نتایج جستجو برای: Ultrasound Stimulation
تعداد نتایج: 357533 فیلتر نتایج به سال:
Objective: Myofascial pain syndrome is a common disorder with a prevalence of up to 85%. It is characterized by the presence of trigger points, which all people are commonly encountered at least once throughout their lifespan. Different physical therapy and medical treatments have used to manage myofascial pain syndrome. Intramuscular electrical stimulation intervention is a relatively new trea...
Aims and background: The infraclavicular nerve block as a method for anesthesia or analgesia in upper extremities that can be performed under guide of nerve stimulation or ultrasound. One of the adverse reaction to this method is the local anesthetic systemic toxicity that has been decreased when using the ultrasound to avoid intravascular injection. Case report: This case report explains a...
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...
Low frequency ultrasound (<1 MHz) has been demonstrated to be a promising approach for non-invasive neuro-stimulation. However, the focal width is limited to be half centimeter scale. Minimizing the stimulation region with higher frequency ultrasound will provide a great opportunity to expand its application. This study first time examines the feasibility of using high frequency (5 MHz) ultraso...
background: artificial stimulation of mouse oocyte, in the absence of sperm contribution, can induce its parthenogenic activation of oocyte. ultrasound is one of the newest methods for artificial activation of mammal oocytes, and its successful utilization in pig oocyte activation has been recently reported. our objective was to assess the effect of ultrasound on mouse oocyte activation. materi...
It is known that ultrasound affects action potentials in neurons, but the underlying principles of ultrasonic neural stimulation are not clearly elucidated yet. In this study, we measured the action potentials of rat hippocampal neurons cultured on multi-electrode arrays during ultrasound stimulation. From most of electrodes, it was observed that the ultrasound stimulation increased the frequen...
Focused ultrasound is a promising noninvasive technology for neural stimulation. Here we use the isolated salamander retina to characterize the effect of ultrasound on an intact neural circuit and compared these effects with those of visual stimulation of the same retinal ganglion cells. Ultrasound stimuli at an acoustic frequency of 43 MHz and a focal spot diameter of 90 μm delivered from a pi...
Key points † Percutaneous nerve stimulation is a recently introduced technique to facilitate peripheral nerve block. † We evaluated the ability of this technique to localize nerves of the brachial plexus as verified by ultrasound imaging in 20 volunteers. † There was only a 10% concordance between the most superficial nerves identified by percutaneous stimulation and ultrasound imaging. Backgro...
Most of the published studies concerning platelet aggregation were performed with chemical stimulation procedures, however, mechanical stimulation might be a better simulation of physiological activation of platelets. In order to evaluate the influence of ultrasound on platelet aggregation in vitro, we developed an ultrasound device in a standardized set-up, and we evaluated the influence of li...
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