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— With mobile phones becoming first-class citizens in the online world, the rich location data they bring to the table is set to revolutionize all aspects of online life including content delivery, recommendation systems, and advertising. However, user-tracking is a concern with such location-based services, not only because location data can be linked(More)
Radio-frequency (RF) catheter ablation is the primary interventional therapy for the treatment of many cardiac tachyarrhythmias. Three-dimensional finite element analysis of constant-power (CPRFA) and temperature-controlled RF ablation (TCRFA) of the endocardium is performed. The objectives are to study: 1) the lesion growth with time and 2) the effect of(More)
A novel three-dimensional finite element model for the study of radiofrequency ablation is presented. The model was used to perform an analysis of the temperature distribution in a tissue block heated by RF energy and cooled by blood (fluid) flow. This work extends earlier models by including true flow in place of a convective boundary condition to simulate(More)
INTRODUCTION Catheter-based treatment of atrial fibrillation (AF) requires the isolation of the triggering foci as well as modification of the atria with substrate that sustains AF. The creation of linear lesions in the left atrium with standard radiofrequency ablative methods requires long procedural times with unpredictable results. METHODS The(More)
INTRODUCTION OBJECTIVES To assess the effect of skin electrode location on radiofrequency (RF) ablation lesion dimensions and energy requirements. BACKGROUND Little is known about the effects of skin electrode location on RF ablation lesion dimensions and efficiency. METHODS AND RESULTS Temperature-controlled ablation at 60 degrees C for 60 seconds(More)
The medical treatment and diagnosis of patients in India especially in rural regions are adversely affected due to lack of proper healthcare and a poor patient to doctor ratio. This paper attempts to bring out the concept of cost effective implementation of a robotic doctor for performing advanced telemedicine. The robot designed here assists doctor to(More)
This paper presents an in vitro temperature mapping study of bovine cardiac tissue during radiofrequency ablation. The objectives were to: (i) develop a technique for measuring the spatial and temporal temperature distribution in the tissue and in the blood during ablation, and (ii) use the temperature measurements to characterize the effects of fluid flow(More)
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