Journal of Diagnostic Medical Sonography

 

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Journal of Diagnostic Medical Sonography, Vol. 18, No. 1, 18-22 (2002)

Feasibility of Performing Real-Time Myocardial Contrast Echocardiography During Clinical Dobutamine Stress Echocardiography in Technically Difficult Patients

S. Michelle Bierig

St. Louis University Health Science Center, St. Louis, Missouri

Steven C. Herrmann

St. Louis University Health Science Center, St. Louis, Missouri

Myocardial contrast echocardiography (MCE) hasemerged as an alternative to nuclear medicineperfusion imaging. The aim of this study was toevaluate the feasibility of performing and theinterpretation of MCE for perfusion imaging in aclinical laboratory. The study population consistedof 150 consecutive patients referred for dobutaminestress echocardiography (DSE) to determine thepresence of myocardial ischemia. Echocardio-graphicperfusion images were digitized at rest andat peak dobutamine infusion for later review. A totalof 12 myocardial segments in the apical four andtwo chamber views were graded as no perfusion,minimal perfusion, definite perfusion, or not able toevaluate. Of 3600 possible segments, a total of 2926(81%) were able to be graded at either rest or peakdobutamine. At rest, 79% of segments were gradedfor perfusion (1419 of 1800 segments). At peakdobutamine infusion, 84% of segments were gradedfor perfusion (1507 of 1800 segments). The resultsdemonstrate that MCE is clinically feasible toperform and interpret during DSE on a routine dailybasis.

Key Words: myocardial contrast echocardiography • dobutamine stress • echocardiography


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