Application Of Three-dimensional Tomography Ultrasound Imaging For Local Staging Of Cervical Cancer

Objectives: This study is aims to evaluate the agreement of three-dimensional tomographic ultrasound and partial examination,with magnetic resonance imaging(MRI)for local staging of cervical cancer,and to explore the value of TUI technique in local staging of cervical cancer.Methods: Thirty-four patients with cervical cancer diagnosed by tissue biopsy were enrolled in the study.All enrolled patients underwent transvaginal TUI and Pelvic MRI,and were clinically staged using the International Federation of Obstetrics and Gynecology(FIGO)criteria.Agreement between sonography and MRI was assessed by calculating the K index and percentage of agreement.Results:1.Comparison of tumor size measurements: A significant correlation for tumor size estimation was found between 3D tomographic ultrasound and MRI(r =0.835;P < 0.001),between pelvic examination and MRI(r =0.665;P < 0.001).2.Regarding the parametrial infiltration: Agreement for parametrial infiltration between pelvic examination and MRI was moderate(K=0.420;95%CI: 0.061-0.718;79.0%agreement),between 3D tomographic ultrasound and MRI was good(K=0.648;95%CI: 0.296-0.921;88.0%agreement).3.Regarding vaginal infiltration: Agreement for vaginal infiltration between pelvic examination and MRI was moderate(K=0.423;95%CI: 0.088-0.731;73.5%agreement),between 3D tomographic ultrasound and MRI was good(K=0.577;95%CI: 0.239-0.858;82.3%agreement).4.Agreement for bladder and rectal involvement was not calculated because of the very small number of cases.Conclusions:1.Tomography ultrasonic imaging technology showed good agreement with MRI for assessing parametrial and vaginal infiltration in cervical cancer.2.Tomography ultrasonic imaging technology has a significant correlation with MRI assessment of tumor size.3.Tomography ultrasonic imaging technology has certain application value for local staging of cervical cancer.