New method of estimating myocardial infarct size using technetium-99m pyrophosphate and thallium-201 dual single photon emission computed tomography imaging |
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| Authors: | Maruyama Y Kato T Ito H Tanaka S Yoshimoto N Kishi Y Numano F |
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| Institution: | Third Department of Internal Medicine, Saitama Medical Center, Saitama Medical School, Kawagoe city, Japan. |
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| Abstract: | A new method was devised to estimate infarct size using dual single photon emission computed tomography with thallium-201 and technetium-99m pyrophosphate. Designating the ratio of infarct area to whole myocardial volume as %MI, the correlation of %MI with other markers of left ventricular dysfunction was examined: peak creatine kinase, ejection fraction and left ventricular asynergy. As %MI correlated well with these markers, it is considered that %MI will be useful for estimating infarct size and predicting the severity of left ventricular dysfunction in the early stage of acute myocardial infarction. |
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