نتایج جستجو برای: conventional ultrasound
تعداد نتایج: 363343 فیلتر نتایج به سال:
AIM The combination of different imaging modalities through the use of fusion devices promises significant diagnostic improvement for breast pathology. The aim of this study was to evaluate image quality and clinical feasibility of a prototype fusion device (fusion prototype) constructed from a standard tomosynthesis mammography unit and a standard 3D ultrasound probe using a new method of brea...
various novel techniques including ultrasound-assisted extraction, microwave-assisted extraction and supercritical fluid extraction have been developed for the extraction of medicinal plants in order to shorten the extraction time, decrease the solvent consumption, increase the extraction yield, and enhance the quality of extracts. this review was conducted to introduce and compare the conventi...
Introduction: Nasal bone fractures are one of the most common problems in patients who are referred to otolaryngology centers. We aimed to evaluate physical examination, sonography and conventional lateral nasal bone radiography in patients with nasal bone trauma and its relation to intra-operative findings. Methods: This prospective study was performed on 200...
In a supercritical fluid extraction (SFE) unit, one generally can change the temperature, pressure, extraction bed size, solvent flow rate, among others, in order to maximize the global yield. The morphology of the solid substrate particle can also influence the extraction efficiency, since the solvent must cross diffusive paths inside the solid particle, in order to extract specific compounds ...
AIM To determine the applicability of pocket ultrasound as a complementary method for clinical evaluation during the first trimester of pregnancy. MATERIAL AND METHODS A prospective cross-sectional study was conducted with 86 pregnant women attended in an emergency. The same operator performed the first examination with pocket device Vscan (General Electric, Vingmed Ultrasound, Horten, Norway...
If we compare the dermatoscopic characteristics of our lesion with those reported for nonanetodermic pilomatrixomas in the study by Zaballos et al., we find that irregular white structures, homogeneous red areas, and irregular linear vessels are common features. The dilated vessels and hemorrhages observed in pathology may correspond to the linear vessels and homogeneous reddish areas present i...
OBJECTIVE Endobronchial ultrasound-guided transbronchial needle aspiration could be performed better with computer-based preparation. METHODS Three-dimensional virtual bronchoscopy was used to develop 2 modes of computer-based "virtual endobronchial ultrasound." "Virtual endobronchial ultrasound standard" used conventional virtual bronchoscopy to determine the spot and angle for transbronchia...
abstract: in this study, response surface methodology was used to optimize ultrasound osmotic pretreatment with finished freeze drying of black cherries. freeze drying is a separation process based on the sublimation phenomenon. this process has the following advantages as compared to the conventional drying process, maintenance of the structure, moisture removal at low temperature (reduced tr...
In conventional ultrasound detection in structures, a fiber Bragg grating (FBG) is glued on or embedded in the structure. However, application of strain to the structure can influence the sensitivity of the FBG toward ultrasound and can prevent its effective detection. An FBG can work as a strain-insensitive ultrasound sensor when it is not directly glued to the monitored structure, but is inst...
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