Table 3.

Quantitative Analysis Results in Conventional and Split-Bolus Groups

Parameter	Conventional Group					Split-Bolus Group					P	ICC (95% CI)
	N	Mean	SD	Median	Min-Max	N	Mean	SD	Median	Min-Max
Thoracic aorta attenuation (HU)	102	238.1	40.0	238	137–378	100	237.8	53.6	244.5	127–369	0.97 b	0.982 (0.977–0.986)
Pulmonary artery attenuation (HU)	102	180.7	65.9	175	74–407	100	167.5	42.4	160.5	93–386	0.241 a	0.988 (0.984–0.991)
Normalised Pulmonary artery attenuation	102	0.78	0.28	0.76	0.30–1.59	100	0.74	0.24	0.69	0.36–1.61	0.257 a
Portal vein attenuation (HU)	102	90.3	24.6	89.0	45–179	100	126.4	45.4	158.5	105–233	<0.001 b	0.990 (0.986–0.992)
Normalised portal vein attenuation	102	0.39	0.12	0.36	0.19–0.80	100	0.72	0.20	0.65	0.41–1.20	<0.001 a
Liver attenuation (Average of left+right lobe) (HU)	84	71.8	6.6	71.0	61–102.5	79	108.2	11.4	106.5	85.5–137.5	<0.001 a	0.992 (0.989–0.994)
Normalised liver attenuation	84	0.31	0.06	0.30	0.19–0.51	79	0.48	0.12	0.45	0.27–0.83	<0.001 a
Left liver lobe attenuation (HU)	84	73.6	7.8	73.0	60.0–102.0	79	109.6	11.6	108.0	87.0–144.0	<0.001 a	0.968 (0.956–0.976)
Right liver lobe attenuation (HU)	84	70.1	6.4	69	59.0–103.0	79	105.0	13.4	102.5	84.0–138.0	<0.001 a	0.974 (0.964–0.981)
Pleura (HU)	32	50.6	13.8	51.5	27–80	23	79.0	16.6	76	48–112	<0.001 b	0.918 (0.863–0.952)
Normalised Pleura	32	0.22	0.07	0.23	0.10–0.37	23	0.33	0.008	0.32	0.20–0.50	<0.001 b
Noise (HU)	102	10.8	0.81	11	9–13	100	11.05	1.0	11	9–14	0.117 a	0.724 (0.651–0.783)
Hepatic contrast-to-noise ratio	84	0.77	0.64	0.69	−0.50–3.04	79	4.05	0.98	4.0	2.14–7.56	<0.001 a	0.975 (0.966–0.942)
Contrast-to-noise ratio of the thoracic aorta	102	16.20	3.81	16.1	7.27–28.64	100	15.9	5.28	15.52	5.73–32.56	0.663 a	0.955 (0.941–0.966)

^aMann - Whitney U test.

^bStudent’s t test.