螺旋CT靶扫描及重建在肺部磨玻璃结节良恶性判断中的应用价值

The Value of Spiral CT Target Scanning and Reconstruction in the Determination of Benign and Malignant Pulmonary Ground Glass Nodules

目的:分析螺旋CT靶扫描及重建在肺部磨玻璃结节良恶性判断中的应用价值。方法:回顾性分析2018年4月—2019年4月巩义市人民医院进行肺部磨玻璃结节良恶性诊断的70例患者的临床资料。以病理手术为金标准,所有患者均接受常规CT与超高分辨率螺旋CT靶扫描及重建检查。分析两种检查技术的诊断准确率、灵敏度、特异度以及肺部磨玻璃结节良恶性CT表现。结果:病理检查显示,70例患者中共有72个结节灶,其中良性22个,恶性50个。常规CT检查显示,70例患者中共有72个结节灶,其中良性25个,恶性47个。超高分辨率螺旋CT靶扫描检查显示,70例患者中共有72个结节灶,其中良性24个,恶性48个。超高分辨率螺旋CT检查技术诊断准确率为94.44%、灵敏度为94.00%、特异度为95.45%,均显著高于高于常规CT检查,差异有统计学意义(χ^(2)=9.421、4.332、5.500,P<0.05)。经CT扫描发现,良性与恶性结节的毛刺征、分叶征、瘤体与周围组织间的界面、囊状透亮影等病灶征象对比,差异有统计学意义(χ^(2)=5.774、5.059、21.803、3.927,P<0.05)。结论:螺旋CT靶扫描及重建检查肺部磨玻璃结节,能够清晰显示良恶性的毛刺征、分叶征、瘤体与周围组织间的界面、囊状透亮影等病灶征象,并有着较高的诊断准确率、灵敏度与特异度。

Objective:To analyze the value of spiral CT target scanning and reconstruction in the determination of benign and malignant pulmonary ground glass nodules.Methods:Clinical data of 70 patients who underwent benign and malignant diagnosis of pulmonary ground glass nodules in hospitals from April 2018 to April 2019 were retrospectively analyzed.Pathological procedures were used as the gold standard,and all patients underwent conventional CT with ultra-high resolution spiral CT target scanning and reconstruction.The diagnostic accuracy,sensitivity and specificity of the two examination techniques as well as the benign and malignant CT manifestations of ground glass nodules in the lung were analyzed.Results:Pathological examination revealed 72 nodal foci in 70 patients,of which 22 were benign and 50 were malignant.Routine CT examination showed a total of 72nodal foci in 70 patients,of which 25 were benign and 47 were malignant.The ultra-high resolution spiral CT target scan showed a total of 72 nodal foci in 70 patients,including 24 benign and 48 malignant.The diagnostic accuracy of ultra-high resolution spiral CT examination technique was 94.44%,sensitivity was 94.00%,and specificity was 95.45%,all of which were significantly higher than those of conventional CT examination,and the differences were statistically significant(χ^(2)=9.421,4.332,5.500,P<0.05).CT scans revealed statistically significant differences in focal signs such as burrs,lobulated signs,interface between the tumor and surrounding tissue,and cystic translucency between benign and malignant nodules(χ^(2)=5.774,5.059,21.803,3.927,P<0.05).Conclusion:Spiral CT target scanning and reconstruction examination of pulmonary ground glass nodules can clearly show the signs of benign and malignant burrs,lobar signs,interface between tumor and surrounding tissue,cystic translucent shadow and other focal signs,and has a high diagnostic accuracy,sensitivity and specificity.