نتایج جستجو برای: radiofrequency hyperthermia

تعداد نتایج: 27475  

Journal: :avicenna journal of medical biotechnology 0

background: magnetic nanoparticles in a variable magnetic field are able to produce heat. this heat (42-45°c) has more selective effect on fast dividing cancer cells than normal tissues. methods: in this work magnetite nanoparticles have been prepared via co-precipitation and phase identification was performed by powder x-ray diffraction (xrd). magnetic parameters of the prepared nanoparticles ...

Journal: :iranian journal of medical physics 0
a. nurouzi m.sc. in medical physics, tehran university of medical sciences, tehran, iran. m. j. abolhasani assistant professor, physics and biomedical engineering dept., tehran university of medical sciences, tehran, iran. research center for science & technology in medicine, imam khomeini hospital, tehran, iran. a. takavar professor, physics and biomedical engineering dept., tehran university of medical sciences, tehran, iran. m. a. oghabian assistant professor, physics and biomedical engineering dept., tehran university of medical sciences, tehran, iran. research center for science & technology in medicine, imam khomeini hospital, tehran, iran. h. ghanaati associate professor, radiology dept., medical imaging center, imam khomeini hospital, tehran university of medical sciences , tehran, iran.

introduction:  the  success  of  hyperthermia  depends  on  the  accuracy  of  the  temperature  monitoring in the tumor and the surrounding normal tissue. in this study, the temperature changes  were determined by computing the speckle displacement in the ultrasound digital images. speckle  tracking algorithm was used to compute the displacement.  materials and methods: the experiment was perf...

Journal: :cell journal 0

objective: in radiation treatment, the irradiation which is effective enough to control the tumors far exceeds normal-tissues tolerance. thus to avoid such unfavourable outcomes, some methods sensitizing the tumor cells to radiation are used. iododeoxyuridine (iudr) is a halogenated thymidine analogue that known to be effective as a radiosensitizer in human cancer therapy. improving the potenti...

Journal: :International Journal of Molecular Sciences 2023

The production of non-toxic and homogeneous colloidal solutions nanoparticles (NPs) for biomedical applications is extreme importance nowadays. Among the various methods generation NPs, pulsed laser ablation in liquids (PLAL) has proven itself as a powerful efficient tool fields, allowing chemically pure silicon to be obtained. For example, laser-synthesized (Si NPs) are widely used contrast ag...

ژورنال: توانبخشی 2013
سعیدی‌بروجنی1, محمدجواد, حامی, جواد, سازگار, قاسم,

Objective: Febrile seizures are the most common seizure disorder in childhood, and occur in 2-5% of children. While simple febrile seizures are frequently described as inoffensive disorder there are evidence suggesting the association between simple febrile seizures and hippocampal abnormalities in adulthood. This study was designed to evaluate the protein levels of Bcl-2 and Bax in the rat neo...

فاتحی, داریوش,

Due to importance of combination therapies in cancer treatment, this study was performed to find the effects of hyperthermia and neutron irradiation and heir combination on the human lymphocytes. Blood samples were treated separately with 41.5 °C for 30 and 60 minutes, 43 °C for 15 and 30 minutes, as well as 10 cGy neutron irradiation. They also treated with hyperthermia followed by irradiation...

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