CAJ | 학술논문

目的：探讨低剂量多层螺旋CT（MSCT）在周围型肺癌诊断中的应用价值。方法选择2010年1月~2013年5月梅河口市中心医院收治的315例肺癌高危患者作为研究对象，采用随机数表法分为低剂量组（168例）和常规剂量组（147例），均进行MSCT扫描，管电压均为120 kV，低剂量组采用管电流25 mA，常规剂量组管采用电流250 mA。以纤支镜病理诊断报告为金标准，计算两组的诊断灵敏度、特异度和准确度并进行比较。结果低剂量组的诊断灵敏度、特异度和准确度分别为83.7%、90.7%和88.7%，常规剂量组的诊断灵敏度、特异度和准确度分别为87.0%、91.1%和89.8%，两组相比差异均无统计学意义（P>0.05）。结论低剂量MSCT扫描可以满足临床上对周围型肺癌的影像诊断要求。
목적：탐토저제량다층라선CT（MSCT）재주위형폐암진단중적응용개치。방법선택2010년1월~2013년5월매하구시중심의원수치적315례폐암고위환자작위연구대상，채용수궤수표법분위저제량조（168례）화상규제량조（147례），균진행MSCT소묘，관전압균위120 kV，저제량조채용관전류25 mA，상규제량조관채용전류250 mA。이섬지경병리진단보고위금표준，계산량조적진단령민도、특이도화준학도병진행비교。결과저제량조적진단령민도、특이도화준학도분별위83.7%、90.7%화88.7%，상규제량조적진단령민도、특이도화준학도분별위87.0%、91.1%화89.8%，량조상비차이균무통계학의의（P>0.05）。결론저제량MSCT소묘가이만족림상상대주위형폐암적영상진단요구。
Objective To discuss the effectiveness of application of low-dose MSCT (Multi-Slice Computed Tomography) in diagnosis of peripheral lung cancers.Methods Altogether 315 patients who had high risks of lung cancers and had been treated in Meihekou Central Hospital from January 2011 to May 2014 were selected and divided randomly through the random number table into two groups: Low Dose Group (168 cases) and Conventional Dose Group (147 cases). MSCT was performed in both groups with 120 kV tube voltage. The tube current adopted in Low Dose Group was 25 mA versus Conventional Dose Group's 250 mA. Taken pathologically-confirmed bronchoscophic reports as the gold standard, the diagnostic sensitivity, specificity and accuracy were calculated and compared between two groups.Results The diagnostic sensitivity, specificity and accuracy of Low Dose Group were 83.7%, 90.7% and 88.7% versus Conventional Dose Group's 87.0%, 91.1% and 89.8% with no statistically significant differences (P> 0.05).Conclusion Low-dose MSCT scanning had proven its effectiveness in clinical diagnosis of peripheral lung cancers.