Abstract #3929
Cardiac Function Analysis in Multi-cycle Real-time MRI
Teodora Chitiboi 1,2 , Anja Hennemuth 1 , Lennart Tautz 1 , Markus Hllebrand 1 , Jens Frahm 3 , and Horst Hahn 1
1
Fraunhofer MEVIS, Bremen, Bremen, Germany,
2
Jacobs
University, Bremen, Bremen, Germany,
3
Max
Planck Institute for Biophysical Chemistry, Gttingen,
Germany
The recent development of a real-time magnetic resonance
imaging (MRI) technique with 20 to 30 ms temporal
resolution allows for imaging multiple consecutive heart
cycles, without the need for breath holding or ECG
synchronization. Manual analysis of the resulting image
series is no longer feasible because of their length. We
propose a region-based algorithm for automatically
segmenting the myocardium in consecutive heart cycles
based on local context and prior knowledge. The method
was evaluated on ten real-time MRI series and compared
to segmentations by two observers, with promising
results. We show that our approach enables a multicycle
analysis of the heart function robust to breathing and
arrhythmia.
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