Abstract

The recently introduced multidetector-row CT(MDCT), with sub-second rotation times and dedicated cardiac reconstruction algorithms, offers a new opportunity in cardiac CT imaging; in particular, as it can perform highresolution MDCT coronary angiography. The improved spatial and temporal resolutions of MDCT have made it possible to assess the myocardium. 1-3) Contrast-enhanced, two-phase MDCT reveals an early myocardial perfusion defect and late enhancement of acute myocardial infarction(MI), which is consistent with the findings observed in nuclear imaging and on contrast-enhanced MRI. 4) The infarct size determined by delayed enhanced MDCT and delayed enhanced MRI shows good correlation with that found in the pathology of an animal model. 5)

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