Technical Aspects of Cardiac CT - ImPACT CT Scanner Evaluation ...
Technical Aspects of Cardiac CT - ImPACT CT Scanner Evaluation ...
Technical Aspects of Cardiac CT - ImPACT CT Scanner Evaluation ...
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<strong>Cardiac</strong> scanner spatial resolution<br />
• <strong>Scanner</strong> limiting spatial resolution:<br />
– Scan plane: up to 25 lp/cm (0.2 mm)<br />
– Z-axis: up to 15 lp/cm (0.33 mm)<br />
• Sharpest filters not utilised in cardiac <strong>CT</strong>A<br />
– high noise<br />
Line pair<br />
(object plus<br />
gap)<br />
10 lp/cm ≡ 0.5 mm<br />
Harefield <strong>Cardiac</strong> Course<br />
Images from Lin, EC et al; http://emedicine.medscape.com/article/1603072-overview