| 冯佳怡,王有俊,张 鹏,邱海嵊,黄静蕾.不同剂量多排螺旋CT扫描对儿童肺结核的诊断价值比较研究[J].,2019,19(11):2096-2099 |
| 不同剂量多排螺旋CT扫描对儿童肺结核的诊断价值比较研究 |
| Comparative Study on the Diagnostic Value of Multi-slice Spiral CT Scanning with Different Doses in Children with Pulmonary Tuberculosis |
| 投稿时间：2019-01-04 修订日期：2019-01-27 |
| DOI：10.13241/j.cnki.pmb.2019.11.019 |
| 中文关键词: 儿童 肺结核 剂量 多排螺旋CT 诊断 |
| 英文关键词: Children Pulmonary tuberculosis Doses Multi-slice spiral CT Diagnosis |
| 基金项目:上海卫生和计划生育委员会项目（2015Y1296） |
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| 中文摘要: |
| 摘要 目的：探讨不同剂量多排螺旋CT扫描对儿童肺结核（PTB）的诊断价值。方法：以我院于2016年5月～2018年11月收治的156例PTB患儿为研究对象，根据患儿年龄分为A组52例（0～5岁）、B组52例（6～9岁）、C组52例（10～14岁）。三组患儿均进行低剂量64排螺旋CT扫描，其中A组剂量为20 MA，B组剂量为30 MA，C组剂量为40 MA，2 d后，三组患儿均进行常规剂量64排螺旋CT扫描，其中A组剂量为100 MA，B组和C组剂量均为150 MA。分别对比A组、B组、C组患儿低剂量与常规剂量CT扫描的扫描效果、图像优良率及辐射剂量。结果：A组、B组、C组患儿低剂量与常规剂量CT扫描对病灶数量、结节、空洞、胸膜粘连、钙化灶的显像率比较差异无统计学意义（P>0.05），但A组、B组、C组患儿低剂量CT扫描对毛刺、磨玻璃影的显像率明显低于常规剂量CT扫描（P<0.05）；A组、B组、C组患儿低剂量与常规剂量CT扫描的图像优良率比较差异无统计学意义（P>0.05）；与常规剂量CT扫描相比，A组、B组、C组患儿低剂量CT扫描的剂量长度乘积（DLP）、CT剂量指数（CTDIvoI）、CT加权剂量指数（CTDIw）、放射剂量明显更低（P<0.05）。结论：使用常规剂量多排螺旋CT扫描对PTB儿童毛刺、磨玻璃影的显像效果较好，但是使用低剂量多排螺旋CT扫描同样能够确保图像的质量，达到诊断要求，并且能够降低对患儿的辐射剂量，在考虑人体健康的前提下，建议使用低剂量多排螺旋CT扫描。 |
| 英文摘要: |
| ABSTRACT Objective: To explore the diagnostic value of multi-slice spiral CT scanning with different doses in children with pul- monary tuberculosis (PTB). Methods: 156 children with PTB who were treated in our hospital from May 2016 to November 2018 were selected as the subjects. They were divided into group A with 52 children (0-5 years old), group B with 52 children (6-9 years old) , Group C with 52 children (10-14 years old) according to the age of the children. Three groups of children were given 64-slice spiral CT low-dose scan, the group A was given 20 MA, group B was given 30 MA, group C was given 40 MA. 2 days later, 64-slice spiral CT scans were performed in all three groups. The dose of group A was 100 MA, and the dose of group B and group C were 150 MA. The scanning effect, image excellence rate and radiation dose of low-dose and conventional-dose CT scanning in group A, group B and group C were respectively compared. Results: There were no significant differences in the number of lesions, nodules, cavities, pleural adhesion and calcification between low-dose and conventional-dose CT scans in group A, B and C(P>0.05). However, the imaging rate of burrs and ground glass in group A, B and C by low dose CT scan were significantly lower than those by conventional-dose CT scan (P<0.05).There was no significant difference in the image excellent and good rate of low-dose and conventional-dose CT scans between group A, B and C(P>0.05). Compared with conventional-dose CT scan, the dose-length product (DLP), CT dose index (CTDIvoI), CT weighted dose index(CTDIw) and radiation dose of low-dose CT scan in group A, B and C were significantly lower (P<0.05). Conclusion: Con- ventional dose multi-slice spiral CT scanning has better imaging effect on burr and ground glass in PTB children, but low dose multi-slice spiral CT scanning can also ensure the image quality, meet the diagnostic requirements, and reduce the radiation dose to children. Con- sidering hu- man health, low-dose multi-slice spiral CT scanning is recommended. |
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