Article Abstracts | August 2007
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Electron-Multiplying CCD Camera in X-ray Imaging
A solid-state x-ray image intensifier is used for diagnostic and interventional medical imaging procedures.
by Andrew Kuhls-Gilcrist and Stephen Rudin, Toshiba Stroke Research Center
With the onset of improved, patient-specific treatments for vascular disease, along with advancing diagnostic techniques, there is an increasing need for high-resolution images obtainable in real time. Current state-of-the-art medical x-ray image intensifiers have inherent limitations and are being replaced with flat panel detectors.
Flat panel detectors are used for dynamic x-ray imaging in fluoroscopy and angiography because they do not suffer from veiling glare or from pincushion or S-shaped distortion. However, their performance has been disappointing for low-exposure-per-frame procedures because they suffer from excessive instrumentation noise, lag and ghosting. Additionally, both detectors have resolution capabilities of only roughly three line pairs per millimeter...
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