螺旋CT低剂量扫描在健康体检中的应用价值
2016-04-07陈国伟
陈国伟


[摘要] 目的 探讨螺旋CT低剂量扫描在健康体检中的应用价值。 方法 将2015年1~12月在我院接受健康体检的3356例体检者按照随机数字表法分为低剂量组(1678例)和常规剂量组(1678例),对比两组的疾病检出率、辐射剂量和图像质量。 结果 常规剂量组共检出疾病479例,检出率为28.54%,低剂量组共检出疾病478例,检出率为28.49%,两组的疾病检查率比较,差异无统计学意义(P>0.05);两组的图片质量均达到诊断要求,质量评分比较,差异无统计学意义(P>0.05);低剂量组的CTDIvol、DLP均明显低于常规剂量组(P<0.05)。 结论 低剂量CT扫描既能满足诊断要求,又可减少辐射照射剂量,避免不必要的损害。
[关键词] 螺旋CT;低剂量;健康体检
[中图分类号] R445.3 [文献标识码] A [文章编号] 1674-4721(2016)02(c)-0060-03
[Abstract] Objective To discuss the application value of low-dose spiral CT in health physical examination. Methods 3356 subjects receiving health physical examination in our hospital from January to December 2015 were randomly divided into the low-dose group (n=1678) and the standard-dose group (n=1678).The detection rate of disease,radiation dose,and image quality between two groups was compared respectively. Results 479 cases of disease were detected in the standard-dose group and the detection rate was 28.54%.478 cases of disease were detected in the low-dose group and the detection rate was 28.49%,and there was no statistical difference between two groups (P>0.05).The image quality of both groups could meet the diagnosis requirement and it showed no significant difference of quality score between two groups (P>0.05).The CTDIvol and DLP in low-dose group was significantly lower than that in the standard-dose group (P<0.05). Conclusion Low-dose CT can satisfy the requirement of diagnosis and reduce the exposure dose radiation,thus avoid unnecessary harm.
[Key words] Spiral CT;Low-dose;Health physical examination
随着经济的发展,人们生活水平的提高,公众健康意识也不断提高,以往依靠疾病的症状启动诊断进程的历史发生了改变,健康体检年受检量逐年增加[1]。螺旋CT扫描在健康体检筛查中的应用较普遍,可以获得比较精细和清晰的图像,有助于尽早发现病变,但与此同时,伴随着社会文明的高度发展,人们的自身防护意识也不断加强,在体检过程中,排斥和抵触常规螺旋CT检查,导致可能漏掉一些病灶[2-3]。为了满足人们的体检需求,我院引入低剂量螺旋CT技术,取得了较满意的体检效果。现将我院3356例健康体检者的资料进行回顾性分析,报告如下。
1 资料与方法
1.1 一般资料
受检者均为2015年1~12月在我院接受健康体检者,共3356例。按照随机数字表法分为低剂量组(1678例)和常规剂量组(1678例)。低剂量组:男832例,女846例;年龄25~65岁,平均(45.6±5.7)岁,其中20~29岁298例,30~39岁463例,40~49岁581例,50~59岁202例,60岁及以上134例。常规剂量……
