• J Vasc Interv Radiol · Dec 2012

    Clinical Trial

    Magnetic resonance imaging-guided focused ultrasound treatment of pedunculated subserosal uterine fibroids: a preliminary report.

    • Hyun Park, Sang-Wook Yoon, Kyoung-Ah Kim, Jung Kim Dae D, and Sang-Geun Jung.
    • Comprehensive Gynecologic Cancer Center, CHA Bundang Medical Center, CHA University, 351 Yatap-dong, Bundang-gu, Sungnam-si, Gyunggi-do, Republic of Korea 463-712.
    • J Vasc Interv Radiol. 2012 Dec 1; 23 (12): 1589-93.

    PurposeTo evaluate magnetic resonance (MR) imaging-guided focused ultrasound (US) as a treatment for pedunculated subserosal fibroids.Materials And MethodsOver a 2-year period (March 2007 to March 2009), 135 women with symptomatic uterine fibroids were treated in the authors' institution using MR imaging-guided focused US. Of these women, nine (mean age, 39 years; range, 25-47 y) had a single pedunculated subserosal fibroid. During treatment, these pedunculated fibroids were targeted, while sparing the stalk connection between the fibroid and the uterus. Contrast-enhanced T1-weighted MR images were obtained immediately after the treatment to measure the nonperfused volume (NPV) ratio and to check stalk viability. Changes in tumor volume, diameter of the stalk, patient symptoms and adverse events were evaluated 6 months after treatment.ResultsThe volume of the treated fibroids (n=9) ranged from 79-380cm(3) (mean, 198cm(3)), and NPV ratio ranged from 45%-80% (mean, 67%). MR imaging follow-up at 6 months showed a 14%-48% (mean, 30%) reduction in the volume of the treated fibroids (P =.008). In all cases, the pedunculated subserosal fibroids remained connected to the uterus with a 13% average decrease in the mean diameter of the stalks (from 3.5 to 3.0cm; P=.008). Eight of nine patients (89%) reported improvement in bulk-related fibroid symptoms after treatment.ConclusionsThe results of this preliminary study suggest that MR imaging-guided focused US may be a safe and effective treatment for pedunculated subserosal fibroids. Larger prospective studies with longer follow-up are needed to confirm the suitability of MR imaging-guided focused US to treat this type of fibroid.Copyright © 2012 SIR. Published by Elsevier Inc. All rights reserved.

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