The application effect of different contrast agent injection schemes in neck enhanced CT examination
10.3969/j.issn.1002-1671.2024.12.033
- VernacularTitle:不同对比剂注射方案在颈部增强CT检查中的应用效果
- Author:
Zhiyu JIA
1
;
Yanhua ZHOU
;
Yaqian LONG
;
Xinguan YANG
Author Information
1. 桂林医学院,广西 桂林 541001
- Keywords:
neck;
computed tomography;
contrast agent;
injection scheme;
image quality
- From:
Journal of Practical Radiology
2024;40(12):2076-2079
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the influence of different contrast agent injection schemes on imaging quality in neck enhanced CT examination.Methods A total of 150 patients who underwent neck enhanced CT examination were selected and randomly divided into three groups:groups A,B,and C,with 50 cases in each group.Group A adopted individualized injection scheme,group B used three-phase dual-flow contrast agent injection scheme,and group C used measured constant-speed injection scheme,respectively.The objective and subjective evaluation methods were used to assess the image quality of cervical vessel and non-vessel structures.Results Among the three groups of contrast agent injection schemes,the CT values of group A and group B were higher than those of group C except for the aortic arch and submandibular gland in objective evaluation,and the contrast-to-noise ratio(CNR)of group A and group B except for the left common carotid artery and right common carotid artery bifurcation was higher than that of group C.In subjective evaluation,there was no statistically significant difference in image quality among the three groups(P＞0.05),and group B effectively reduced the impact of hardening artifacts.Conclusion The post-injection dual-flow contrast agent injection scheme can achieve the same enhancement effect as other injection schemes while ensuring image quality and reducing the amount of contrast agent used in the examination.
