The 83rd Annual Scientific Meeting of the Japanese Circulation Society

Symposium
Recent Advance in Cardiac Imaging for Assessment of Myocardial Disorder

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Chairperson: Tohru Masuyama
(Cardiovascular Medicine, Hyogo College of Medicine)
Changes in myocardial properties and/or perfusion have been assessed from the motion of the myocardial wall rather than by analyzing the image of the heart itself. Recent development of cardiac myocardial imaging is so remarkable that cardiac imaging modalities have become indispensable not only in the diagnosis of cardiac diseases but in the determination of therapeutic strategies. Echocardiography provides useful information about the distribution of myocardial disorder by reconstructing 2D polar map images of the myocardial strain. Although cardiac CT examination is widely used for detecting coronary lesions, attempts have also been made to assess perfusion status and tissue properties. Cardiac MRI is useful for the diagnosis and the determination of therapeutic strategy by assessing tissue characterization such as myocardial necrosis, fibrosis and edema in addition to myocardial function. SPECT (single photon emission computed tomography) and/or PET (positron emission tomography) provide useful information about myocardial metabolism such as sympathetic nerve activity, fatty acid metabolism, glucose metabolism depending on the used tracers. These images may be used to assess inflammation or activity of the myocardial disorder. Another big advance is the advent of fusion imaging where images of the multimodalities are displayed on the same screen to provide different information with the anatomic relevance. This advent has certainly improved the accuracy of the diagnosis of cardiac diseases. In this symposium, I would like to invite to present the new findings of updated cardiac imaging modalities which have large impact on the diagnosis and/or determination of therapeutic strategy of cardiac diseases.

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