Clinical application of contrast-enhanced ultrasonography in diagnosis of superficial lymphadenopathy.

Objective: The purpose of this study was to evaluate the value of contrast-enhanced ultrasonography (CEUS) in differential diagnosis of superficial lymphadenopathy.

Methods: Ninety-four superficial enlarged lymph nodes in 94 patients were studied by conventional ultrasonography (gray scale and color Doppler) and CEUS. Contrast-enhanced sonograms were analyzed using contrast-specific quantification software.

Effects of distal protection on left ventricular function in acute anterior myocardial infarction: a Doppler echocardiographic study.

Whether distal protection devices (DPDs) during percutaneous coronary intervention (PCI) can improve myocardial function in patients with acute myocardial infarction (AMI) is still under debate. Using tissue Doppler imaging (TDI), we evaluate the global and regional left ventricular systolic and diastolic functions in patients with anterior AMI using DPDs compared with conventional PCI. Ninety-six patients with anterior AMI were randomly assigned to either PCI with DPDs (DPD, n = 46) or traditional PCI (control, n = 50) groups.

Real-time myocardial contrast echocardiography in rat: infusion versus bolus administration.

To compare the feasibility of real-time myocardial contrast echocardiography (MCE) in rats with infusion and bolus administration of a second-generation ultrasound contrast agent BR1. B-mode real-time MCE was performed in 12 Sprague Dawley rats following the BR1 infusion or bolus injection. The myocardium signal intensity (SI) was plotted against time and was fitted to exponential functions.

Hemostasis of active bleeding from the liver with percutaneous microwave coagulation therapy under contrast-enhanced ultrasonographic guidance: an experimental study.

Objective: The purpose of this study was to investigate the feasibility of percutaneous microwave coagulation therapy (PMCT) guided by contrast-enhanced ultrasonography (CEUS) for controlling active bleeding in rabbit livers.

Methods: Twenty actively bleeding rabbit liver models, produced with an 18-gauge semiautomatic biopsy needle and confirmed with CEUS, were randomly divided into 2 groups: a PMCT group (n=10, with a microwave antenna placed into the bleeding site under ultra-sonographic guidance and worked at 60 W for 30 seconds on average) and a control group (n=10, with the active bleeding site not treated). After therapy procedures were performed, lactated Ringer's solution resuscitation was then performed in both groups to maintain the mean arterial pressure at 70 mm Hg for 1 hour.