CRYOGENIC BALLOON CATHETER ASSEMBLY WITH SENSOR ASSEMBLY

An intravascular catheter system for treating a condition in a body includes a catheter shaft, a first inflatable balloon and a plurality of electrodes. The first inflatable balloon is positioned near a distal end of the catheter shaft. The first inflatable balloon moves between an inflated state and a substantially deflated state. In the inflated state, the first inflatable balloon has a maximum circumference. The plurality of electrodes are attached to the first inflatable balloon away from the maximum circumference of the first inflatable balloon. In some embodiments, the plurality of electrodes are attached to the inner surface of the first inflatable balloon. In various embodiments, the intravascular catheter system can also include two or more flex circuits that substantially face one another when the first inflatable balloon is in the substantially deflated state.