|
Parameter
|
Fixed dose protocol (n = 50)
|
LBW protocol (n = 50)
|
p value
|
|---|
|
Arterial phase
|
|
Liver SNR
|
5.91 ± 1.88
|
5.58 ± 1.63
|
0.346
|
|
Liver CNR
|
1.72 ± 1.31
|
1.99 ± 1.27
|
0.123
|
|
Liver CEI, HU
|
16.10 ± 9.65
|
23.02 ± 10.84
|
< 0.001
|
|
Pancreas SNR
|
5.59 ± 3.55
|
5.90 ± 2.37
|
0.130
|
|
Pancreas CNR
|
2.92 ± 1.76
|
3.85 ± 2.04
|
0.004
|
|
Pancreas CEI, HU
|
50.66 ± 17.29
|
66.45 ± 19.78
|
< 0.001
|
|
Kidney SNR
|
7.38 ± 4.17
|
8.19 ± 2.61
|
0.016
|
|
Kidney CNR
|
7.90 ± 4.10
|
9.60 ± 3.55
|
0.003
|
|
Kidney CEI, HU
|
122.17 ± 35.68
|
145.00 ± 42.53
|
0.002
|
|
Aorta SNR
|
16.07 ± 5.75
|
14.56 ± 4.89
|
0.147
|
|
Aorta CNR
|
16.57 ± 6.42
|
17.47 ± 5.86
|
0.379
|
|
Portal venous phase
|
|
Liver SNR
|
8.10 ± 1.96
|
8.22 ± 2.13
|
0.766
|
|
Liver CNR
|
4.48 ± 1.70
|
4.37 ± 1.61
|
0.730
|
|
Liver CEI, HU
|
59.61 ± 15.21
|
59.22 ± 11.14
|
0.796
|
|
Pancreas SNR
|
5.78 ± 2.37
|
4.91 ± 1.75
|
0.079
|
|
Pancreas CNR
|
2.69 ± 1.66
|
2.13 ± 1.30
|
0.065
|
|
Pancreas CEI, HU
|
55.15 ± 20.42
|
50.64 ± 13.86
|
0.220
|
|
Kidney SNR
|
9.54 ± 2.58
|
10.05 ± 3.10
|
0.370
|
|
Kidney CNR
|
9.95 ± 3.56
|
9.18 ± 2.21
|
0.198
|
|
Kidney CEI, HU
|
78.97 ± 58.75
|
103.56 ± 30.35
|
< 0.001
|
|
Portal vein SNR
|
10.42 ± 3.01
|
9.33 ± 3.37
|
0.015
|
|
Portal vein CNR
|
8.92 ± 3.31
|
7.57 ± 2.31
|
0.020
|
- Data are means ± standard deviations
- LBW lean body weight, SNR signal-to-noise ratio, CNR contrast-to-noise ratio, CEI contrast enhancement index, HU hounsfield unit
