Results 11 to 20 of about 56,841 (268)
Photochemistry and Photobiology, 1991 Abstract— —Continuous wave and pulsed laser ablation of tissue is described as an explosive event. A subsurface temperature maximum and superheated tissue produce high pressures that eject fragments from the tissue. Decreased water content due to dehydration and vaporization decreases thermal conductivity which reduces heat conduction. Also, a decrease
A J, Welch +4 more
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Academic Radiology, 2009 To compare thermal dosimetry metrics for specified diameters of coagulation achieved using three different ablation energy sources.204 ablations measuring 20, 30, or 40 +/- 2 mm were created in an ex-vivo bovine liver model using 1) 2.5 cm cluster RF electrodes (n = 114), 2) 3 cm microwave antennas (n = 45), and 3) 3 cm laser diffusing fibers (n = 45).
Pawel, Mertyna +3 more
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Thermal ablation of hepatocellular carcinoma
Journal of Medical Imaging and Radiation Oncology, 2023 SummaryPercutaneous treatment of hepatocellular carcinoma (HCC) by means of thermal ablation (TA) has been introduced in clinical guidelines as a potentially curative treatment for the early stages of the disease since the early 2000s. Due to its safety profile and cost‐effectiveness, TA can be offered as a first‐line treatment for patients with HCC ...
Crocetti, Laura +4 more
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e-Polymers, 2021 By introducing functional fillers into the ethylene propylene diene monomer matrix, the anti-ablation, thermal insulation, and adhesive layer were prepared, respectively.
Ren Jingwen +3 more
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Thermal ablation of hepatocellular carcinoma [PDF]
Cancer Imaging, 2008 Hepatocellular carcinoma (HCC) is the fifth most common cause of cancer, and its incidence is increasing worldwide because of the dissemination of hepatitis B and C virus infection. Patients with cirrhosis are at the highest risk of developing HCC and should be monitored every 6 months to diagnose the tumour at an early, asymptomatic stage.
CROCETTI, LAURA +1 more
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International Journal of Aerospace Engineering, 2020 Carbon/carbon composites are usually used as a thermal protection material in the nose cap and leading edge of hypersonic vehicles. In order to predict the thermal and ablation response of a carbon/carbon model in a hypersonic aerothermal environment, a ...
Xuewen Sun, Haibo Yang, Tao Mi
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Oncology Letters, 2016 Radiofrequency ablation (RFA) and cryoablation are alternative forms of therapy used widely in various pathological states, including treatment of carcinogenesis. The reason is that ablation techniques have ability of modulating the immune system.
Liu, Yong +3 more
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Thermal Ablation of Lung Tumors [PDF]
Surgical Oncology Clinics of North America, 2011 The 5-year survival for all stages of nonsmall cell lung cancer (NSCLC) remains bleak, having increased from 13% to just 16% over the past 30 years. Despite promising results in nonoperative patients with NSCLC and pulmonary metastatic disease, thermal ablation appears to be limited by large tumor size and proximity to large vessels.
P David, Sonntag +4 more
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Polymers and Polymer Composites, 2022 Polyimide is a class of resins with high heat resistance, and their composites have a wide range of applications in military and civilian. However, the application of polyimides as an ablation and thermal insulation material has always been a challenge ...
Qinging Xu +5 more
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Heart Rhythm O2, 2023 Background: Pulsed field ablation (PFA) has emerged as a novel energy source for the ablation of atrial fibrillation (AF) using ultrarapid electrical pulses to induce cell death via electroporation. Objective: The purpose of this study was to compare the
Omar M. Aldaas, MD +10 more
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