Noninvasive Assessment of Tissue Heating During Cardiac Radiofrequency Ablation Using MRI Thermography

Noninvasive assessment of tissue heating during cardiac radiofrequency ablation using MRI thermography.

BACKGROUND Failure to achieve properly localized, permanent tissue destruction is a common cause of arrhythmia recurrence after cardiac ablation. Current methods of assessing lesion size and location during cardiac radiofrequency ablation are unreliable or not suited for repeated assessment during the procedure. MRI thermography could be used to delineate permanent ablation lesions because tiss...

Non-invasive Assessment of Tissue Heating During Cardiac Radiofrequency Ablation Using MRI Thermography Running title: Kolandaivelu et al.; MRI Thermography of Cardiac Ablation

A Model of Noninvasive Radiofrequency Tissue Heating

Introduction: Noninvasive radiofrequency (RF) tissue heating is frequently used for skin tightening and facial wrinkle reduction as alternative to invasive surgical procedures. The aim of this technique is to heat dermis and subcutaneous tissue in order to induce modifications in the collagen structure, which is then followed by formation of new collagen fibers and long-term tissue remodeling [...

An Investigation of Brightness Changes in Ultrasound Images due to Temperature Variations in Liver Tissue during Radiofrequency Ablation

Introduction: one of the minimally invasive methods of treatmenting liver malignancies is Radiofrequency Ablation (RFA) which can be applied to primary or secondary tumors. Nevertheless, the disease recurrence is probable after RFA application partially due to the inadequate capability of temperature monitoring of the target tissue and visualizing the thermal damage. The goal of this work was t...

Issues with radiofrequency heating in MRI

To the Editor: In recent years, the use of magnetic resonance imaging (MRI) has been increasing in patients with implanted devices, such as cardiac pacemakers and neurostimulators, which used to preclude the use of MRI owing to patient safety and device malfunction concerns.(1-6) In the past few years, however, more of these implant devices have become MR-compatible and can function properly du...