نتایج جستجو برای: thermal ablation
تعداد نتایج: 263779 فیلتر نتایج به سال:
AIMS We investigated the feasibility of real-time magnetic resonance imaging (RTMRI) guided ablation of the cavotricuspid isthmus (CTI) by using a MRI-compatible ablation catheter. METHODS AND RESULTS Cavotricuspid isthmus ablation was performed in an interventional RTMRI suite by using a novel 7 French, steerable, non-ferromagnetic ablation catheter in a porcine in vivo model (n = 20). The c...
BACKGROUND This study evaluated the frequency, the indications and techniques of vascular clamping during liver resection and during thermal destruction therapies, as currently used by hepatic surgeons throughout Europe. METHODS A web-based questionnaire was distributed among 621 physicians, including all members of the European Hepato-Pancreato-Biliary Association and the European Surgical A...
Ultrasound is an attractive modality for temperature monitoring because it is non-ionizing, convenient, inexpensive and has relatively simple signal processing requirements. This modality may be useful for temperature estimation if a temperature-dependent ultrasonic parameter can be identified, measured and calibrated. The most prominent methods for using ultrasound as a non-invasive thermomete...
The issue of multidrug resistance (MDR) has become an increasing threat to public health. One alternative strategy against MDR bacteria would be to construct therapeutic vectors capable of physically damaging these microorganisms. Gold nanoparticles hold great promise for the development of such therapeutic agents, since the nanoparticles exhibit impressive properties, of which the most importa...
Background/introduction This study presents the implementation of protracted mild hyperthermia (HT) delivery to large contiguous volumes in prostate quadrants or hemi-gland targets by utilizing a commercially available MR-guided endorectal ultrasound (ERUS) phased array designed for thermal ablation (ExAblate 2100, InSightec. Ltd). HT-specific beamforming, sonication and control strategies were...
We present a biocompatible, all-glass, 0.2 mm diameter, fiber-optic probe that combines an extrinsic Fabry-Perot interferometry and a proximal fiber Bragg grating sensor; the probe enables dual pressure and temperature measurement on an active 4 mm length, with 40 Pa and 0.2°C nominal accuracy. The sensing system has been applied to monitor online the radiofrequency thermal ablation of tumors i...
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