OBJECTIVES this study evaluated early diastolic filling dynamics using a semiautomated objective analysis of filling velocities obtained from color M-mode echocardiography. BACKGROUND diastolic function can be evaluated from color M-mode echocardiography by measuring the early diastolic flow propagation velocity (Vp) from the slope of a single linear approximation of an isovelocity contour. H...

In cases with narrow QRS-complex tachycardia, prompt differentiation of the etiology is crucial in management. M-mode echocardiographic examination of the interatrial septum can give important information in the emergency department. A 57-year-old man who had palpitation and dyspnea for 2 days visited our emergency department. The initial ECG showed negative saw-tooth–shaped atrial activity in ...

AIM The aim of this study was to establish M-mode echocardiographic reference values in Pantja goats and to study the effect of gender and body weight (BW) on these parameters. MATERIALS AND METHODS A total of 18, clinically healthy, adult Pantja goats of either sex, aged 2-4 years and weighing 10-44 kg were included in the study. Echocardiographic examination was performed in the standing un...

IN THE PRECEDING ARTICLE in this issue of Circulation, Wann et al. compare features of M-mode and two-dimensional echocardiography as used in patients with infective endocarditis. Their discussion should arouse curiosity about the implied conflict between M-mode and the newer, two-dimensional approach for general ultrasonic imaging of the heart. M-mode echocardiography has well-known capabiliti...

Wall thicknesses were measured and echo densities were evaluated from the left ventricular echograms of 182 patients. The echogram was considered to reflect scar tissue when 1) either the interventricular septum, the posterior left ventricular wall or the anterior left ventricular wall was less than 7 mm thick in mid-diastole and was more echo-producing than its opposing wall or another area of...

AIM Evaluation of cardiac structures requires a large study group for accurate data on normal values. The aim of the study was to obtain normal M mode echocardiographic values in a substantial sample of healthy term neonates and children to develop centile charts. MATERIALS AND METHODS Data were obtained over 2 years from a single center in Turkey, from 1200 healthy infants and children aged ...

In humans the mechanism governing the internal jugular vein (IJV) valve opening and closure is still unclear. M-mode is used in echo-cardiology for the heart valves assessment. Sometimes it was performed also in deep peripheral veins and in vena cava assessment, but never in the IJV valve. Aim of the present study is to investigate the IJV valves physiology in healthy volunteers, by means of bo...

IN THE PRECEDING ARTICLE in this issue of Circulation, Wann et al. compare features of M-mode and two-dimensional echocardiography as used in patients with infective endocarditis. Their discussion should arouse curiosity about the implied conflict between M-mode and the newer, two-dimensional approach for general ultrasonic imaging of the heart. M-mode echocardiography has well-known capabiliti...

Representing uncertainty in predictions made by complex probabilistic models is often crucial but computationally challenging. There are a number of useful probabilistic models where computing the most probably assignment (or MAP) is easy but finding the marginal probability of variables is hard. In this paper, we present a novel representation of uncertainty in discrete probabilistic models, t...

Anatomic M-mode (AMM) is an echocardiographic technique that is capable of generating M-mode studies from two-dimensional (2D) cine loops. Unlike conventional M-mode (CMM) whose scan line must lie along the axis of the ultrasound signal, AMM produces M-mode studies independent of the orientation of the ultrasound beam. We sought to determine the ability of AMM to measure cardiac dimensions in n...