Preliminary study on the reduction of streak artifacts in thyroid CT examination with optimized position in prone position
10.3969/j.issn.1002-1671.2024.04.032
- VernacularTitle:俯卧位优化体位在甲状腺CT检查中减少带状伪影的初步研究
- Author:
Zhiyu JIA
1
,
2
;
Yanhua ZHOU
;
Yaqian LONG
;
Hong ZHANG
;
Xinguan YANG
Author Information
1. 桂林医学院,广西 桂林 541000
2. 桂林市人民医院放射科,广西 桂林 541002
- Keywords:
thyroid;
computed tomography;
streak artifacts;
influencing factors;
optimized position
- From:
Journal of Practical Radiology
2024;40(4):650-653,673
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the factors influencing the image quality of thyroid CT and the application value of optimization schemes in reducing streak artifacts in thyroid CT examinations.Methods A retrospective review of the data of 141 patients who underwent thyroid enhanced CT examinations was conducted to analyze the factors affecting image quality.After determining the influencing factors,a self-controlled study was conducted on 48 patients who underwent thyroid CT examinations to analyze the feasibility of the optimization scheme.Results The patients'body mass index(BMI),neck circumference,pharynx-jaw angle,and pharynx-jaw angle-to-neck circumference ratio showed statistically significant differences in their impact on image quality(P<0.05).Compared to the conventional scheme,the optimization scheme showed significantly higher subjective and objective image evaluations.The optimization scheme also significantly improved the diagnostic performance of the images,with statistically significant differences(P<0.05).There was no statistically significant difference in radiation dose between the two positions(P>0.05).Conclusion The optimization scheme can effectively reduce streak artifacts in thyroid CT examinations.
