نتایج جستجو برای: ablation

تعداد نتایج: 49404  

Journal: :journal of lasers in medical sciences 0
mohammad karim shahrzad laser application in medical sciences research center, shohada tajrish medical center, shahid beheshti university of medical sciences, tehran, iran

thermal ablation therapies for benign thyroid nodules have been introduced in recent years to avoid the complications of traditional methods such as surgery. despite the little complications and the reportedly acceptable efficacy of thermal ablation methods, quite few medical centers have sought the potential benefits of employing them. this paper provides an introduction to the literature, pri...

Journal: :the journal of tehran university heart center 0
ahmad yamini sharif tehran heart center, tehran university of medical sciences, tehran, iran. gholamreza davoodi tehran heart center, tehran university of medical sciences, tehran, iran. ali vasheghani farahani tehran heart center, tehran university of medical sciences, tehran, iran. hadi fadavi tehran heart center, tehran university of medical sciences, tehran, iran. ali kazemi saeed tehran heart center, tehran university of medical sciences, tehran, iran. saeed sadeghian tehran heart center, tehran university of medical sciences, tehran, iran.

the use of diagnostic and therapeutic methods for assessing pulmonary vein due to its status as a main source of ectopic beats for the initiation of atrial dysrrythmias is strongly recommended.   we report the case of a 13-year-old girl who was admitted to our hospital with the electrocardiogram manifestation of an ectopic atrial tachycardia. the focus of arrhythmia was inside the right upper p...

 In this paper, the laser ablation process based on the irradiation of nanosecond pulsed lasers on a copper target surface in the presence of Helium gas is studied. The dynamical behaviors of the generated plasma in the helium gas and evaporated copper at the atmospheric pressure are examined using a laser pulse, laser wavelength of and intensity of 7×1010W/cm2. A one-dimensional thermal model ...

جعفری معز, هدا , سیف ربیعی, محمدعلی , فراهانی, فرهاد , هاشمیان, فرناز ,

Introduction & Objective: Chronic tonsillitis with caseum has been proven to be the cause of halitosis. The objective of this study was to evaluate the efficacy and safety of temperature-controlled radiofrequency tonsil ablation in the treatment of halitosis caused by chronic tonsil-litis with caseum. Materials & Methods: In this clinical trial study 28 adult patients with halitosis due to ch...

Journal: :iranian journal of nuclear medicine 2000
mohammad eftekhari behnam hajian armaghan fard-esfahani mohsen saghari

differentiated thyroid carcinomas usually show good uptake and response to i-131 ablative treatment. in this study, 90 patients following near total thyroidectomy who were referred to our institute for i-131 therapy are retrospectively studied. the patients are divided in two groups. group 1 revealed complete ablation after one dose of i-131. group 2 needed more than one dose of i-131 for ablat...

Journal: :anesthesiology and pain medicine 0
matthew david vanderhoek department of anesthesia and operative services, san antonio military health system, san antonio military medical center, san antonio, usa; department of anesthesia and operative services, san antonio military health system, san antonio military medical center, san antonio, 3551 roger brooke dr., fort sam houston, tx 78234, usa. tel: +1-2109168666, fax: +1-2102927986 hieu t hoang department of anesthesia and operative services, san antonio military health system, san antonio military medical center, san antonio, usa brandon goff department of orthopaedics and rehabilitation, san antonio military health system, san antonio military medical center, san antonio, usa

occipital neuralgia is a condition manifested by chronic occipital headaches and is thought to be caused by irritation or trauma to the greater occipital nerve (gon). treatment for occipital neuralgia includes medications, nerve blocks, and pulsed radiofrequency ablation (prfa). landmark-guided gon blocks are the mainstay in both the diagnosis and treatment of occipital neuralgia. ultrasound is...

زمردیان, علیرضا,

Thin films of superconductor YBaCuO(YBCO) and Pb(ZrTi)O(PZT) is grown by laser ablation technique to make an electronic device. The quality and the structure of the films is studied by X-ray diffraction (XRD) and Auger Electron Spectroscopy (AES). A quantitative analysis of the films is also deduced from AES study. Analysis of the films show that the YBCO is grown in (001) and PZT in (10...

Journal: :journal of biomedical physics and engineering 0
a. nickfarjam tarbiat modares university, medical physics department, tehran, iran. s. m. p. firoozabadi tarbiat modares university, medical physics department, tehran, iran. b. kalaghchi cancer research center, tehran university of medical sciences, tehran, iran.

background: irreversible electroporation (ire) is a novel tumor ablation technique. ire is associated with high electrical fields and is often reported in conjunction with thermal damage caused by joule heating. for good response to surgery it is crucial to produce minimum thermal damage in both tumoral and healthy tissues named non-thermal irreversible electroporation(ntire). non-thermal irrev...

Journal: :medical journal of islamic republic of iran 0
nasser simforoosh from the department of urology, shahid labbafi nejad medical center, shahid beheshti university of medical sciences, tehran, islamic republic of iran

classic anti reflux procedures on children with a history of posterior urethral valve does not usually yield good results and often ends up with ureteral obstruction and even permanent urinary diversion. from 1981 through 1988,21 boys with history of posterior urethral valve (puv) underwent evaluation for vesicoureteral (vu) reflux 17 boys had vu reflux. following valve ablation, reflux disappe...

Journal: :بینا 0
محمد زارع m zare ophthalmic research center, shahid beheshti university of medical sciences, tehran, iranتهران- پاسداران- بوستان نهم- خیابان پایدارفرد (خیابان امیر ابراهیمی)- پلاک 23- مرکز تحقیقات چشم سپهر فیضی s feizi ophthalmic research center, shahid beheshti university of medical sciences, tehran, iranتهران- پاسداران- بوستان نهم- خیابان پایدارفرد (خیابان امیر ابراهیمی)- پلاک 23- مرکز تحقیقات چشم حامد اسفندیاری h esfandiari ophthalmic research center, shahid beheshti university of medical sciences, tehran, iranتهران- پاسداران- بوستان نهم- خیابان پایدارفرد (خیابان امیر ابراهیمی)- پلاک 23- مرکز تحقیقات چشم شهرام صالحی راد sh salehirad ophthalmic research center, shahid beheshti university of medical sciences, tehran, iranتهران- پاسداران- بوستان نهم- خیابان پایدارفرد (خیابان امیر ابراهیمی)- پلاک 23- مرکز تحقیقات چشم احمد عظیم زاده a azimzadeh بیمارستان شهید چمران تهران

purpose: to assess alterations in parameters measured by the ocular response analyzer (ora) after photorefractive keratectomy (prk) with or without 0.02% mitomycin c (mmc) in myopic eyes. methods: in 33 right eyes of 33 patients, iop was determined using the goldmann applanation tonometry (gat) before and 3 months after prk. corneal hysteresis (ch), corneal resistance factor (crf), goldmann-cor...

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