Phantom-Validated Reference Values of Myocardial Mapping and Extracellular Volume at 3T in Healthy Koreans
نویسندگان
چکیده
منابع مشابه
Myocardial T1-mapping at 3T using saturation-recovery: reference values, precision and comparison with MOLLI
BACKGROUND Myocardial T1-mapping recently emerged as a promising quantitative method for non-invasive tissue characterization in numerous cardiomyopathies. Commonly performed with an inversion-recovery (IR) magnetization preparation at 1.5T, the application at 3T has gained due to increased quantification precision. Alternatively, saturation-recovery (SR) T1-mapping has recently been introduced...
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Methods Forty six healthy volunteers (26 females; mean age 49 ± 14 years) underwent left-ventricular T1 mapping in 3 short-axis slices at 3 T. For T1 mapping, modified Look-Locker inversion recovery sequence was used before and after injection of gadolinium contrast. T1 relaxation times were quantified for each slice and extracellular volume fraction (ECV) was calculated. The association betwee...
متن کاملMyocardial T1 and extracellular volume fraction mapping at 3 tesla
BACKGROUND To compare 11 heartbeat (HB) and 17 HB modified lock locker inversion recovery (MOLLI) pulse sequence at 3T and to establish preliminary reference values for myocardial T1 and the extracellular volume fraction (ECV). METHODS Both phantoms and normal volunteers were scanned at 3T using 11 HB and 17 HB MOLLI sequence with the following parameters: spatial resolution = 1.75 × 1.75 × 1...
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Methods Between April and July 2014 we recruited 32 healthy subjects (no known cardiovascular risk factors, no previous history of heart disease), aged between 20 and 80yrs. All of them underwent a cardiovascular magnetic resonance (CMR at 1.5T, n=19; CMR at 3T, n= 13) protocol that included steady state free precession (SSFP) cines for measuring ventricular dimensions and function, TFisp 2D T2...
متن کاملSegment-based myocardial T1 and T2 mapping at 3T: feasibility and normal values
Methods Sixty healthy volunteers (30 males / 30 females, 20 in each age group: 20-39 years, 40-59 years, 60-80 years) underwent T1 and T2 mapping of the left ventricle in 3 short axis slices. For T2 maps, 3 single shot steady state free precession (SSFP) images with different T2 preparation times (0, 24, 55ms) were acquired (TE 1.0 ms, TR 2.4 ms, voxel 1.9 x 1.9x6 mm). For T1 maps, Modified Loo...
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ژورنال
عنوان ژورنال: Investigative Magnetic Resonance Imaging
سال: 2020
ISSN: 2384-1095,2384-1109
DOI: 10.13104/imri.2020.24.3.141