نتایج جستجو برای: low level ultrasound

تعداد نتایج: 2180111  

Journal: یافته 2009

Akbari A1 1. Assistant Professor, Department of Physiotherapy, Faculty of Medicine, Zahedan University of Medical Sciences Abstract Background: Shoulder pain is the third most prevalent cause of musculoskeletal disorder after low back and cervical pains. Most of the shoulder symptoms are attributed to the rotator cuff. The objective of this study was to compare the effects of low-power ...

Amir Hoshang Barati Mahboobeh Alamolhoda Manijhe Mokhtari-Dizaji,

Introduction: Transient cavitations induced by low frequency irradiation of ultrasound can be used to treat tumors. Previous studies in in-vitro experiments have shown that induced cavitation by dual or multiple frequencies of ultrasound is greater than induced cavitation by single frequency irradiation. In this study, we compared and evaluated the treatment effects of dual frequency irradiatio...

Acoustic cavitation which occurs at high intensities of ultrasound waves can be fatal for tumor cells. The existence of dissolved gases and also the presence of nanoparticles (NPs) in a liquid, irradiated by ultrasound, decrease the acoustic cavitation onset threshold and the resulting bubbles collapse. On the other hand, due to unique capabilities and optical properties of gold nanoparticles (...

Journal: :iranian journal of medical physics 0
ameneh sazgarnia assistant professor, medical physics research center, faculty of medicine, mashhad university of medical sciences, mashhad, iran mohammad hosein bahreyni toosi professor, medical physics research center, faculty of medicine, mashhad university of medical sciences, mashhad, iran ali shokry msc. in medical physics, mashhad university of medical sciences, mashhad, iran amir hosein sazgarnia m.sc. in electrical engineering, product technical support dept., huawei technologies co., tehran, iran. parvin layegh assistant professor, research center of endocrinology and metabolism, mashhad university of medical sciences, mashhad, iran tayebeh kianoush instructor, dept. of biochemistry, mashhad university of medical sciences, mashhad, iran

introduction: sonophoresis has been assessed as a novel approach to create skin permeability and drug delivery using low frequencies of ultrasound waves in the range of 20 khz to 3 mhz. in this study, a system including seven 40 khz piezoelectric transducers and an insulin chamber designed by the medical physics research center has been evaluated on hyperglycemic rabbits. materials and methods:...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده ادبیات و علوم انسانی 1391

with the introduction of communicative language teaching, a large number of studies have concerned with students’ oral participation in language classrooms. although the importance of classroom participation is evident, some language learners are unwilling to engage in oral activities. this passivity and unwillingness to participate in language classroom discussions is known as “reticence”. rev...

Brain stimulation techniques are important in both basic and clinical studies. Majority of well-known brain stimulating techniques have low spatial resolution or entail invasive processes. Low intensity focused ultrasound (LIFU) seems to be a proper candidate for dealing with such deficiencies. This review recapitulates studies which explored the effects of LIFU on brain str...

Journal: :journal of lasers in medical sciences 0
seyed mansour rayegani professor, departement of physical medicine and rehabilitation, shahid beheshti university of medical sciences,tehran mohammad hasan bahrami assistant professor, departement of physical medicine and rehabilitation, shahid beheshti university of medical sciences,tehran darioush elyaspour assistant professor, departement of physical medicine and rehabilitation, shahid beheshti university of medical sciences,tehran mahdi saeidi assistant professor, departement of physical medicine and rehabilitation, shahid beheshti university of medical sciences,tehran hosein sanjari physiatrist, department of phyhysical medicine and rehabilitation, shahid beheshti university of medical sciences,tehran

introduction: low-level laser therapy (lllt) is thought to have analgesic and biomodulatory effects. our objective was to assess the pain-relieving effect of lllt and possible changes in joint stiffness and disability of patients with knee osteoarthritis (koa) and compare it to the more commonly used modality; therapeutic ultrasound(us). methods: 37 patients with mild or moderate koa were rando...

Ali Shokry Ameneh Sazgarnia, Amir Hosein Sazgarnia Mohammad Hosein Bahreyni Toosi Naser Tayyebi Meybodi Parvin Layegh Saeed Ebrahim-zadeh Tayebeh Kianoush

Introduction: Sonophoresis has been assessed as a novel approach to create skin permeability and drug delivery using low frequencies of ultrasound waves in the range of 20 kHz to 3 MHz. In this study, a system including seven 40 kHz piezoelectric transducers and an insulin chamber designed by the Medical Physics Research Center has been evaluated on hyperglycemic rabbits. Materials and Methods:...

Journal: :journal of medical signals and sensors 0
nasrollah jabbari mohammad hossein asghari hassan ahmadian peyman mikaili

the application of low-frequency ultrasound for transdermal delivery of insulin is of particular public interest due to the increasing problem of diabetes. the purpose of this research was to develop an air ultrasonic ceramic transducer for transdermal insulin delivery and evaluate the possibility of applying a new portable and low-cost device for transdermal insulin delivery. twenty-four rats ...

Journal: :basic and clinical neuroscience 0
ehsan rezayat institute for cognitive science studies, pazhouheshkadeh blv., safir omid blv., pardis new city (15 kms north east of tehran), theran, iran. iman ghodrati toostani tehran,iran

brain stimulation techniques are important in both basic and clinical studies. majority of well-known brain stimulating techniques have low spatial resolution or entail invasive processes. low intensity focused ultrasound (lifu) seems to be a proper candidate for dealing with such deficiencies. this review recapitulates studies which explored the effects of lifu on brain structures and its func...

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