Modified look-locker inversion recovery T1 mapping indices: assessment of accuracy and reproducibility between MRI scanners
نویسندگان
چکیده
Background Cardiac magnetic resonance (CMR) T1 mapping indices, including T1 time, partition coefficient (l), and extracellular volume fraction (ECV) measurements, are a group of emerging noninvasive, quantitative imaging biomarkers that can be used to assess diffuse myocardial fibrosis. Similar to other quantitative MRI measurements, T1 mapping results can be influenced by multiple scanner dependent factors, such as field strength, gradient systems, coil configuration, pulse sequence design, and artifacts related to field inhomogeneity and eddy currents. The purpose of this ex-vivo phantom, multicenter study was to investigate how scanner and field strength variation affected the accuracy and precision of T1 mapping indices.
منابع مشابه
Modified look-locker inversion recovery T1 mapping indices: assessment of accuracy and reproducibility between magnetic resonance scanners
BACKGROUND Cardiovascular magnetic resonance (CMR) T1 mapping indices, such as T1 time and partition coefficient (λ), have shown potential to assess diffuse myocardial fibrosis. The purpose of this study was to investigate how scanner and field strength variation affect the accuracy and precision/reproducibility of T1 mapping indices. METHODS CMR studies were performed on two 1.5T and three 3...
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عنوان ژورنال:
دوره 15 شماره
صفحات -
تاریخ انتشار 2013