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.)

Fig. 5. Correlation between ideal threshold (mean soft-tissue CT
number plus 3 standard deviations [SD]) at bottom of heart (low level) and
patient's body weight. As body weight increases, ideal soft-tissue attenuation
increases as function of increasing SD (y = 0.4839x +
26.179).