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Interventional-Coronary Angiography

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Interventional- Coronary Angiography with multi slice computed tomography
Conventional X-ray coronary angiography is a method for the assessment of coronary
Vessel disease. It is an invasive and high risky procedure including a small risk of coro nary events such as arrhythmia, stroke, coronary artery dissection and death. Fur thermore, the coronary catheterisation procedure involves the risk of internal bleed ing,dissections,post procedural events during hospitalisation and discomfort to the patient. Multi-slice Coronary Computed Tomography (MSCCT) scanners are widely avail able diagnostic options in the field of intervention. These scanners are widely accepted by the technicians by helping them to follow the non-invasive coronary angiography …show more content…

The new generation of CT scanners(Multi detecter) can operate in an increased ro tation rate and can produce up to four slices simultaneously. Partial scan-reconstruction techniques, which apply a 90180 reconstruction algorithm, improve the temporal res olution to 250 ms. These recent developments in the field of intervention allow high
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Calcification Detection in Coronary Arteries using Image Processing speed scanning of large volumes with a high in-plane resolution, as well as an im proved Z-axis resolution with a substantial improvement in the inter-slice correlation and these algorithms reduce the effective slice thickness at an acceptable increase in noise and reduction in contrast [5]. The modifications in the reconstruction software have further reduced the virtual temporal resolution at Tachy Cardia by combining the data from several heart slices in one image, shortening the effective acquisition intervals to 125 ms. The in-plane spatial resolution of the MSCCT scanner is nine line pairs per cm.It used retrospective gating, which allows post-scan acquisition window selection and optimum result.This approach improves the image quality and decreases the sensitivity to arrhythmia and ECG

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