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

Authors information Article notes Copyright and License information

Introduction Material and Methods Results Discussion Conclusions References

Related articles Order reprints Share article Share by email

View HTML version

Table 4 Comparison of objective scores of 40–140 keV image quality in Group B.

	Extra-hepatic portal vein				Intra-hepatic portal vein
	CT values	Image noise	CNR	SNR	CT values	Image noise	CNR	SNR
40 keV	438.23±105.09	44.18±6.36	9.70±2.38^*	9.99±2.42	429.79±100.91	42.31±10.29^*	5.89±2.44	9.67±2.09
50 keV	301.57±67.94	31.52±4.34	8.95±2.28^*	9.64±2.04	296.91±65.09	30.21±7.48^*	4.40±3.51^*	9.38±1.91
60 keV	217.41±45.68	23.96±3.15	7.57±2.10^*	9.13±1.80	214.99±43.31	22.79±5.28^*	3.72±2.82^*	9.04±1.71
70 keV	165.32±30.95	19.25±2.42	6.30±1.95^*	8.65±1.54	164.09±30.04	19.09±2.62	3.15±2.18^*	8.66±1.52
80 keV	132.21±22.46	16.26±2.00	5.24±1.70^*	8.19±1.33	131.54±20.97	16.03±1.98	2.55±1.38^*	8.27±1.34
90 keV	110.06±16.69	14.28±1.71	4.37±1.47^*	7.77±1.17	110.36±16.01	13.99±1.61	2.01±0.95^*	7.95±1.25
100 keV	94.72±12.77	12.91±1.52	3.62±1.40	7.40±1.04	95.42±12.39	12.59±1.36	1.53±1.03^*	7.64±1.16
110 keV	83.82±10.14	11.95±1.40	2.91±1.24	7.07±0.94	84.81±10.15	11.63±1.21	1.03±1.04^*	7.36±1.08
120 keV	76.27±8.37	11.29±1.32	2.32±1.09	6.82±0.88	77.45±8.72	10.95±1.10	0.66±1.18^*	6.94±1.46^*
130 keV	69.31±8.58^*	10.78±1.26	1.85±1.00	6.59±0.84	71.60±7.96	10.44±1.03	0.38±0.95	6.75±1.35^*
140 keV	64.94±7.97^*	10.37±1.21	1.44±0.93	6.40±0.82	67.18±7.18	10.04±0.98	0.12±0.91	6.62±1.07^*
P value	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001	<0.001
Except where indicated, data are presented as means±standard deviations (SD). ^* Data are expressed as median±interquartile range. p

Back to the Article