The following table or figure may be downloaded to PowerPoint for personal use in teaching and presentations. This feature is available to all subscribers to the journal.

You MUST read and follow the guidelines at Request to Reproduce AJR Content if you are distributing or using AJR content beyond academic use (limited distribution, non-revenue producing, or educational purposes).

(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 3C —Accuracy of measured percentage stenosis. Values are means; error bars indicate mean ± 0.5 SD; light gray, 3-mm vessel diameter; dark gray, 5-mm vessel diameter. Graph shows effects of attenuation protocols of cardiac CTA imaging on accuracy of detection of 75% stenosis. High-attenuation (500 H) protocol led to significant underestimation of stenosis in smaller vessels but was accurate in depicting larger vessels. Low-attenuation (200 H) protocol led to slight overestimation of stenosis. Imaging accuracy and stability did not differ significantly from moderate-attenuation protocols (300 and 350 H).