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Thermal ablation

M. R. McHenry and B. Laub, Ablative Padome Materials Thermal Ablation and Erosion Modelling (13th Intersociety Conf. on Environmental Systems,... [Pg.7]

Thermal ablation using carbon nanotubes is a definite option for use in oncology, especially since nanotubes can be functionalized with targeting modalities like folic acid. Some cancer cell types express large numbers of folic acid receptors on... [Pg.244]

Torti S, Byrne F, Whelan O, Levi N, Ucer B, Schmid M, Torti F, Akman S, Liu J, Ajayan P, Nalamasu O, Carroll D (2007) Thermal ablation therapeutics based on CNx multi-walled nanotubes. International Journal of Nanomedicine 2(4) 707-714. [Pg.265]

The need of designing probes for measuring in vivo temperature is primarily dictated by therapeutical purposes. In fact, useful therapies against tumors like hypertermia or thermal ablation are based on localized heating which selectively kills tumor cells. Such therapies require the achievement of well-defined temperatures that, moreover, have to be maintained constant for a given time. Therefore, a continuous temperature monitoring is essential for the success of the therapy 136). [Pg.218]

Cancer growth is slowed or stopped at temperatures in the range of 42-48 °C, while normal cells can tolerate even higher temperatures [167, 168], Heat treatments can be characterized as hyperthermia, in which the temperature is limited to less than about 50 °C, and thermal ablation, which involves higher temperatures. [Pg.478]

Gold nanoshells [31] Imaging agent, thermal ablation... [Pg.1294]

Deep tissue tumor cell thermal ablation [80]... [Pg.1295]

Direct interstitial infusion has been applied to the treatment of patients with advanced Parkinson s disease, and the design of the protocol is instructive (29). Motor control is severely compromised in these patients because degradation of the substantia nigra ultimately results in massive overinhibition of the motor cortex by the globus pallidus interna (Gpi). One therapeutic approach is to thermally ablate a portion of the Gpi to reduce this inhibition and restore freedom of movement. However, thermal ablation also risks destroying the optic nerve that forms the floor of the Gpi structure. Hence, a chemical means of destroying the Gpi has been evaluated as a potentially more selective alternative. [Pg.124]

Thermal ablation. The SRG is normally 7t-shifted in relation to the interference pattern, and is the result of the application of a very intense pulse of laser light or a high-power continuous wave (cw) laser. The SRGs cannot be optically erased, but rather only thermally erased. In some experiments, some polarization dependence was observed, which cannot be explained with present knowledge of the field. The dye does not need to be azobenzene for such SRGs (see Grzybowski et... [Pg.435]

Combination therapy The use of local-interventional procedures is restricted to a maximum tumour size of 5 cm in diameter. Therefore, a combination of two local techniques is seen as promising. The joint application of PEI and TAB has proved its efficacy for some time. (177) Similarly, there have been reports about the successful use of TACE following laser thermal ablation. (136) Further encouraging options include a combination of TACE and RFTA, TACE with microwave coagulation (149) or TACE with cryotherapy. Using TACE, the size of the HCC can be reduced in some cases, making it possible to carry out subsequent ablation with better results. [Pg.785]

Radiofrequency thermal ablation (RFTA) S. Rossi et al. (1990, 1993) were the first to introduce this procedure. Under analgosedation and local anaesthesia, an expandable, cooled-tip needle electrode is inserted per-cutaneously into the tumour with the help of US, CT or MR guidance. There are various types of probes with some differences. Due to high-frequency alternating current (480-500 kHz), the tumour tissue is gradually heated (up to max. 105 °C). A necrosis voume of 4(-5) cm in diameter can be achieved. An indication is given for 1-3 foci, each with a maximum size of 5 cm in diameter. This also applies to compromised liver func-... [Pg.785]

Dick, E.A., Joarder, R., de Jode, M., Tayior-Robinson, S.D., Thomas, H.C., Foster, G.R., Gedroyc, W.M.W. MR-guided laser thermal ablation of primary and secondary liver tumours. Clin. Radiol. 2003 58 112-120... [Pg.803]

Pacell C.M., Bizzari, G., Cecconi, R, Caspani, B., Magnolfi, F., BiancUni, A., Anelli, V., Pacella, S., Rossi, Z. Hepatocellular carcinoma long-term results of combined treatment with laser thermal ablation and transcatheter arterial chemoembolization. Radiology 2001 219 669-678... [Pg.804]

RFTA Radiofrequency thermal ablation tPA Tissue plasminogen activator... [Pg.906]

Class III—Premarket Approval Devices that support or sustain life or present a significant risk of illness or injury fall under the Class-Ill category. Implants, such as pacemakers and silicone gel breast implants, are Class-Ill products, as are internal tissue adhesives, thermal ablation devices, synthetic ligaments and tendons, vacumn pumps, and prosthetic hips. Class-Ill accounts for about 10% of aU medical devices. [Pg.240]

In general, most TOF-MS studies have given strong indications for photo-thermal ablation mechanisms. To test whether a photochemical mechanism could be identified with TOF-MS, we chose a polymer considered photola-bile, which also has excellent properties as a resist for high-resolution microlithography [111, 225-228]. Here we show that the principal products (chiefly N2) from this triazene polymer have components that are much... [Pg.131]

Experiments with a reference material, i.e., polyimide, for which a photo-thermal ablation mechanism has been suggested, exhibited pronounced differences, e.g., swelling of the surface prior to ablation, modifications of the surface after irradiation, and higher threshold (at an irradiation wavelength where polyimide has the same absorption coefficient as the designed materials). [Pg.237]


See other pages where Thermal ablation is mentioned: [Pg.252]    [Pg.420]    [Pg.2]    [Pg.223]    [Pg.238]    [Pg.242]    [Pg.244]    [Pg.245]    [Pg.247]    [Pg.254]    [Pg.415]    [Pg.70]    [Pg.206]    [Pg.206]    [Pg.478]    [Pg.479]    [Pg.307]    [Pg.1294]    [Pg.1294]    [Pg.310]    [Pg.55]    [Pg.57]    [Pg.440]    [Pg.441]    [Pg.441]    [Pg.437]   
See also in sourсe #XX -- [ Pg.435 ]

See also in sourсe #XX -- [ Pg.435 ]

See also in sourсe #XX -- [ Pg.4 ]

See also in sourсe #XX -- [ Pg.383 ]




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