Myocardial T1 mapping at 3.0T using inversion recovery FLASH readout
نویسندگان
چکیده
Background Myocardial T1 mapping methods such as modified Look-Locker inversion-recovery (MOLLI) typically use balanced steady state free precession (bSSFP) readout, which is known to be particularly sensitive to off resonance and thus limits its utility at higher field strengths. Fast low angle shot (FLASH) imaging is known to be more robust against susceptibility artifacts than bSSFP. However, the T1 mapping algorithms that have been developed for bSSFP readout are not directly applicable to FLASH-based T1 mapping sequences at 3.0T. We sought to develop a FLASH-based MOLLI T1 mapping technique for 3.0T and validate it on a cohort of healthy volunteers.
منابع مشابه
High-resolution myocardial T1 mapping using single-shot inversion recovery fast low-angle shot MRI with radial undersampling and iterative reconstruction
OBJECTIVE To develop a novel method for rapid myocardial T1 mapping at high spatial resolution. METHODS The proposed strategy represents a single-shot inversion recovery experiment triggered to early diastole during a brief breath-hold. The measurement combines an adiabatic inversion pulse with a real-time readout by highly undersampled radial FLASH, iterative image reconstruction and T1 fitt...
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