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Advanced myocardial tissue characterisation by a multi-component CMR protocol in patients with rheumatoid arthritis.
European Radiology 2017 November
OBJECTIVES: Rheumatoid arthritis (RA) patients are at increased risk of suffering from adverse cardiovascular events. Cardiovascular magnetic resonance (CMR) mapping techniques might be appropriate tools to complement late gadolinium enhancement (LGE) for the assessment of myocardial involvement. This study aimed to perform advanced myocardial tissue characterisation in RA patients by a multicomponent CMR protocol.
METHODS: 22 RA patients were prospectively enrolled and underwent CMR, including LGE and T1/T2 mapping sequences; 20 volunteers served as controls.
RESULTS: Mean LV-EF was 66%; prevalence of LGE was 18%. RA patients had increased native T1 (985 vs. 959 ms, p = 0.03), expanded extracellular volume (ECV) (27 vs. 25%, p = 0.02) and higher T2 values (52 vs. 49 ms, p < 0.001) compared to controls irrespective of the presence of LGE. T2 mapping showed the highest prevalence of values beyond the 95% percentile of controls.
CONCLUSION: RA patients demonstrated higher T1, ECV and T2 values compared to controls, with most significant differences for T2. Since these results seem to be independent of the presence of LGE, advanced myocardial tissue characterisation including CMR mapping techniques in addition to LGE-CMR might be useful in the evaluation of myocardial involvement in RA patients.
KEY POINTS: • RA patients had higher T1, ECV and T2 values compared to controls. • Most significant differences were observed for T2. • Our results seem to be independent of the presence of LGE. • Mapping might be useful in the evaluation of myocardial involvement in RA.
METHODS: 22 RA patients were prospectively enrolled and underwent CMR, including LGE and T1/T2 mapping sequences; 20 volunteers served as controls.
RESULTS: Mean LV-EF was 66%; prevalence of LGE was 18%. RA patients had increased native T1 (985 vs. 959 ms, p = 0.03), expanded extracellular volume (ECV) (27 vs. 25%, p = 0.02) and higher T2 values (52 vs. 49 ms, p < 0.001) compared to controls irrespective of the presence of LGE. T2 mapping showed the highest prevalence of values beyond the 95% percentile of controls.
CONCLUSION: RA patients demonstrated higher T1, ECV and T2 values compared to controls, with most significant differences for T2. Since these results seem to be independent of the presence of LGE, advanced myocardial tissue characterisation including CMR mapping techniques in addition to LGE-CMR might be useful in the evaluation of myocardial involvement in RA patients.
KEY POINTS: • RA patients had higher T1, ECV and T2 values compared to controls. • Most significant differences were observed for T2. • Our results seem to be independent of the presence of LGE. • Mapping might be useful in the evaluation of myocardial involvement in RA.
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