Comparison Between 360° 3-D Transvaginal Ultrasound and Magnetic Resonance Imaging for Assessment of Vaginal Invasion in Cervical Cancer: A Preliminary Report

Abstract

Our goal was to estimate the agreement between 360˚3-D transvaginal ultrasound (TVUS) and magnetic resonance imaging (MRI) of the vaginal invasion in cervical cancer and to discuss the clinical value of 3603 -D TVUS. A total of 72 patients with untreated cervical cancer were included in the work. The percentage agreement between 2-D TVUS and MRI in assessing vaginal invasion (yes or no) was 77.8% (kappa, 0.400) and that between 360˚3-D TVUS and MRI was 97.2% (kappa, 0.873). The results of 2-D TVUS demonstrated the following agreement with those of MRI: 77.8% for the upper two-thirds of the vagina (kappa, 0.538), 83.3% for the lower third of the vagina (kappa, 0.471). The results of 360˚3-D TVUS demonstrated the following agreement with those of MRI: 95.8% for the upper two-thirds of the vagina (kappa, 0.907), 98.6% for the lower third of the vagina (kappa, 0.961). The results of 360˚3-D TVUS demonstrated good agreement with MRI, which is less costly and more readily available than MRI and should be considered in the pre-treatment work-up for cervical cancer.

Two‐dimensional and 360°‐three‐dimensional transvaginal sonographic features of vaginal lesions

“…Unlike traditional intracavitary 3D volume reconstruction, 360°‐3D‐TVS uses a multifrequency 12–16‐MHz ring‐shaped single‐plane probe for scanning and 3D reconstruction, offering improved image resolution and detection of small lesions. Our previous research found that 360°‐3D‐TVS demonstrated good agreement with magnetic resonance imaging in assessing the extent of vaginal invasion in patients with cervical cancer 5 . It remains unknown whether 360°‐3D‐TVS can be used effectively to define vaginal lesions and their anatomical relationship with adjacent major organs.…”