Selective tumor heating by shortwave radiofrequency (RF)
نویسندگان
چکیده
منابع مشابه
Simultaneous radiofrequency (RF) heating and magnetic resonance (MR) thermal mapping using an intravascular MR imaging/RF heating system.
Previous studies have confirmed the possibility of using an intravascular MR imaging guidewire (MRIG) as a heating source to enhance vascular gene transfection/expression. This motivated us to develop a new intravascular system that can perform MR imaging, radiofrequncy (RF) heating, and MR temperature monitoring simultaneously in an MR scanner. To validate this concept, a series of mathematica...
متن کاملTumor cure and cell survival after localized radiofrequency heating.
Radiofrequency electromagnetic fields at 13.56 MHz were used to heat locally EMT-6 sarcomas and KHJJ carcinomas in BALB/cKa mice. Temperature profiles obtained in tumors during treatment showed uniform temperature distribution throughout the tumor volume with no systemic hyperthermia. Temperature could be maintained at a stable level throughout treatment by adjustment of power. Tumors were trea...
متن کاملRadiofrequency Energy-induced Heating of Bovine Articular Cartilage Using a Temperature-controlled, Bipolar Rf Electrode
Chondrocytes are known to be thermal-sensitive, insofar as excessive temperatures may cause cellular death and promote the degeneration of articular cartilage (3). Therefore, it is imperative to determine and use the lowest possible settings of RF energy that will produce the desired effects (1-3). Similar to other studies conducted to characterize temperature changes for tissues treated using ...
متن کاملA Review of Rf Heating
The funadmental aspects of RF heating theory is reviewed and a summary of recent experimental results are given. All frequency regimes are covered, from very low frequency magnetic pumping to electron cyclotron resonance heating.
متن کاملIntolerable Heating by Resonating RF’ Waves around Guidewires
Introduction In the rapidly developing field of interventional MR, there has been growing concern about RF-induced heating in metallic devices[3]. In the work reported here, we concentrate on the RF heating of a widely used intravascular guidewire, the Terumo guidewire (Tokyo, Japan), having a nitinol (Nickel-Titanium) core. Since nitinol is not ferromagnetic, the Terumo meets an important cond...
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ژورنال
عنوان ژورنال: Cancer
سال: 1980
ISSN: 0008-543X,1097-0142
DOI: 10.1002/1097-0142(19801101)46:9<1962::aid-cncr2820460911>3.0.co;2-n