Personalization of CM Injection Protocols in Coronary Computed Tomographic Angiography (People CT Trial)
Table 5
Dose report for different scan protocols and groups.
Parameter
Flash
AS
Helical
Effective tube current (mAs)
Group BW
494 ± 81
354 ± 63
430 ± 99
Group LBW
511 ± 79
357 ± 80
454 ± 80
Group CO
508 ± 74
352 ± 62
405 ± 113
CTDIvol (mGy)
Group BW
2.5 ± 1.4
19.8 ± 15.7
42.0 ± 34.7
Group LBW
2.5 ± 1.3
17.1 ± 13.1
42.7 ± 17.5
Group CO
2.3 ± 1.0
22.2 ± 28.9
30.9 ± 22.9
Total DLP (mGy cm)
Group BW
81 ± 31
290 ± 198
664 ± 471
Group LBW
78 ± 27
273 ± 195
730 ± 272
Group CO
74 ± 25
271 ± 245
521 ± 385
Effective dose (mSv)
Group BW
0.9 ± 0.5
5.4 ± 3.7
15.4 ± 12.1
Group LBW
0.8 ± 0.4
6.0 ± 4.9
11.8 ± 3.1
Group CO
0.8 ± 0.4
5.2 ± 4.5
9.9 ± 7.4
Note. Values are presented as mean ± standard deviation. Flash = high-pitch protocol; AS = adaptive sequence protocol; Helical = helical protocol. BW = body weight; LBW = lean body weight; CO = cardiac output; CTDIvol = CT dose index; DLP = dose length product. No significant difference was found in all radiation dose parameters between all groups (all ).
