Computed tomography (CT) imaging have undergone a rapid evolution during the past few years. The high temporal and spatial resolution of the modern multidetector row CT (MDCT) systems permit non-invasive coronarography examination with high accuracy. The 16-64 slice CT imaging can identify hemodinamcally relevant coronary stenosis with high sensitivity (83-99%) and specificity (93-98%). One-thousand-thirty-two coronary CT angiography exams were performed between September 2005 and January 2009 with 16-slice (494 exams) and Dual-Source 2×64 slice (838 exams) CT systems. The overall image quality of the Dual-Sorce CT exceeds the image quality of the 16-slice systems as well as the 64-slice systems with conventional gantry architecture. The coronary CT angiography may have an important role in the differential diagnosis of chest pain in patients with low to medium cardiovascular risk. According to recent international trials the average effective radiation dose associated with coronary CT angiography is 12 mSv. However, this can be reduced significantly (to 1-3 mSv) by utilizing sophisticated scan protocols. Thus, improved education on dose saving strategies for health care professionals who perform coronary CT examinations is warranted.
|Number of pages||7|
|Publication status||Published - Dec 1 2009|
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