Abstract
MSCT Coronary Angiography in Diagnosis of Chronic Coronary Occlusions
Highlights
IntroductionAlong with the increasing number of successful endovascular procedures for coronary atherosclerosis, the success rate of chronic occlusion recanalizations is still less than one-third and is associated with a high risk of intraoperative complications [3, 4]
Chronic occlusions comprise about one-fourth of all forms of atherosclerotic lesions of coronary arteries; they are considered the most “unsuitable” lesions for endovascular correction [1, 2].Along with the increasing number of successful endovascular procedures for coronary atherosclerosis, the success rate of chronic occlusion recanalizations is still less than one-third and is associated with a high risk of intraoperative complications [3, 4]
A comparative analysis of the two imaging methods indicates that the sensitivity of MSCT coronary angiography in detecting the coronary calcium (Ca score) exceeds that of the selective coronary angiography (SCG) by about one third; in detecting Ca deposits, the sensitivity of MSCT reaches 97%
Summary
Along with the increasing number of successful endovascular procedures for coronary atherosclerosis, the success rate of chronic occlusion recanalizations is still less than one-third and is associated with a high risk of intraoperative complications [3, 4]. This is due to the insufficient or inadequate (about 74%) diagnostic visualization of the occluded and the downstream segments of the artery when the invasive selective coronary angiography (SCG) is used [5, 6]. At the same time, when combined, the above criteria help predict the success of endovascular correction of coronary artery occlusions [4, 10]
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