Table 1.
TimeTRIG, TimeSD, and Scan Delay Ratio between scan timing adequacy
| All patients (n = 114) | Early (n = 16) | Appropriate (n = 76) | Late (n = 22) | p value | |
|---|---|---|---|---|---|
| TimeTRIG (s) | 16.4 ± 2.5 (11.1–23.4) | 16.9 ± 2.5 (12.7–23.3) | 16.6 ± 2.4 (12.1–23.4) | 14.0 ± 1.5 (11.1–17.2) | <0.001 |
| TimeSD (s) | 16.8 ± 3.2 (5.8–21.1) | 11.3 ± 3.0 (5.8–20.3) | 17.5 ± 2.5 (10.1–21.1) | 18.5 ± 0.8 (16.8–19.9) | <0.001 |
| SDR | 1.1 ± 0.3 (0.3–1.6) | 0.7 ± 0.2 (0.3–1.1) | 1.1 ± 0.2 (0.7–1.5) | 1.3 ± 0.1 (1.0–1.6) | <0.001 |
SDR, scan delay ratio.
Note. TimeTRIG = the time from contrast material injection to the bolus-tracking trigger of 100 HU at the abdominal aorta. TimeSD = the scan delay from the bolus-tracking trigger of 100 HU to the initiation of late hepatic arterial or pancreatic parenchyma phase scan.
Data are means ± 1 standard deviation with ranges in parentheses.