Electromagnetic field focusing (EFF) probe in aneurysm thrombosis - Preliminary report

A. A. Patil, W. Yamanashi, J. Valentine, D. Hill, R. E. Woosley, O. F. Filip

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


Due to its capability of producing a well localized intense heat field of predictable dimensions, the electromagnetic field focusing probe was evaluated experimentally as a surgical tool in aneurysm thrombosis. Aneurysm models were created by anastomosing a segment of vein to the abdominal aorta. Seventy-five such aneurysms were created in seventy-five animals. The aneurysms were then placed under the solenoidal radiofrequency coil and the tip of the field focusing probe was inserted into them. Intense heat was delivered with well defined, effective and quick thrombosis and shrinkage of the aneurysm. Nineteen of the aneurysms were followed for up to one week. Histological studies were conducted showing complete thrombosis of the aneurysm with good preservation of the aorta. With further refinement of this technique, it is hoped that stereotaxic aneurysm thrombosis might be possible.

Original languageEnglish (US)
Pages (from-to)68-71
Number of pages4
JournalActa Neurochirurgica
Issue number1-2
StatePublished - Mar 1986
Externally publishedYes


  • Electromagnetic field
  • aneurysm
  • radiofrequency probe

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology


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