IN VIVO LOCALIZATION AND TRACKING OF TISSUE PENETRATING CATHETERS USING MAGNETIC RESONANCE IMAGING

摘要

Magnetic resonance image (MRI) guided tissue penetrating catheters (10). One or more MRI apparatus (34,35,46) (e.g., one or more coils) are positioned on or in a catheter device that includes a tissue penetrator (30) that may be used to form a penetration tract from a body lumen in which the catheter is positioned to a target location outside of that body lumen. The MRI apparatus (e.g., coil(s) ) is/are used in conjunction with an MRI imaging system to indicate the position and/or rotational orientation of the penetrating catheter within the subject's body.