A head-to-head comparison of infusion and bolus doses of adenosine for stress myocardial contrast echocardiography.

Background: This study was a head-to-head, intraindividual comparison of the diagnostic accuracy and side effect profile of bolus and infusion administration of adenosine for stress myocardial contrast echocardiography (MCE).

Methods: Adenosine MCE was performed in 64 subjects, referred for stress thallium-201 single-photon emission computed tomography (SPECT) for known or suspected CAD. Each patient received adenosine by multiple boluses (6-12 mg/bolus) and infusion (140 mug/kg per min for 6 min) forms in random order, given at least 20 minutes apart.

[Myocardial viability in a single-vessel disease: the role of a dobutamine stress echocardiography].

Objective: To investigate a group of patients that have a significant lesion in a single-vessel and to demonstrate whether or not the sensitivity and specificity of a dobutamine stress echocardiography (DSE) was valuable in the evaluation of myocardial viability for these patients.

Methods: Twenty patients who had undergone percutaneous transluminal coronary angioplasty (PTCA) were studied. This group was evaluated 2 to 7 days (3.

Myocardial contrast echocardiography in patients with suspected or known coronary artery disease: comparison with myocardial nuclear scintigraphy.

Objective: To compare myocardial contrast echocardiography (MCE) using PESDA and adenosine in bolus (ADN) with myocardial nuclear scintigraphy (NS) in patients (pts) undergoing routine investigation with a high probability of having coronary artery disease.

Methods: This study comprised 125 pts (85 men) with 58.4 +/- 10.