Normal values of native T1 / T2 maps and ventricular function in Cardiac Magnetic Resonance Imaging in 3T scanner
DOI:
https://doi.org/10.53903/01212095.312Keywords:
Cardiac magnetic resonance imaging, Myocardium, Ventricular functionAbstract
Background: T1 and T2 maps are useful sequences in cardiac magnetic resonance (CMR) for the detection of myocardial alterations. Normal values of native T1 maps depend on multiple factors, so each center must establish its own normal values. CMR is the reference imaging technique in the quantification of ventricular function, however, current studies are generally based on European
and US Caucasian population. Objective: To establish the normal reference values of native T1 and T2 maps and ventricular function in healthy individuals in a 3T MRI scanner. Methods: Crosssectional study in healthy individuals between 20 and 80 years old in Medellín who underwent CMR in 3T scanner. Native T1 and T2 map sequences and ventricular function were obtained. Mean
values, standard deviation and 95 % confidence interval were estimated for each age group and sex. Interobserver and intraobserver agreement was evaluated. Results: 64 healthy individuals (32 women) with a mean age of 47 years (SD: 15.1) were included. The mean native T1 value was 1177 ms ± 43.19 ms and T2 map value was 38.9 ms ± 2.66. Native T1 values increase with age in both sexes, and were higher in females. Most ventricular function values were higher in men and decreased with age in both sexes. Intra- and interobserver agreement was good. Conclusion: Normal values of native T1 and T2 maps and ventricular function in healthy individuals from Medellín are presented,
with good intra- and interobserver agreement.
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