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Integrated and interactive position tracking and imaging of interventional tools and internal devices using small fiducial receiver coils
Author(s) -
Coutts Glyn A.,
Gilderdale David J.,
Chui Ming,
Kasuboski Larry,
Desouza Nandita M.
Publication year - 1998
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.1910400617
Subject(s) - fiducial marker , position (finance) , computer science , tracking (education) , scanner , electromagnetic coil , interventional magnetic resonance imaging , magnetic resonance imaging , computer vision , physics , artificial intelligence , radiology , medicine , psychology , pedagogy , finance , quantum mechanics , economics
A method is described of tracking the position of a rigid device within an MR scanner and imaging with the image slice position determined by the current position of the device, such that the manipulation of the device can be achieved in a robust, interactive manner. The device can be either external or internal to the patient. The position tracking is performed by means of two or three small MR receiver coils attached to individual receiver channels. Each coil contains a small sample that acts as a fiducial (MR‐visible marker point). The imaging is performed by any suitable receiver coil attached to a further receive channel. This method has a large number of applications, both in the field of MR‐guided procedures and in MR imaging using endocavitary coils. In particular, two devices are described, the first being a device for MR‐guided biopsies and the second being one for dynamic endorectal imaging of the anal sphincter.