Myocardial iron assessment by T1 cardiovascular magnetic resonance at 3 Tesla
نویسندگان
چکیده
Background Myocardial T2* relaxometry at 1.5T provides reliable non-invasive assessment of cardiac iron burden and is commonly used for the diagnosis and monitoring of patients at risk. 3T CMR offers some advantages over 1.5T but iron assessment has not been routinely performed at 3T due to technical concerns regarding artefacts and rapid signal loss, as well as a lack of tissue calibration. In vitro data has shown that like T2*, T1 shortens with increasing tissue iron. At 1.5T, T1 correlates reasonably with T2* in cases of iron overload ( < 20 ms). We compared myocardial T1 measurement at 3T with measurements made at 1.5T of T1 and the established black blood (BB) T2* technique.
منابع مشابه
Myocardial iron assessment by T1 cardiovascular magnetic resonance at 1.5 Tesla
Background Heart failure secondary to cardiac siderosis is the prevalent cause of mortality in patients with primary or secondary iron overload. Myocardial iron assessment using T2* has been successfully calibrated against myocardial iron at 1.5T and the black blood (BB) technique has demonstrated high reproducibility such that it has become the clinical gold standard. T1 appears to correlate w...
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