低剂量CT结肠成像结合增强扫描在结肠癌中的临床应用价值

Theclinical application of Low dose CT colonic imaging combined with enhanced scanning in colon cancer

目的:探讨结肠癌诊断中应用低剂量CT结肠成像结合增强扫描的价值。方法:选择我院2016年1月—2017年6月门诊接待的诊查疑似结肠癌患者100例作为研究对象,纳入对象愿意配合本研究,有完整资料,按照随机数表法分组,每组50例,对照组接受常规剂量CT结肠成像诊断,研究组接受低剂量CT结肠成像诊断,并根据情况结合增强扫描,将病理结果作为金标准,观察与统计两组诊断的特异性、敏感性及约登指数,并记录两组的辐射剂量情况,利用统计学软件S P S S20.0处理。结果:对照组诊断敏感性、特异性、约登指数依次为96.88%、94.44%、0.92,研究组则依次为100.00%、88.89%、0.85,两组比较差异无统计学意义(P>0.05);研究组CT扫描有效辐射剂量为15.18±4.22msv,对照组则为22.38±5.27msv,同时研究组放射剂量长度乘积明显低于对照组,两组比较差异有统计学意义(P<0.05)。结论:低剂量CT结肠成像结合增强扫描诊断结肠癌在特异性、敏感性及约登指数上可取得与常规剂量CT扫描相似的效果,但可以更好地减少受检者的辐射剂量,安全性更好,值得借鉴。

Objective To investigate the value of low dose CT colonic imaging combined with enhanced scanning in colon cancer diagnosis.Methods From January 2016-June 2017 outpatient reception of inspecting the 100 cases of suspected colon cancer patients as the research object,into the object is willing to cooperate with in this study,with complete information,according to the random grouping meter method,50 cases in each group,control group accepted routine dose CT imaging in the diagnosis of colon,the team received low-dose CT imaging in the diagnosis of colon,and according to the situation combined with enhanced scan,the pathological results as the gold standard,observation and statistical diagnostic specificity,sensitivity,and the two groups about index,and record the radiation dose in the two groups,using statistical software SPSS20.0 processing.Results In the control group,the sensitivity,specificity,and yiden index in the control group were96.88%,94.44%,0.92,respectively.The study group was 100.00%,88.89% and 0.85,respectively,and the differences were not statistically significant(P > 0.05).The effective radiation dose of the study group CT scan was 15.18±4.22 MSV,while the control group was 22.38 plus or minus 5.27 MSV,while the radiation dose length of the study group was significantly lower than the control group,and the difference between the two groups was statistically significant(P <0.05).Conclusion The combination of low dose CT colon imaging enhancement scanning in the diagnosis of colon cancer on the specificity,sensitivity,and about an index can be obtained with conventional dose CT scans of similar effect,but can better reduce the radiation dose client,better security,is worth using for reference.