Systems for MRI-guided cryosurgery

Details Systems for MRI-guided cryosurgery Systems for MRI-guided cryosurgery

2005-01-10

2010-12-14

Peffley, Michael (Department: 3739)

Surgery

Instruments

Cyrogenic application

C606S022000

Reexamination Certificate

active

07850682

ABSTRACT:
The present invention is of systems and methods for MRI-guided cryosurgery. The systems enable a surgeon positioned next to a patient and within an MRI magnetic environment both to monitor progress of a cryosurgical intervention by observing MRI images of the intervention in real time, and to fully control aspects of operation of a cryosurgery apparatus by remotely controlling a fluid supply source positioned external to that magnetic environment, which fluid supply source supplies cryogenic fluids to cryoprobes operable within that magnetic environment, thereby enabling real-time MRI-guided control of a cryoablation process. A preferred embodiment enables calculation and display of borders of an ablation volume surrounding a cooled cryoprobe in real time, and further enables automatic control of elements of a cryoablation procedure, which elements are triggered when shape and position of that calculated ablation volume are found to bear a predefined relationship to the shape and position of a predefined treatment target.

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