Assessing The Value Of MRI In The Preoperative Diagnosis And Staging Of Cervical Carcinoma

Objective:To explore the value of MRI in features and preoperative staging and lymph node involvement of cervical carcinoma.Materials and Methods:The73patients enrolled in this trial all came from the in-patients with Bethune’s first hospital of Jilin University between May2010and February2012,aging from25to75(medium age,46.8). The MRI examination was performed in73patients with cervical carcinoma proved by pathology,including52cases operation patients.To analyze the MRI signs and the range of tumor invasion and lymph node involvement of52cases operation patients. The result of MRI staging was compared with postoperative pathologic report.Results:1.MRI findings of cervical carcinoma were very characteristic, which appeared as moderate hyperintensity on T2WI, and there was a significant contrast noise ratiosamong the cervical carcinoma, normal cervix, and the parametrial tissue. The tumor showed hypointense on T1WI,and mild enhancement after bolus intravenous Gd-DTPA. The73cases of patients with MRI showed lesions,the accuracy of MRI diagnosis for uterine cervical carcinoma is100%.In the52cases operation patients,the accuracy,sensitivity and specificity of MRI to assess parametrial invasion ware94.23%,100%and93.02%respectively; The accuracy,sensitivity and specificity of MRI in detecting LN involvement ware88.46%,60%and95.24%respectively.2.The results of MRI staging of52cases showed, the accuracy was88.46%.The consistency between the MRI and the postoperative pathology is very well especially in the stage of IB、IIA and IIB uterine cervical cancer (χ2=0.8,0.25,1.33;P>0.05).The MRI in the diagnosis of uterine cervical cancer in stage Ⅲ and Ⅳ with postoperative pathology consistency is extremely strong, consistent with the rate of100%.Conclusions:1.The accuracy of MRI in the diagnosis for uterine cervical carcinoma is100%;The accuracy,sensitivity and specificity of MRI to assess parametrial invasion ware94.23%,100%and93.02%respectively; The accuracy,sensitivity and specificity of MRI in detecting LN involvement ware88.46%,60%and95.24%respectively.2.Compared with pathologic examination, the accuracy of MRI staging is76.67%; the consistency of two part is extremely strong.3.MRI imaging is noninvasive and no radiation and can show the local tumors and extension of the cervical carcinoma clearly on multiplanes and angles. MR imaging is superior to clinical evaluation in the staging of uterine cervical carcinoma,and should be regarded as a routine preoperative imaging study for cervical carcinoma...