Results 261 to 270 of about 144,492 (309)
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Experimental radiofrequency telethermohypophysectomy
Journal of Neurosurgery, 1971✓ A new means of producing well-delineated lesions of the pituitary gland by the heating of implanted electroseeds with electromagnetic radiation has been tested in a series of eight adult baboons (Papio anubis). The technique shows promise as a future simple and safe means of depressing anterior or posterior pituitary function in a controlled fashion ...
C, Burton, R C, Black
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Types of Radiofrequency Ablation-Pulsed Radiofrequency Ablation
2021Continuous radiofrequency (CRF) ablation has been utilized in the treatment of chronic pain since 1974. Pulsed radiofrequency (PRF) emerged as a way to treat pain generators without the destructive effects associated with CRF. While the complete mechanism of action of PRF is not understood, the proposed mechanisms are the induction of long-term ...
Jackie Weisbein +3 more
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Pupilloplasty by radiofrequency diathermy
Acta Ophthalmologica, 2018AbstractPurposeSeveral methods have been reported to treat pupil deformities. However, there are some disadvantages to these methods. Here, we introduce the new technique of pupilloplasty.MethodsWe retrospectively collected five patients who underwent pupilloplasty by radiofrequency diathermy (RFD) in eyes with acorea or a severe pupillary fibrous ...
Wu Xiang +4 more
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Stereotactic Radiofrequency Hypophysectomy
Stereotactic and Functional Neurosurgery, 1978Clinical indications and technical details of RF hypophysectomy were reviewed. Evaluation of several hundred procedures toward pathologic and symptomatic amelioration of metastatic breast cancer and diabetic retinopathy, and also a few cases of intrasellar tumor, indicated sufficient benefit for endorsement in selected patients.
N T, Zervas, H, Hamlin
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Bipolar and Multipolar Radiofrequency
Dermatologic Surgery, 2014The increased demand for anti-aging treatments over the past decade has fueled the development of multimodality devices. This allows for more efficacious treatment of dermal defects, excess adiposity, and skin laxity. Radiofrequency (RF) devices are constantly evolving and consequently adding multiple indications for their use.
Neil S, Sadick +3 more
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Memristors as radiofrequency switches
2016 IEEE International Symposium on Circuits and Systems (ISCAS), 2016In this paper, we introduce a novel application of memristor as a radiofrequency (RF) switch. We design and build a nanoscale memristor by placing gold and silver electrodes on silicon oxide with a 35 nm airgap in between. We program the device with a voltage as low as −0.4 V and achieve an ON/OFF conductance ratio of 1012.
Shuang Pi +3 more
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Radiofrequency Treatment in the Netherlands
Pain Practice, 2002Abstract: A national enquiry was developed by the Pain Control Department of the Dutch Society of Anesthesiology (NVA) in co‐operation with the National Organisation for Quality Assurance in Hospitals (CBO). A questionnaire for retrospective collection of invasive pain control data was sent to all (147) Dutch hospitals as part of the “Quality Assurance
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Stereotactic Radiofrequency Ablation
CardioVascular and Interventional Radiology, 2010To describe the technique of percutaneous stereotactic radiofrequency ablation (SRFA) and its application in a patient with an unresectable multifocal intrahepatic cholangiocarcinoma (ICC).A 72-year-old man presented with two nodules of an ICC with a maximum diameter of 10 and 4 cm, respectively.
Reto, Bale +2 more
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Biophysics of Radiofrequency Ablation
Critical Reviews™ in Biomedical Engineering, 2010Radiofrequency (RF) ablation is a treatment modality that kills unwanted tissue by heat. Starting with cardiac arrhythmia treatment in the 1980s, RF ablation has found clinical application in a number of diseases, and is now the treatment of choice for certain types of cardiac arrhythmia and certain cancers. During RF ablation, an electrode is inserted
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