Patent ID: 6962587

Claim:
A method for detecting and treating a tumor using tissue localized volumetric impedance measurements, the method comprising: providing an impedance measurement apparatus including an impedance array having a plurality of resilient members being positionable in an elongated delivery device and being deployable with curvature, at least two of the plurality resilient members being a sensor member for determining impedance, where each sensor member is operatively connected to a separate energy source, at least one of said plurality of resilient members being an electrode operatively coupled to a energy source; positioning the apparatus at a selected tissue site; deploying the impedance array to define a sample volume; utilizing the impedance array to make impedance measurements through a plurality of conductive pathways; determining a tissue condition of the sample volume utilizing information from the impedance measurements; and delivering energy from the energy delivery device to ablate or necrose at least a portion of the tumor.