title: Comparison of dobutamine stress echocardiography with and without real-time perfusion imaging for detection of coronary artery disease.
abstract: In a pilot study of 27 patients, those who presented with chest pain underwent 2 dobutamine stress echocardiographic studies, 1 with high mechanical index harmonic imaging to analyze wall motion without contrast and 1 with real-time low mechanical index perfusion imaging with intravenous Optison to assess myocardial perfusion and wall motion. All patients then underwent quantitative coronary angiography. Two independent reviewers demonstrated an improvement in sensitivity when analyzing myocardial perfusion. In the 21 patients who had significant coronary stenoses, 14 had abnormal myocardial perfusion detected at peak stress and 7 had abnormal wall motion detected by standard dobutamine stress echocardiography. There was decreased specificity with perfusion imaging by 1 reviewer. The addition of real-time perfusion imaging after intravenous contrast during dobutamine stress echocardiography has the potential to improve detection of coronary artery disease.
authors.affiliation: University of Nebraska Medical Center, Omaha, Nebraska, USA.
authors.forename: Feng
authors.initials: F
authors.lastname: Xie
authors.forename: Jeane M
authors.initials: JM
authors.lastname: Tsutsui
authors.forename: Anna C
authors.initials: AC
authors.lastname: McGrain
authors.forename: Anthony
authors.initials: A
authors.lastname: Demaria
authors.forename: Bruno
authors.initials: B
authors.lastname: Cotter
authors.forename: Harald
authors.initials: H
authors.lastname: Becher
authors.forename: Curtis
authors.initials: C
authors.lastname: Lebleu
authors.forename: Arthur
authors.initials: A
authors.lastname: Labovitz
authors.forename: Michael H
authors.initials: MH
authors.lastname: Picard
authors.forename: Edward L
authors.initials: EL
authors.lastname: O'Leary
authors.forename: Thomas R
authors.initials: TR
authors.lastname: Porter
mesh_terms: D000418:Albumins / Q000008:administration & dosage; D002316:Cardiotonic Agents / Q000008:administration & dosage; D003287:Contrast Media / Q000008:administration & dosage*; D017023:Coronary Angiography; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging* / Q000503:physiopathology; D004280:Dobutamine / Q000008:administration & dosage; D025401:Echocardiography, Stress / Q000379:methods*; D005260:Female; D005466:Fluorocarbons / Q000008:administration & dosage; D005500:Follow-Up Studies; D006801:Humans; D007262:Infusions, Intravenous; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction / Q000502:physiology*; D015588:Observer Variation; D010865:Pilot Projects; D015203:Reproducibility of Results; D012720:Severity of Illness Index
chemical_list: D000418:Albumins; D002316:Cardiotonic Agents; D003287:Contrast Media; C099458:FS 069; D005466:Fluorocarbons; D004280:Dobutamine