Myocardial T1 mapping using SMART1 Map and MOLLI mapping in asymptomatic patients with recent extracardiac sarcoidosis
Language English Country Great Britain, England Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
32749740
DOI
10.1002/nbm.4388
Knihovny.cz E-resources
- Keywords
- cardiac magnetic resonance, extracellular volume, parametric mapping, sarcoidosis,
- MeSH
- Algorithms * MeSH
- Middle Aged MeSH
- Humans MeSH
- Magnetic Resonance Imaging * MeSH
- Myocardium pathology MeSH
- Sarcoidosis diagnostic imaging pathology MeSH
- Check Tag
- Middle Aged MeSH
- Humans MeSH
- Male MeSH
- Female MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
INTRODUCTION: Sarcoidosis is a systemic granulomatous disease affecting in particular the respiratory tract. Cardiac magnetic resonance (CMR), including a measurement of T1 relaxation time, could potentially detect early stadia of sarcoidosis of the heart. The study aims to assess T1 mapping in the detection of early cardiac involvement in asymptomatic patients with sarcoidosis. METHODS: One hundred and twenty patients with extracardiac sarcoidosis and without any heart disease history were included. One hundred and thirteen of them underwent a CMR examination. The mean time from the diagnosis of sarcoidosis was 0.8 (0.2-3.3) years. Cine images for the assessment of left ventricular (LV) functional parameters and pre- and post-contrast saturation method using adaptive recovery times for cardiac T1 mapping (SMART1 Map) and modified Look-Locker inversion recovery (MOLLI) images were acquired for the assessment of native T1 relaxation time and extracellular volume (ECV). The measured parameters were compared between sarcoidosis patients and 22 controls. RESULTS: The sarcoidosis patients had normal global and regional systolic LV function-LV ejection fraction 65 ± 5% versus 66 ± 7% (p NS). The mean native T1 relaxation times were not prolonged-1465 ± 93 ms versus 1480 ± 88 ms (p NS) measured by SMART1 Map and 1317 ± 60 ms versus 1313 ± 83 ms (p NS) measured using a MOLLI sequence. Similarly, the mean ECV values did not increase-16.9 ± 3.9% versus 17.9 ± 3.7% (p NS) measured by SMART1 Map and 30.9 ± 2.9% versus 31.6 ± 8.3% (p NS) measured using a MOLLI sequence. CONCLUSION: Myocardial native T1 relaxation times were not prolonged and ECV was not increased in asymptomatic patients with extracardiac sarcoidosis.
Department of Medical Imaging St Anne's Faculty Hospital Brno Czech Republic
Department of Pathophysiology Faculty of Medicine Masaryk University Brno Czech Republic
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