2019年5月18日 · Echocardiography has crucial importance in the diagnosis of dilated cardiomyopathy (DCM). Echocardiographic features of DCM are left ventricular (LV) dilation and systolic dysfunction with impaired global contractility and normal LV wall thickness and LV diastolic dysfunction with elevation in LV filling pressure.

Transthoracic echocardiography (TTE) is the first-line step in diagnosis in acute and chronic HF and provides immediate information on chamber volumes, ventricular systolic and diastolic function, wall thickness, valve function and the presence of pericardial effusion, while contributing to information on aetiology.

Four new echo techniques, mostly studied in ischemic patients, are now available to identify and quantify MF and may be usefully applied in DCM: Contrast-enhanced (CE) 3D Echo. Montant et al. tested CE-3D echo versus CMR-LGE and found that second-harmonic imaging (with transmission/receive 1.6/3.2 Mhz) at a mechanical index of 0.5 was the best ...

Echocardiography in dilated cardiomyopathy (DCM) In dilated cardiomyopathy (DCM), both ventricles are dilated and left ventricular systolic function is impaired (i.e ejection fraction is reduced). Left ventricular diastolic function may be normal or exhibit a restrictive pattern (increased E/A ratio and rapid deceleration time; see Diastolic ...

2016年3月14日 · An essential echocardiographic feature for the diagnosis of DCM is global LV systolic dysfunction, i.e., a significantly depressed LV ejection fraction (EF) (usual diagnostic cutoff <45 %) [1].

Echocardiography is the main diagnosis and monitoring technique for various types of heart diseases. It has a favorable cost-efficiency ratio, low risk, allows follow-up, and offers increasingly more accurate information due to continuous development in terms of technique, imaging methods, and pharmacology-associated assessment.

2009年12月1日 · In patients with suspected heart failure or LV dysfunction, echocardiography is the most important investigation in establishing the diagnosis of DCM, by defining the presence and severity of LV dilatation and dysfunction.

2016年12月1日 · Dilated cardiomyopathy (DCM) is characterized by a globally dilated and dysfunctioning left ventricle (LV). Therefore, echocardiographic diagnostic criteria for DCM are a LV end-diastolic diameter greater than 117% predicted value corrected for age and body surface area and a LV ejection fraction less than 45% (and/or fractional shortening less ...

Echocardiography is most essential and one of the gold-standard techniques in the diagnosis of DCM. The echo diagnostic criteria of DCM includes the left ventricle area >112% which indicates dilation of the left ventricle. A fraction shortening <25% indicates abnormal systolic function.

2017年6月1日 · Dilated cardiomyopathy (DCM) is the third most common cause of HF and is the most common cardiomyopathy. It is defined by the presence of left ventricular dilatation and left ventricular systolic dysfunction in the absence of abnormal loading conditions (hypertension and valve disease) or coronary artery disease sufficient to cause global ...