Application of 64 slice spiral CT low dose technique in paranasal sinus scanning in children
- VernacularTitle:64排螺旋CT低剂量技术在儿童副鼻窦扫描中的应用效果评价
- Author:
Hangmei CAI
1
;
Huiqun LU
;
Xiaojie XU
;
Xiaopeng DAI
;
Yinxin DING
;
Xiangyang YE
;
Bo YE
Author Information
- Keywords: children; sinus; low dose CT scanning
- From: Journal of Clinical Medicine in Practice 2018;22(11):109-110,113
- CountryChina
- Language:Chinese
- Abstract: Objective To explore the application of 64 slice low dose spiral CT in pediatric paranasal sinus examination.Methods Sixty children with paranasal sinuses were randomly divided into three groups(control group,low dose 1 group,low dose 2 group),and were given conventional dose scanning(100 KV in tube voltage,100 mA in tube current),low dose scanning(100 KV in tube voltage,45 mA in tube current),and low dose scanning (100KV in tube voltage,25 mA in tube current).The single scan weighted CT dose index (CTDIw) of each patient was recorded and compared;and the quality of the scanned images of each group was evaluated by two chief physicians by blind method.Results Compared with conventional dose group,low dose 1,2 groups had significantly lower CTDIw,and the dose decreased for 59.23％ and 72.42％ respectively.The image quality of the low-dose 1 group did not change significantly,and all the images could meet the requirements of clinical diagnosis;but the image quality of the low-dose 2 group decreased significantly,and the images of 3 patients could not meet the requirements of clinical diagnosis.Conclusion Appropriate reduction of scanning parameters for paranasal sinuses children can not only obtain good quality images,but also effectively reduce the radiation dose of patients.
