TISSUE ABLATION AND LESION ASSESSMENT SYSTEM

A method may include providing an ablation system with (i) an ablation catheter having a plurality of antenna/sensor electrodes at a distal end; (ii) a plurality of ablation generators; (iii) a plurality of vector network analyzers (VNAs); (iv) a filtering system; and (v) a transmission system that individually couples each of the plurality of antenna/sensor electrodes to one discrete ablation generator and one discrete VNA. Each VNA may calculate high-frequency electrical parameters (HFEPs) for each antenna/sensor electrode. The method may further include navigating the ablation catheter to a target treatment region within a patient; capturing baseline HFEPs for each antenna/sensor electrode; positioning the ablation catheter; capturing updated HFEPs for each antenna/sensor electrode; identifying a first subset of antenna/sensor electrodes that are in contact with the target tissue and a second subset that is not; and selectively providing ablation signals to the first subset but not to the second subset.