• Ultrasonics · Apr 2015

    Comparative Study

    Intraprocedure contrast enhanced ultrasound: the value in assessing the effect of ultrasound-guided high intensity focused ultrasound ablation for uterine fibroids.

    • Song Peng, Liang Hu, Wenzhi Chen, Jinyun Chen, Caiyong Yang, Xi Wang, Rong Zhang, Zhibiao Wang, and Lian Zhang.
    • State Key Laboratory of Ultrasound Engineering in Medicine Co-founded by Chongqing and the Ministry of Science and Technology, Chongqing Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China.
    • Ultrasonics. 2015 Apr 1; 58: 123-8.

    PurposeTo investigate the value of microbubble contrast-enhanced ultrasound (CEUS) in evaluating the treatment response of uterine fibroids to HIFU ablation.Materials And MethodsSixty-eight patients with a solitary uterine fibroid from the First Affiliated Hospital of Chongqing Medical University were included and analyzed. All patients underwent pre- and post-treatment magnetic resonance imaging (MRI) with a standardized protocol, as well as pre-evaluation, intraprocedure, and immediate post-treatment CEUS. CEUS and MRI were compared by different radiologists.ResultsIn comparison with MRI, CEUS showed that the size of fibroids, volume of fibroids, size of non-perfused regions, non-perfused volume (NPV) or fractional ablation (NPV ratio) was similar to that of MRI. In terms of CEUS examination results, the median volume of fibroids was 75.2 (interquartile range, 34.2-127.3) cm(3), the median non-perfused volume was 54.9 (interquartile range, 28.0-98.1) cm(3), the mean fractional ablation was 83.7±13.6 (range, 30.0-100.0)%. In terms of MRI examination results, the median volume of fibroids was 74.1 (interquartile range, 33.4-116.2) cm(3). On the basis of contrast-enhanced T1-weighted images immediately after HIFU treatment, the median non-perfused volume was 58.5 (interquartile range, 27.7-100.0) cm(3), the average fractional ablation was 84.2±14.2 (range, 40.0-100.0)%.ConclusionsCEUS clearly showed the size of fibroids and the non-perfused areas of the fibroid. Results from CEUS correlated well with results obtained from MRI.Copyright © 2015 Elsevier B.V. All rights reserved.

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