RFID STENTag for passive vascular monitoring

Starting from the physical evidence that passive RFID systems may be used as self-sensing devices, the feasibility of vascular monitoring by means of implanted radio-sensor, the STENTag device, which embodies medical, sensing and communication features, is here investigated. The key parameters to master with the purpose to enhance the sensitivity of the implanted device have been theoretically analyzed and numerically applied to a specific medical problem, i.e. the continuous monitoring of carotid in-stent restenosis. Preliminary experimental results with simplified phantoms corroborate the analysis.