摘要
目的对CT灌注成像结合动态增强对孤立性肺结节(SPN)的诊断效能进行研究。方法对64例患者进行CT灌注成像结合动态增强检查,对患者的影像学表现进行分析,对良、恶性结节各项灌注参数进行比较,对良、恶性结节特征参数值进行分析。结果良性肺结节患者的BV、PS值均低于恶性肺结节患者(P<0.05),良恶性肺结节患者的BF、MTT值,两者比较差异无统计学意义(P>0.05)。良性结节值、结节/主动脉强化值比分别为11.13±5.02、0.04±0.02,恶性结节强化值、结节/主动脉强化值比分别为30.18±17.13、0.19±0.02,恶性结节强化值明显高于良性结节差异有统计学意义(P<0.05)。结论 CT灌注成像结合动态增强对SPN的诊断有着一定的优越性,更能有效地区分良、恶性结节,值得临床推广应用。
Objective To investigate the diagnostic efficacy of CT perfusion imaging combined with dynamic enhancement on solitary pulmonary nodule(SPN).Methods CT perfusion imaging combined with dynamic enhancement examination was performed in 64 patients.The imaging findings of the patients were analyzed.The perfusion parameters of benign and malignant nodules were compared,and the characteristic parameters of benign and malignant nodules were analyzed.Results The BV and PS values of patients with benign pulmonary nodules were lower than those of patients with malignant pulmona ry nodules(P<0.05).There were no significa nt differences in BF and MTT between benign and malignant pulmonary nodules(P>0.05).Benign nodule values,enhancement values ratio of nodule/aorta were(11.13±5.02) and(0.04±0.02),respectively,and enhancement values of malignant nodule,and enhancement values ratio of nodule/a orta were(30.18±17.13),and(0.19±0.02),respectively.The enhancement value of malignant nodules was significantly higher than that of benign nodules,and the difference was statistically significant(P<0.05).In the CT examination,no misdiagnosis occurred in 44 cases with malignant nodules,and in the 22 benign nodules,20 cases were diagnosed correctly,and2 cases were misdiagnosed.Conclusion CT perfusion imaging combined with dynamic enhancement has certain advantages in the diagnosis of SPN,and it is more effective in distinguishing benign from malignant nodules,which is worthy of clinical application.
作者
杨守珍
鲁键
陈松
YANG Shou-zhen;LU Jian;CHEN Song(Department of Imaging,AVIC Xi'an hospital,Xi'an 710077,shaanxi province,china;Department of Imaging,xidian group hospital,Xi'an 710077,shaanxi province,china)
出处
《中国CT和MRI杂志》
2021年第3期62-64,共3页
Chinese Journal of CT and MRI
基金
陕西省科学技术研究计划项目(2017K02-88)。
