Abstract #2611
High Resolution 2D ECG-Segmented Slice Interleaved T 1 mapping (STONE) with Reduced Partial Voluming
Jihye Jang 1,2 , Tamer Basha 1 , Sophie Berg 1 , Cory Tschabrunn 1 , Elad Anter 1 , Sbastien Roujol 1 , and Reza Nezafat 1
1
Department of Medicine, Beth Israel
Deaconess Medical Center and Harvard Medical School,
Boston, MA, United States,
2
Computer
Aided Medical Procedures, Technische Universitt
Mnchen, Munich, Bayern, Germany
Myocardial T
1
mapping
is performed by pixel-wise curve fitting of single-shot
images collected over cardiac cycles. Single-shot
imaging often has limited spatial resolution, requires
high acceleration factor and prone to cardiac motion
that occurs over >200ms acquisition window during
cardiac cycle. This results in partial voluming error
and reduced measurement precision in T
1
mapping.
We recently developed a free-breathing slice-interleaved
T
1
(STONE)
mapping sequence which removes the breath-holding
constrain and allows efficient simultaneous imaging of
multiple slices. In this study, we sought to further
extend STONE imaging sequence to allow ECG segmented
multi-shot data acquisition to improve spatial
resolution.
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