Age, scanning length, and maximum transverse neck diameter of subjects for examinations performed using FTC and combined ATCM
| FTC* | Combined ATCM* | P Value† | |
|---|---|---|---|
| Age | 61.6 ± 15.35 (61.0) | 58.96 ± 16.62 (59.0) | .669 |
| Scanning length (cm) | 43.90 ± 55.87 (32.40) | 44.39 ± 55.79 (33.60) | .336 |
| Maximum transverse neck diameter (cm) | 12.91 ± 1.36 (12.70) | 12.67 ± 1.60 (12.30) | .503 |
Note:—FTC indicates fixed tube current; ATCM, automatic tube current modulation.
* Mean ± SD (median).
† From the Mann-Whitney U test.