| 李洪德,王宏,朱康,常爱利.直接低剂量CT甲状腺保护扫描技术用于检查儿童下呼吸道感染性疾病的可行性[J].中国介入影像与治疗学,2025,22(6):385-388 |
| 直接低剂量CT甲状腺保护扫描技术用于检查儿童下呼吸道感染性疾病的可行性 |
| Feasibility of direct low-dose CT thyroid protection scanning technology for detecting lower respiratory tract infectious diseases in children |
| 投稿时间：2025-01-24 修订日期：2025-02-19 |
| DOI：10.13929/j.issn.1672-8475.2025.06.004 |
| 中文关键词: 儿童 呼吸道感染 辐射剂量 甲状腺 体层摄影术，X线计算机 |
| 英文关键词:child respiratory tract infections radiation dosage thyroid gland tomography, X-ray computed |
| 基金项目:2024年度淄博市医药卫生科研项目（20240904069）。 |
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| 中文摘要: |
| 目的 探讨直接低剂量CT甲状腺保护扫描技术用于检查儿童下呼吸道感染性疾病的可行性。方法 回顾性分析因疑诊下呼吸道感染性疾病而接受胸部CT检查的1 128例患儿，根据扫描方案进行分组：A组（n=1 088）包含全肺尖，采用常规或直接低剂量扫描技术；B组（n=40）不包含肺尖（定位起始扫描线位于胸骨柄上缘水平），采用直接低剂量扫描技术；于A组中筛选40例与B组年龄、性别完全一致且接受直接低剂量CT扫描的患儿，以之为A1组。观察A组肺尖部病变性质及其是否影响影像学诊断结果，以及A、B组显示甲状腺情况；比较A1组与B组辐射剂量。结果 B组辐射剂量22.1～35.6 mGy、平均（28.34±2.86）mGy，显著低于A1组［辐射剂量29.1～44.3 mGy、平均（34.71±3.07）mGy，P＜0.001］。A组1 088例中，54例（54/1 088，4.96%）CT提示肺尖部病变，包括炎性病变49例（49/1 088，4.50%）、条状肺不张4例（4/1 088，0.37%）及占位1例（1/1 088，0.09%），均自其他肺叶病变延伸而来且不影响最终影像学诊断结果。A组中1 046例（1 046/1 088，96.14%）显示甲状腺（含A1组40例），B组40例（40/40，100%）均未显示甲状腺；A1组甲状腺显示率显著高于B组（χ2=80.000，P＜0.001）。结论 直接低剂量CT甲状腺保护扫描技术可用于检查儿童下呼吸道感染性疾病，能够降低辐射剂量、保护甲状腺免受电离辐射损伤。 |
| 英文摘要: |
| Objective To explore the feasibility of direct low-dose CT thyroid protection scanning technology for detecting lower respiratory tract infectious diseases in children. Methods A total of 1 128 children who underwent CT chest examination due to suspected lower respiratory tract infectious diseases were enrolled and divided into 2 groups according to scanning scheme， which in group A （n=1 088） covered the whole lung apex and used conventional or direct low-dose scanning techniques， while in group B （n=40） did not include lung apex （the starting line located horizontally at the upper edge of manubrium sterni） and adopted direct low-dose scanning technique. Forty children in group A with age and gender matched with those in group B who received direct low-dose CT scanning were taken as group A1. The property of lung apex lesions and whether the lesions impacted the diagnostic outcomes in group A， as well as the display of thyroid gland in both group A and B were analyzed. Radiation dosage was compared between group A1 and group B. Results The radiation dose in group B was 22.1—35.6 mGy， with an average of （28.34±2.86） mGy， significantly lower than that in group A1 （ 29.1—44.3 mGy， with an average of ［34.71±3.07］ mGy， P＜0.001）. Among 1 088 cases in group A， CT showed lung apex lesions in 54 cases （54/1 088， 4.96%） ， including 49 cases （49/1 088， 4.50%） of inflammatory， 4 cases （4/1 088， 0.37%） of linear atelectasis and 1 case （1/1 088， 0.09%） of space-occupying， all were expended from other lung lobe and did not impact final imaging diagnosis. Thyroid gland was displayed in 1 046 cases （1 046/1 088， 96.14%） in group A （including 40 cases in group A1）， which was not displayed in all 40 cases （40/40， 100%） in group B. The display rate of thyroid gland in group A1 was significantly higher than that in group B （χ2=80.000， P＜0.001）. Conclusion Direct low-dose CT thyroid protection scanning technology was feasible for detecting lower respiratory tract infectious diseases in children， which could reduce radiation dose and protect thyroid from ionizing radiation damage. |
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