نتایج جستجو برای: دستگاه ultrasound
تعداد نتایج: 139739 فیلتر نتایج به سال:
the aim of this research was to use osmosis-ultrasound compound pre-treatment and studying the time of drying and the potentiality to rehydration in dried samples of kiwi fruit (hayvard variety). the samples were drained in three timed phases, 10, 20 and 30 minutes in room temperature in 30, 50 and 70 bx in ultrasound bath osmosis solutions. the results of drying time showed that by decreasing ...
background: recent reports have suggested that ultrasound-guided embryo transfer (ug-et) might improve pregnancy rates. objective: to determine whether transabdominal ug-et is a useful tool for increasing pregnancy and implantation rates in patients undergoing ivf or icsi. materials and methods: a prospective randomized clinical trial was conducted in 180 patients in order to compare embryo tra...
Pleural effusion (PE) is common among ICU and acutely ill patients. Traditionally plain chest radiography (CXR) has been done for pleural effusion evaluation in ICU. However, better results have been reported by ultrasound for the diagnosis of this condition in ICU. In this study, we compared two methods of ultrasound and CXR in PE detection in ICU patients. Also we studied the percentage of t...
introduction: the parikh’s formula is a calculation method that considers menstrual cycle duration in women who have an unusual interval of menstruation cycle. since the accurate estimation of gestational age affects pregnancy outcomes, the present study aimed to compare the first trimester ultrasound and parikh’s formula in determining the expected date of delivery (edd). materials and methods...
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 (...
Background: Initial studies have shown that low-energy ultrasound stimulates living tissue cells to reduce regeneration or speed up their recovery. The purpose of this study was to examine the effects of various ultrasound parameters on the speed of recovery in injured sciatic nerves. Methods: NMRI mice (n = 200) with injured left paw, caused by crushing their sciatic nerves, were randomly sel...
ultrasound is one of the preferred modalities for evaluation of the parathyroid glands. this study was undertaken to determine the accuracy of high resolution ultrasound for secondary hyperparathyroidism in patients with chronic renal failure. from march 2008 to march 2009, ninety-one hemodialysis patients were examined by high resolution ultrasound (14 mhz) of the parathyroid glands in compari...
in this study, independent variables were time (1-15 min0, temperature (25-45) and power of ultrasound. results showed that time of ultrasound was linear (p
Background: Hemodialysis is a process of removing waste and excess fluid from blood when kidneys cannot function efficiently. It often involves diverting blood to the filter of the dialysis machin to be cleared of toxic substances. Fouling of pores in dialysis membrane caused by adhesion of plasma protein and other toxins will reduce the efficacy of the filtre.Objective: In This study, the infl...
Background: Intravascular imaging is a tool to detect coronary artery atherosclerosis which plays the major role in vessel stenosis degree determination and plaque pathology as a supplement of invasive angiography. This study aimed at comparing Intravascular imaging with invasive angiography. Materials and Methods: For retrieving second type studies, PubMed, Cochrane Library and Centre for R...
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