Treatment of Low-Flow Vascular Malformations of the Extremities Using MR-Guided High Intensity Focused Ultrasound: Preliminary Experience

J Vasc Interv Radiol. 2017 Dec;28(12):1739-1744. doi: 10.1016/j.jvir.2017.06.002.


Five patients with painful vascular malformations of the extremities that were refractory to standard treatment and were confirmed as low-flow malformations on dynamic contrast-enhanced magnetic resonance (MR) imaging were treated with MR imaging-guided high intensity focused ultrasound. Daily maximum numeric rating scale scores for pain improved from 8.4 ± 1.5 to 1.6 ± 2.2 (P = .004) at a median follow-up of 9 months (range, 4-36 mo). The size of the vascular malformations decreased on follow-up MR imaging (median enhancing volume, 8.2 mL [0.7-10.1 mL] before treatment; 0 mL [0-2.3 mL] after treatment; P = .018) at a median follow-up of 5 months (range, 3-36 mo). No complications occurred.

MeSH terms

  • Adolescent
  • Adult
  • Contrast Media
  • Extremities / blood supply*
  • Female
  • High-Intensity Focused Ultrasound Ablation / methods
  • Humans
  • Magnetic Resonance Imaging
  • Magnetic Resonance Imaging, Interventional / methods*
  • Male
  • Pain Measurement
  • Retrospective Studies
  • Treatment Outcome
  • Vascular Malformations / therapy*


  • Contrast Media