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Yeungnam Univ J Med > Volume 26(1); 2009 > Article
Yeungnam University Journal of Medicine 2009;26(1):15-23.
DOI: https://doi.org/10.12701/yujm.2009.26.1.15    Published online June 30, 2009.
Clinical Application of Cardiac Hybrid Imaging in Coronary Artery Disease.
Ihn Ho Cho, Eun Jung Kong
Department of Nuclear Medicine, College of Medicine, Yeungnam University, Daegu, Korea. nuclear126@ynu.ac.kr
Abstract
Constant technological developments in coronary artery disease have contributed to the assessment of both the presence of coronary stenosis and its hemodynamic consequences. Hence, noninvasive imaging helps guide therapeutic decisions by providing complementary information on coronary morphology and on myocardial perfusion and metabolism. This can be done using single photon emission computed tomography(SPECT) or positron emission tomography(PET) and multidetector CT(MDCT). Advances in image-processing software and the advent of SPECT/CT and PET/CT have paved the way for the combination of image datasets from different modalities, giving rise to hybrid imaging. Three dimensional cardiac hybrid imaging helped to confirm hemodynamic significance in many lesions, add new lesions such as left main coronay artery disease, exclude equivocal defects, correct the corresponding arteries to their allocated defects and identify culprit segment. Cardiac hybrid imaging avoids the mental integration of functional and morphologic images and facilitates a comprehensive interpretation of coronary lesions and their pathophysiologic adequacy by three dimensional display of fused images, and allows the best evaluation of myocardial territories and the coronary-artery branches that serve each territory. This integration of functional and morphological information were feasible to intuitively convincing and might facilitate developmnt of a comprehensive non-invasive assessment of coronary artery disease.
Key Words: PET, SPECT, Multidetector CT, Hybrid imaging, Coronary artery disease


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