Balancing Image Quality and Iodine Intake: Insights from CT Spectral Imaging of the Portal Vein

26 March 2025 : Clinical Research

Linjie Huang^{ABCDEF 1}, Shengchen Jiang^{CD 1}, Fengqiu Ruan^{C 2}, Liling Long

^{EG 1*}

DOI: 10.12659/MSM.947391

Med Sci Monit 2025; 31:e947391

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Table 6 Comparison of objective and subjective scores of the optimal monochromatic image quality in Groups A, B, and C.

Groups	CT values	Image noise	CNR	SNR	Subjective scores
Extra-hepatic portal vein
Group A	97.29±12.53	13.81±1.72	3.61±0.99	7.15±1.22	3.83±0.32^*
Group B	83.82±10.14	11.95±1.40	2.91±1.23	7.07±0.94	3.75±0.44^*
Group C	90.68±10.07	12.24±1.58	3.32±1.05	7.51±1.15	3.69±0.55
F/H value	10.874	11.846	3.014	1.275	0.580^a
P value	<0.001	<0.001	0.054	0.285	0.748
Intra-hepatic portal vein
Group A	115.67±15.88	15.20±2.16	1.89±0.65	7.70±1.11	3.90±0.41
Group B	95.42±12.39	12.59±1.36	1.53±1.03^*	7.64±1.16	3.87±0.49^*
Group C	105.99±11.36	13.54±1.78	1.71±0.78	7.93±1.15	3.82±0.55
F/H value	16.616	15.611	4.45a	0.536	0.559^a
P value	<0.001	<0.001	0.132	0.587	0.756
Except where indicated, data are presented as means±standard deviations (SD). ^* Data are expressed as median±interquartile range. ^a Non-normal distribution, H test is performed. p

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