Comparison of dobutamine stress echocardiography and exercise stress Thallium-201 SPECT for detection of myocardial ischemia after acute myocardial infarction treated with thrombolysis

Mario Previtali, Giorgio Cannizzaro, Luca Lanzarini, Giuseppe Calsamiglia, Arnaldo Poli, Raffaela Fetiveau

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In order to compare the ability of dobutamine stress echocardiography (DSE) and exercise Thallium-201 SPECT to detect myocardial ischemia in patients with myocardial infarction (MI) treated with thrombolysis, 43 prospectively selected patients with M1 treated with thrombolysis underwent within 1 month from MI DSE, stress-redistribution-reinjection Thallium-201 SPECT and coronary angiography. The echocardiographic and scintigraphic images were analyzed for the presence of myocardial ischemia using a 11- segment left ventricular model. DSE and exercise Thallium-201 SPECT detected myocardial ischemia in the infarct zone in 72% and 72% (31/43) of patients and ischemia at a distance in 12% (5/43) and 19% (8/43) of patients with a concordance of 67% and 88%, respectively. A significant agreement between DSE and exercise Thallium SPECT was found in the evaluation of the extent of both myocardial necrosis and stress-induced myocardial ischemia. DSE and exercise Thallium SPECT showed similar sensitivity (79 vs 76%), specificity (60 vs 60%) and accuracy (77 vs 74%) for detection of a critical stenosis of the infarct-related artery; there was also no significant difference between the tests in sensitivity, specificity and accuracy for detection of the multivessel disease. In conclusion, initially after thrombolyzed MI, DSE and exercise Thallium-201 SPECT detect myocardial ischemia in the infarct zone in a high proportion of patients and show a similar accuracy for the diagnosis of a critical stenosis of the infarct-related coronary artery and of the multivessel disease.

Original languageEnglish
Pages (from-to)195-204
Number of pages10
JournalThe International Journal of Cardiac Imaging
Volume15
Issue number3
DOIs
Publication statusPublished - 1999

Fingerprint

Stress Echocardiography
Thallium
Single-Photon Emission-Computed Tomography
Myocardial Ischemia
Myocardial Infarction
Exercise
Pathologic Constriction
Coronary Angiography
Coronary Artery Disease
Necrosis
Ischemia
Arteries
Sensitivity and Specificity

Keywords

  • Dobutamine stress echocardiography
  • Exercise Thallium SPECT
  • Myocardial infarction
  • Post-infarction ischemia

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine
  • Radiological and Ultrasound Technology

Cite this

Comparison of dobutamine stress echocardiography and exercise stress Thallium-201 SPECT for detection of myocardial ischemia after acute myocardial infarction treated with thrombolysis. / Previtali, Mario; Cannizzaro, Giorgio; Lanzarini, Luca; Calsamiglia, Giuseppe; Poli, Arnaldo; Fetiveau, Raffaela.

In: The International Journal of Cardiac Imaging, Vol. 15, No. 3, 1999, p. 195-204.

Research output: Contribution to journalArticle

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