A Feasibility Study to Evaluate Replacing Conventional Computed Tomography at 120 KVP with Low Radiation Dose and Low Iodine Intake Based on Body Mass Index-Adapted Abdominal Computed Tomography Angiography in 291 Patients

03 May 2023 : Clinical Research

Xin Fang^1E, Yijun Liu^1A*, Zijing Zhang^1B, Wei Wei^1B, Xu Wang^1F, Beibei Li

^1F, Xiaoyu Tong

^1C

DOI: 10.12659/MSM.939228

Med Sci Monit 2023; 29:e939228

Background Material and Methods Results Discussion Conclusions References

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Table 4 Comparison of objective parameters in abdominal CTA (χ̄±s).

Group	n	CT value (mean HU)	Noise (SD value)	Contrast to noise ratio (CNR)	Figure of merit (FOM)
A1	57	626.95±103.99	14.40±0.91	39.47±6.92	737.65±247.59
B1	40	458.77±73.64	13.26±0.74	30.49±6.56	131.67±54.88
value		8.791	6.596	6.419	17.863
value		<0.001	<0.001	<0.001	<0.001
A2	49	561.43±76.40	14.25±0.97	35.46±6.60	357.03±140.25
B2	53	423.96±59.52	13.65±0.64	26.97±4.95	88.87±32.16
value		10.178	3.653	7.399	13.070
value		<0.001	<0.007	<0.001	<0.001
A3	48	408.46±53.08	13.89±1.06	25.34±4.80	109.95±46.74
B3	44	405.58±48.64	13.59±0.67	25.70±3.86	75.98±28.88
value		0.270	1.631	−0.404	4.231
value		0.788	0.107	0.687	<0.001

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