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A method for simultaneous RF ablation and MRI
Author(s) -
Zhang Qiang,
Chung YiuCho,
Lewin Jonathan S.,
Duerk Jeffrey L.
Publication year - 1998
Publication title -
journal of magnetic resonance imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.563
H-Index - 160
eISSN - 1522-2586
pISSN - 1053-1807
DOI - 10.1002/jmri.1880080122
Subject(s) - ablation , rf probe , radio frequency , rf ablation , thermal ablation , interventional magnetic resonance imaging , radiofrequency ablation , medicine , magnetic resonance imaging , biomedical engineering , radiology , materials science , computer science , rf power amplifier , optoelectronics , telecommunications , amplifier , cmos
Radiofrequency (RF) energy has many advantages in thermal tumor ablation protocols. With the recent development of open MRI systems, interventional MRI procedures, including thermal ablation, have become the focus of great research interest. However, the significant interference between RF generators and MR imagers has prevented simultaneous imaging and RF ablation and, until now, has limited the role of RF‐based thermal therapy in interventional MRI. Here, a simple switching circuit designed with consideration of patient safety provides compatibility between open MRI systems and RF thermal lesion generators. The experimental results show that the switching circuit allows imaging during RF ablation and opens new opportunity for MR‐guided thermal therapy.