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

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

Author information

1
Department of Radiology, Stanford University, Richard M. Lucas Center for Imaging, 1201 Welch Rd., Stanford, CA 94305-5488. Electronic address: ghanouni@stanford.edu.
2
Department of Radiology, Stanford University, Richard M. Lucas Center for Imaging, 1201 Welch Rd., Stanford, CA 94305-5488.
3
Department of Orthopedic Surgery, Stanford University, Richard M. Lucas Center for Imaging, 1201 Welch Rd., Stanford, CA 94305-5488.
4
Department of Diagnostic and Interventional Radiology, Rizzoli Institute, Bologna, Italy.
5
Department of Radiology, Sapienza University, Rome, Italy.

Abstract

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.

PMID:
29157478
PMCID:
PMC5726422
DOI:
10.1016/j.jvir.2017.06.002
[Indexed for MEDLINE]
Free PMC Article

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