Sunday, April 24, 2016

Coronary Calcium burden's detection by IVUS vs. angiography ( Acute stent fracture in Left main during primary PCI, Presentation in ‪#‎NIC2016‬)

The extent of coronary artery calcium strongly correlates with the degree of atherosclerosis and, therefore, with the rate of future cardiac events. Coronary angiography has lowto-moderate sensitivity compared with grayscale intravascular ultrasound (IVUS) or optical coherence tomography (OCT), the gold standard for coronary calcium detection; but coronary angiography has a
relatively high positive predictive value.
The prevalence of severe calcium defined as superficial in nature with greater than 180 degree arc( which is detected by IVUS) , is estimated to present itself in 12% of cases using angiographic imaging. When intravascular ultrasound (IVUS) guidance is used, it is seen in approximately 26%of cases.

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