【摘要】 目的 探讨多层螺旋CT低剂量扫描对儿童副鼻窦炎的诊断价值。方法 回顾性选取2024年1—12月安阳市人民医院收治的副鼻窦炎患儿80例为研究对象，按扫描剂量分为常规扫描组和低剂量扫描组，各40例。比较常规扫描组和低剂量扫描组一般资料，低剂量扫描和常规剂量扫描对儿童副鼻窦炎的检出情况、图像质量评分、辐射剂量及影像学图像。将低剂量扫描组患儿按年龄分为幼儿组(19例)和学龄组(21例)，比较2组图像质量评分。结果 常规扫描组检出阳性38例，阴性2例；低剂量扫描组检出阳性36例，阴性4例。2组诊断准确性差异无统计学意义(P>0.05)；低剂量扫描组和常规扫描组图像质量评分差异无统计学意义(P>0.05)；低剂量扫描组辐射剂量低于常规扫描组(P<0.05)；低剂量扫描组剂量长度乘积(DLP)值、容积CT剂量指数(CTDIvol值)均低于常规扫描组(P<0.05)；幼儿组和学龄组图像质量评分经比较，差异无统计学意义(P>0.05)。结论 多层螺旋CT低剂量扫描对儿童副鼻窦炎诊断价值与普通CT差异不大，且辐射剂量更低。更多还原

【Abstract】 Objective To explore the diagnostic value of multilayer spiral CT low-dose scanning for children suffering from paranasal sinusitis. Methods Forty cases of children with paranasal sinusitis admitted to the People′ s Hospital of Anyang City who underwent low-dose scanning from January 2024 to December 2024 were retrospectively selected to be included in the low-dose scanning group, and 40 cases of children with paranasal sinusitis admitted to the People’s Hospital of Anyang City who underwent conventional-dose CT scanning during the same time period were also selected to be included in the conventional scanning group. The general information, detection of paranasal sinusitis, image quality score, radiation dose and imaging images of children with paranasal sinusitis by low-dose scanning and conventional-dose scanning were compared between the conventional scanning group and the low-dose scanning group. Children in the low-dose scanning group were divided into the infant group(n=19) and the school-age group(n=21) by age, and the image quality scores of the two groups were compared. Results In the conventional scanning group, 38 cases were detected as positive and 2 cases as negative; in the low-dose scanning group, 36 cases were detected as positive and 4 cases as negative.There was no statistically significant difference in diagnostic accuracy between the two groups( P>0.05). There was no statistically significant difference in image quality scores between the low-dose scanning group and the conventional scanning group(P>0.05). The radiation dose in the low-dose scanning group was lower than that in the conventional scanning group(P<0.05). Both the DLP value and CTDIvol value in the low-dose scanning group were lower than those in the conventional scanning group(P<0.05). There was no statistically significant difference in image quality scores between the infant group and the school-age group(P>0.05). Conclusion The diagnostic value of low-dose multi-slice spiral CT for pediatric sinusitis is not significantly different from that of conventional CT, and the radiation dose is lower.更多还原