ObjectivesTo analyse the value of cardiovascular magnetic resonance (CMR)-derived myocardial parameters to differentiate left ventricular non-compaction cardiomyopathy (LVNC) from other cardiomyopathies and controls.MethodsWe retrospectively analysed 12 patients with LVNC, 11 with dilated and 10 with hypertrophic cardiomyopathy and compared them to 24 controls. LVNC patients had to fulfil standard echocardiographic criteria as well as additional clinical and imaging criteria. Cine steady-state free precession and late gadolinium enhancement (LGE) imaging was performed. The total LV myocardial mass index (LV-MMI), compacted (LV-MMIcompacted), non-compacted (LV-MMInon-compacted), percentage LV-MMnon-compacted, ventricular volumes and function were calculated. Data were compared using analysis of variance and Dunnett’s test. Additionally, semi-quantitative segmental analyses of the occurrence of increased trabeculation were performed.ResultsTotal LV-MMInon-compacted and percentage LV-MMnon-compacted were discriminators between patients with LVCN, healthy controls and those with other cardiomyopathies with cut-offs of 15 g/m2 and 25 %, respectively. Furthermore, trabeculation in basal segments and a ratio of non-compacted/compacted myocardium of ≥3:1 were criteria for LVNC. A combination of these criteria provided sensitivities and specificities of up to 100 %. None of the LVNC patients demonstrated LGE.ConclusionsAbsolute CMR quantification of the LV-MMInon-compacted or the percentage LV-MMnon-compacted and increased trabeculation in basal segments allows one to reliably diagnose LVNC and to differentiate it from other cardiomyopathies.Key Points• Cardiac magnetic resonance imaging can reliably diagnose left ventricular non-compaction cardiomyopathy.• Differentiation of LVNC from other cardiomyopathies and normal hearts is possible.• The best diagnostic performance can be achieved if combined MRI criteria for the diagnosis are used.

Real-time MR imaging-guided placement of multiple catheters is feasible in patients, with subsequent performance of stimulation maneuvers and occasional complete isthmus ablation.

Dynamic CT angiography revealed that the peak enhancement of endoleaks is significantly different than that of the aorta and that endoleaks may not be adequately evaluated with conventional biphasic CT protocols. The use of dynamic CT angiography is associated with a significantly increased detection rate of endoleaks compared with the detection rates at the time points of conventional biphasic CT.

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Background-Patients with right ventricular injury (RVI) complicating ST-elevation myocardial infarction (STEMI) haveimpaired prognosis, but it is unclear which patients are at risk of developing RVI. Cardiac magnetic resonance can identify these patients and might add important information on risk stratification, prognosis, and treatment. Aims were to determine the predictors and the prognostic significance of RVI assessed by wall motion abnormalities, edema, myocardial salvage index, and delayed enhancement in acute reperfused STEMI. Methods and Results-We studied 450 patients 1-4 days after primary angioplasty in STEMI. T2-weighted and delayed-enhancement cardiac magnetic resonance was used for visualizing edema and scar to calculate myocardial salvage index. Cine-imaging was performed to assess wall motion abnormalities, which, in combination with edema, were considered diagnostic for RVI. Patients with RVI were compared with matched patients with isolated left ventricular infarction. The primary end point was the occurrence of a major adverse cardiac event: a composite of death, reinfarction, and congestive heart failure after a median follow-up period of 20.9 months. RVI was present in 69 patients, and 41 of 69 showed myocardial necrosis. In a multivariable stepwise forward logistic regression analysis, a high RV myocardial mass (odds ratio, 2.06; 95% confidence interval, 1.