Transcranial MR-guided focused ultrasound sonothrombolysis in the treatment of intracerebral hemorrhage

Stephen J. Monteith*, Neal F. Kassell, Oded Goren, Sagi Harnof

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Intracerebral hemorrhage remains a significant cause of morbidity and mortality. Current surgical therapies aim to use a minimally invasive approach to remove as much of theclot as possible without causing undue disruption to surrounding neural structures. Transcranial MR-guided focused ultrasound (MRgFUS) surgery is an emerging technology that permits a highly concentrated focal point of ultrasound energy to be deposited to a target deep within the brain without an incision or craniotomy. With appropriate ultrasound parameters it has been shown that MRgFUS can effectively liquefy large-volume blood clots through the human calvaria. In this review the authors discuss the rationale for using MRgFUS to noninvasively liquefy intracerebral hemorrhage (ICH), thereby permitting minimally invasive aspiration of the liquefied clot via a small drainage tube. The mechanism of action of MRgFUS sonothrombolysis; current investigational work with in vitro, in vivo, and cadaveric models of ICH; and the potential clinical application of this disruptive technology for the treatment of ICH are discussed.

Original languageEnglish
Article numberE14
JournalNeurosurgical Focus
Issue number5
StatePublished - May 2013
Externally publishedYes


  • Focused ultrasound
  • High-intensity focused ultrasound
  • Intracerebral hemorrhage
  • MRgFUS
  • Sonothrombolysis


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