Myocardial T1 mapping using SMART1Map: initial in vivo experience
نویسندگان
چکیده
Background Recently a single-point, saturation-recovery myocardial T1 mapping sequence (SMART1Map = Saturation Method using Adaptive Recovery Times for cardiac T1 Mapping) was presented [1]. Compared to common methods like MOLLI, SMART1Map measures true T1 instead of apparent T1 relaxation, is more time efficient and can track exact TI times instead of estimated ones based on the heart rate during prescription. In this work we compare SMART1Map to MOLLI in an initial cohort of volunteers.
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Accelerated myocardial T1 mapping using SMART1Map and compressed sensing with temporal PCA
Background Myocardial T1 mapping has been proposed for characterizing a wide range of diffuse and focal fibrotic pathologies. Due to the demands of requiring multiple sample points along the signal relaxation curve in a breath-held ECG-gated scan, current T1 mapping methods have focused on single-shot acquisitions. Collecting all data in a quiescent time window has limited T1 mapping to a reduc...
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Background SMART1Map is a new single-point technique for cardiac T1 mapping [1]. Unlike Look-Locker approaches, such as MOLLI, which yield an “apparent” T1 (T1*), SMART1Map directly measures true T1. Because T1* is a function of imaging parameters, it is always shorter than T1, and correction methods are required to obtain the true T1. This work compared the accuracy of SMART1Map with MOLLI in ...
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متن کاملA long way from the heart.
the gadolinium-enhanced myocardium: adjustment for factors affecting interpatient comparison. Magn Reson Med 2011;65:1407–15. 21. Schneider CA,Rasband WS, Eliceiri KW. NIH Image to ImageJ: 25 yearsof image analysis. Nat Methods 2012;9:671–5. 22. Flett AS, Hayward MP, Ashworth MT, Hansen MS, Taylor AM, Elliott PM et al. Equilibrium contrast cardiovascular magnetic resonance for the measurement o...
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