摘要
目的分析低剂量螺旋CT在口腔颌面骨折中应用价值。方法56例口腔颌面骨折患者入选,26例接受常规剂量螺旋CT扫描(常规组),30例行低剂量螺旋CT扫描(低剂量组),对比其重建图像后不同体位图像质量、图像噪声(软组织窗噪声、骨窗噪声)、辐射剂量。结果低剂量组对下颌骨骨折的检出率高于常规组(P<0.05);两组在水平位、矢状位、冠状位图像质量评分比较差异无统计学意义(P>0.05);低剂量组在水平位、矢状位的软组织窗噪声及矢状位、冠状位的骨窗噪声高于常规组(P<0.05);低剂量组CTDIvol、DLP、ED均较常规组低(P<0.05)。结论低剂量螺旋CT应用于口腔颌面骨折可提高骨折检出率,在不影响图像质量情况下减少辐射剂量,有推广价值。
Objective To analyze the value of low-dose spiral CT in oral and maxillofacial fractures.Methods A total of 56 patients with oral and maxillofacial fractures were selected as subjects.Among them,26 patients underwent routine-dose spiral CT scan (routine group) and 30 patients underwent low-dose spiral CT scan (low dose group).The image quality,image noise (soft tissue window noise,bone window noise) and radiation dose of different body positions after image reconstruction were compared between the two groups.Results The detection rate of mandible fractures in the routine group was higher than that of the low dose group (P<0.05).There was no significant difference in thehorizontal,sagittal or coronal image quality scores between the two groups (P>0.05). The horizontal and sagittal soft tissue window noise,sagittal andcoronal bone window noise in the low dose group were higher than those in the routine group (P<0.05).The CTDIvol,DLP and ED of the low dose group were lower than those of the routine group (P<0.05).Conclusion Low-dose spiral CT can improve the detection rate of oral and maxillofacial fractures.It can reduce the radiation dose without affecting image quality.
作者
吕志军
吴修胤
袁立华
李伟
LV Zhi-jun;WU Xiu-yin;YUAN Li-hua(Department of Stomatology,Jinan People's Hospital,Jinan 271100,Shandong Province,China)
出处
《中国CT和MRI杂志》
2019年第10期8-10,共3页
Chinese Journal of CT and MRI
基金
山东省口腔生物医学重点实验室开放课题基金资助项目(SDKQ201404)
关键词
低剂量
螺旋CT
口腔
颌面骨折
Low Dose
Spiral CT
Oral
Maxillofacial Fractures
