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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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