Preliminary results reported with a 16-slice mobile CT angiography

doi:10.3877/cma.j.issn.2095-9141.2018.05.002

Abstract

Abstract:

Objective

To investigate the stability, imaging quality and radiation dose index (CTDIvol) of domestic 16-slice mobile CT in cerebral angiography (CTA).

Methods

Four adult volunteers, who were admitted to the Affiliated BaYi Brain Hospital from July to Augest 2018, were selected in our clinical trial. The 16-slice mobile CT was used to perform cerebral vascular enhanced helical scanning to obtain the original tomographic image. The three-dimensional brain was displayed by volume rendering (VR) and maximum intensity projection (MIP) using Anythink CT Plus image processing software. CTA images for another 4 cases of 8-slice mobile CT were compared, and the stability, imaging quality and CTDIvol of the two groups were analyzed.

Results

The 16-slice mobile CT intracranial angiography was stable, and the Willis ring, anterior cerebral artery, middle cerebral artery and posterior cerebral artery and its branch vessels were clearly displayed. The CTDIvol of the 16-silce mobile CT in the volume rendering (VR) was less than CTDIvol of the 8-slice CT (20.60 mGy vs. 29.30 mGy, P<0.05).

Conclusion

The 16-slice mobile CT helical scanning can obtain stable CTA imaging and clearly show cerebral angiography images. CTDIvol is significantly lower than 8-slice mobile CT in the volume range.

Key words: 16-slice mobile CT, Cerebral angiography, Radiation dose index

Zhiqiang Zhang, Fei Li, Zhenfang Wang, Boyun Ding, Qiusheng Dai, Ruxiang Xu. Preliminary results reported with a 16-slice mobile CT angiography[J]. Chinese Journal of Neurotraumatic Surgery(Electronic Edition), 2018, 04(05): 260-263.

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References 17

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参数	16排移动CT	8排移动CT
管电压（kV）	120	140
管电流（mA）	80	70
扫描长度（mm）	240	230
CTDIvol（mGy）	20.60	29.30
层厚（mm）×层距（mm）	1.25×1.10	1.25×1.25

参数	16排移动CT	8排移动CT
管电压（kV）	120	140
管电流（mA）	80	70
扫描长度（mm）	240	230
CTDIvol（mGy）	20.60	29.30
层厚（mm）×层距（mm）	1.25×1.10	1.25×1.25

?	?	方差方程的Levene检验		均值方程的t检验
?	?	F	Sig.	t	df	Sig.（双侧）	均值差值
CTDIvol	假设方差相等	13.366	0.011	-50.341	6	0.000	-8.700
CTDIvol	假设方差不相等	?	?	-50.341	3.402	0.000^a	-8.700

?	?	方差方程的Levene检验		均值方程的t检验
?	?	F	Sig.	t	df	Sig.（双侧）	均值差值
CTDIvol	假设方差相等	13.366	0.011	-50.341	6	0.000	-8.700
CTDIvol	假设方差不相等	?	?	-50.341	3.402	0.000^a	-8.700

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