Application value of dynamic enhanced CT technology in diagnosis of hepatic space occupying lesions / 中国医师杂志

ABSTRACT

Objective To explore the application value of dynamic enhanced CT technology in diagnosis of hepatic space occupying lesions.Methods A total of 54 cases of patients with hepatic space occupying lesions from January 2015 to October who were treated in our hospital were selected as the research objects,who were carried out CT plain scan and dynamic contrast-enhanced scan.The lesion display rates,and the lesions,blood vessels and tumor characters in the arterial phase,portal phase and delayed phase were recorded and analyzed,respectively.Results The display rate of plain scan was 64.16％,significantly lower than that in the arterial phase of 98.33％,in the portal phase of 81.67％,and in the delayed phase of 78.33％ of the portal phase of dynamic contrast-enhanced scan,and the differences were significant (all P ＜0.01).In the dynamic contrast-enhanced scan,the display rate of the arterial lesions in the arterial phase was higher than those in the portal phase and delayed phase,while that in the portal phase was higher than that in the delayed phase (all P ＜ 0.05).The total detection rate of the lesions of the plain scan was significantly lower than those of the pathological examination and the dynamic enhanced the third phase scan (both P ＜0.01),and the difference of detection rates between the dynamic enhanced the third phase scan and the pathological examination was not significant (P ＞ 0.05).The differences of the definition of edge sharpness,vascular clarity,and density of the lesions between the second phase scan with the third phase scan were significant (all P ＜ 0.05).The diagnosis rates of malignant and benign liver tumors in the third phase scan were significantly higher than those in the second phase scan,and the tumor characters were significantly higher than those in the second phase scan (all P ＜ 0.05).Conclusions Dynamic enhanced CT scan can effectively improve the detection rate of hepatic space occupying lesions and the effects of qualitative diagnosis and differential diagnosis,and reduce the occurrence of missed diagnosis and misdiagnosis.