Quantification of Left Ventricular Size and Function by 2-Dimensional Echocardiography: So Basic and So Difficult
نویسندگان
چکیده
منابع مشابه
Assessment of left ventricular function by three-dimensional echocardiography
Accurate determination of LV volume, ejection fraction and segmental wall motion abnormalities is important for clinical decision-making and follow-up assessment. Currently, echocardiography is the most common used method to obtain this information. Three-dimensional echocardiography has shown to be an accurate and reproducible method for LV quantitation, mainly by avoiding the use of geometric...
متن کاملEvaluation of left ventricular function by echocardiography.
Ventricular minor-axis dimensions were measured by echocardiography at end-systole (Ss) and end-diastole (SD)) in five groups of patients: (I) normal; (II) mitral stenosis; (III) compensated volume overload; (IV) idiopathic hypertrophic subaortic stenosis; and (V) congestive heart failure. Cardiac pump function was evaluated by determination of left ventricular volumes and ejection fraction (EF...
متن کاملQuantification of left ventricular volumes by two-dimensional echocardiography: a simplified and accurate approach.
A new and simplified method to determine left ventricular (LV) volumes with two-dimensional echocardiography (2-D echo) was developed using the parasternal long-axis and apical fourand twochamber views. An end-diastolic area (EDA) was derived using the longest minor axis (Dmax) from either of the three views and the major long axis (Lmax) from the apical views, with the formula EDA = Dmax * L T...
متن کاملSemi-automated quantification of left ventricular volumes and ejection fraction by real-time three-dimensional echocardiography
BACKGROUND Recent studies have shown that real-time three-dimensional (3D) echocardiography (RT3DE) gives more accurate and reproducible left ventricular (LV) volume and ejection fraction (EF) measurements than traditional two-dimensional methods. A new semi-automated tool (4DLVQ) for volume measurements in RT3DE has been developed. We sought to evaluate the accuracy and repeatability of this m...
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Frame systems—the ancestors of Description Logics—supported a form of defeasible inheritance and overriding. Such nonmonotonic features disappeared from implementations after the logical reconstruction of frame systems, although applications provide interesting use cases for nonmonotonic inferences. This talk gives an overview of the nonmonotonic DLs introduced so far, and illustrates the many ...
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ژورنال
عنوان ژورنال: Circulation: Cardiovascular Imaging
سال: 2017
ISSN: 1941-9651,1942-0080
DOI: 10.1161/circimaging.117.007165