"non-compacted/compacted myocardium ratio of ≥3:1 in at least one of the following segments (1–3, 7–16) – the apical segment 17 is excluded"
"non-compacted/compacted myocardium ratio of ≥3:1 in at least one of the following segments (1–3, 7–16) – the apical segment 17 is excluded"
"non-compacted/compacted myocardium ratio of ≥3:1 in at least one of the following segments (1–3, 7–16) – the apical segment 17 is excluded"
"trabeculation (non-compacted/compacted) in segments 4–6 of ≥2:1"
"a ratio of non-compacted : compacted myocardium ≤2.3:1 is considered normal"
"might be associated with a long QT interval"
"referred to as the non-compacted or "NC" layer"
"Ebstein anomaly (25%)"
"A good diagnostic clue is a ratio of non-compacted telediastolic myocardium to compacted telediastolic myocardium of more than 2.3:1 (sensitivity: 86%, specificity: 99%) 10,11."
"A good diagnostic clue is a ratio of non-compacted telediastolic myocardium to compacted telediastolic myocardium of more than 2.3:1 (sensitivity: 86%, specificity: 99%) 10,11."
"a ratio of non-compacted : compacted myocardium ≤2.3:1 is considered normal"
Expected headings
"Associations"
"Echocardiography"
"There is controversy as to whether non-compaction of the left ventricle represents a distinct disease versus a phenotypic manifestation of various cardiomyopathies 9. For example, although left ventricular non-compaction is classified as primary genetic cardiomyopathy by the American Heart Association, it remains unclassified by both the World Health Organisation and the European Society of Cardiology 9."
"Echocardiography was traditionally used in the diagnosis of left ventricular non-compaction, with the addition of contrast greatly increasing the sensitivity of this examination. However, cardiac MRI is now considered the modality of choice to make this diagnosis. There are no universally accepted echocardiographic criteria for left ventricular non-compaction. The most common echocardiographic features include 7:"
"Additionally, findings of non-compaction of the left ventricle may be seen in a spectrum of clinical presentations. It may be seen as a component of cardiomyopathy, such as in Barth syndrome, or in concert with other myocardial structural/functional abnormalities (e.g. dilated, restrictive, arrhythmogenic right ventricular cardiomyopathies); however, it may be acquired/reversible and/or observed in subjects with normal left ventricular function and size."
"While non-compaction of the left ventricle may be an isolated morphological variant, discovered in patients with otherwise structurally and functionally normal hearts, it may also present as a component of congenital heart disease or true cardiomyopathy; in this latter instance, it may present as congestive heart failure. Other presenting features may include 8:"