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Abstract #2909

Reliability of respiratory-triggered 2D cine kat-ARC for the assessment of biventricular function in patients with repaired tetralogy of Fallot

Makoto Orii1, Tsuyoshi Sugawara1, Hidenobu Takagi1, Martin A Janich2, Atsushi Nozaki3, and Kunihiro Yoshioka1
1Iwate Medical University, Yahaba, Japan, 2GE Healthcare, Munich, Germany, 3GE Healthcare, Tokyo, Japan

To assess the image quality, reproducibility, and accuracy of two-dimensional (2D)-cine k-adaptive-t Autocalibrating Reconstruction for Cartesian sampling (2D kat-ARC) for the quantification of biventricular volumes and function compared to 2D balanced steady state free precession (2D SSFP) in patients with repaired tetralogy of Fallot (TOF). In this study, we were able to find good reproducibility of biventricular volumes and ejection fraction (EF) between 2D SSFP and 2D kat-ARC sequences despite some drawbacks including an overestimation of right ventricular (RV) end-systolic volume and an underestimation of RV stroke volume and RVEF compared to 2D SSFP.

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