RESUMEN
Objective:To improve the contrast between the myocardium and the cardiac cavity by left ventricular opacification and to diagnosis the suspected cardiac space occupying.Methods:25 patients with suspected cardiac space occupying by two-dimensional echocardiography were selected into the observation group. All patients were limited by near-field artifacts and sound window, gas interference or unclear display of two-dimensional echocardiography due to obesity. After left ventricular opacification, the images were sorted and analyzed. 10 subjects without heart disease served as the normal control group. The left ventricular function measured by routine two-dimensional echocardiography and cardiography were compared in the observation group.Results:In the observation group, 25 patients had no discomfort during the contrast-enhanced, and the contrast-enhanced echocardiography was successful. Among them, 7 cases excluded the diagnosis of cardiac space occupying, 3 cases were judged to be caused by near-field artifacts, 3 cases were judged to be spontaneous intracardiac development, and 1 case was judged to be ventricular septal hypertrophic cardiomyopathy; 18 patients were diagnosed as intracardiac thrombus, and the smallest thrombus diagnosed was 7 mm×8 mm hypoechoic fresh thrombus at the apex of the heart after myocardial infarction. In the observation group, there was no significant difference between ejection fraction (EF) value measured by two-dimensional image echocardiography and cardiography ( P>0.05), but the ventricular end diastolic volume (EDV) and ventricular end systolic volume (ESV) of cardiography were larger than those of two-dimensional echocardiography ( P<0.05). At the same time, 6 of the 25 patients could clearly observe the vortex phenomenon in the cardiac cavity after angiography, indicating the hypercoagulable state of the cardiac cavity. All 10 cases in the control group were developed successfully, and there was no discomfort in the course of angiography. Conclusions:Left ventricular contrast echocardiography can improve the clarity of cardiac ultrasound images, accurately judge the presence or absence of cardiac space occupying, and more accurately judge the change of cardiac cavity size, so as to provide diagnostic information for cardiac space occupying.