
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.
