Value of CT and MRI imaging in the application of newly diagnosed esophageal cancer staging / 中国基层医药

ABSTRACT

Objective To explore CT and MRI imaging in the application of newly diagnosed esophageal cancer staging.Methods 200 patients with newly diagnosed esophageal cancer were selected as the research object, who voluntarily accepted the chest CT and MRI examination.Newly diagnosed esophageal cancer pathological results and CT,MRI features were observed.Spiral CT,MRI for T staging of esophageal cancer and N staging diagnosis were compared.Results In 200 patients,including 160 cases of squamous cell carcinoma,30 cases of adenocarcinoma, 10 cases of other types,T1 ,T2 ,T3 and T4 clinical staging period were respectively 19 cases,47 cases,81 cases and 53 cases,while N0 and N1 period were 65 cases and 135 cases respectively.The lesion diameter was 10 -22 (16.5 ± 4.6)mm.CT and MRI showed irregular thickening of the esophageal wall,CT showed equal or slightly lower density, T1 WI was MRI or low signal,T2 WI showed a slightly higher signal.Enhanced scanning,a substantial part of lesion enhancement,while the dead part had no enhancement.In T1 ,T2 of the diagnosis of esophageal carcinoma,MRI had higher diagnostic sensitivity and accuracy compared with CT,and the difference was statistically significant (χ2 =4.32,3.89,all P 0.05).By using the joint appli-cation of the two methods,the diagnostic sensitivity and accuracy were significantly higher than that used alone,the difference was statistically significant (χ2 =4.12,3.98,all P 0.05).The combined application of MRI and CT significantly improved the diag-nostic sensitivity and accuracy.Compared with the single application,the difference was statistically significant (χ2 =4.32,4.54,all P <0.05).Conclusion MRI is more sensitive to diagnosis T1 ,T2 stage and N0 ,N1 stage in esopha-geal carcinoma.Combined application of MRI and CT can improve the diagnostic sensitivity and accuracy.