Quantitative Digital Angiographic Techniques

There is an increasing demand for the objective and reproducible assessment of coronary arterial dimensions and for the functional significance of coronary obstructions to study the efficacy of new recanalization techniques in the catheterization laboratory, to evaluate new approaches to achieve regression or no-growth of coronary atherosclerosis and also as a means for diagnostic and therapeutic decision making during the cardiac catheterization procedure. This last application requires the use of digital cardiac imaging systems with the capability to store the images online on real-time disks; at the present time, the other applications are usually evaluated off-line from 35mm cinefilm.

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