Left ventricular volumes, ejection fraction, and regional wall motion calculated with gated technetium-99m tetrofosmin SPECT in reperfused acute myocardial infarction at super-acute phase: comparison with left ventriculography
| Autor: | Hiroyuki Shinbata, Mitsunori Abe, Hironari Tatsuno, Hiroshi Fukuda, Hirokazu Habara, Yukio Kazatani |
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| Rok vydání: | 2001 |
| Předmět: |
Adult
Male medicine.medical_specialty Myocardial Infarction Coronary Angiography Electrocardiography Organophosphorus Compounds Myocardial scintigraphy Internal medicine Coronary Circulation Medicine Humans Radiology Nuclear Medicine and imaging cardiovascular diseases Wall motion Myocardial infarction Angioplasty Balloon Coronary Aged Aged 80 and over Tomography Emission-Computed Single-Photon Ejection fraction business.industry Electrocardiography in myocardial infarction Left ventriculography Gated Blood-Pool Imaging Stroke Volume Organotechnetium Compounds Middle Aged medicine.disease Myocardial Contraction Cardiology Female Radiopharmaceuticals Cardiology and Cardiovascular Medicine business Technetium-99m-tetrofosmin Perfusion |
| Zdroj: | Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology. 7(6) |
| ISSN: | 1071-3581 |
| Popis: | Noninvasive assessment of acute myocardial infarction (AMI) requires information about both myocardial perfusion and left ventricular (LV) function. The automated quantification of electrocardiographic-gated myocardial scintigraphy with technetium-99m tetrofosmin (QGS) can provide this information.Coronary arteriography, QGS, and left ventriculography (LVG) were performed in 229 patients with reperfused AMI within 2 days after onset. All infarcted vascular territories (229 segments) were visualized with scintigraphic perfusion images. The mean wall motion score (WMS) was 15.9+/-2.8 by means of QGS and 16.3+/-2.9 by means of LVG. The correlation between WMS obtained by means of QGS and that obtained by means of LVG was close (y = 0.913x + 1.016, r = 0.94, P.001), but that obtained by means of QGS was significantly lower than that obtained by means of LVG (P.0001). Total agreement for the assessment of regional wall motion reached 75 % (kappa, 0.66). Although the LV values obtained by means of QGS and LVG correlated well (end-diastolic volume, r = 0.67, P.0001; end-systolic volume, r = 0.79, P.0001; ejection fraction, r = 0.78, P.0001), end-diastolic volume and ejection fraction tended to be underestimated with QGS.QGS data were considered to be useful in detecting infarcted vascular territory and LV function, even in AMI, within 2 days after onset. |
| Databáze: | OpenAIRE |
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