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Unbound Medicine.
(ultrasonic)
75,786 results
  • Gyökércsúcs rezekciója navigált endodontiai mikrosebészeti technikával. [Journal Article]
    Orv Hetil. 2020 Jul; 161(30):1260-1265.Nagy E, Fráter M, Antal M
  • Surgical guides and three-dimensional (3D) planning softwares used in everyday dental implantology open new possibilities in other fields of dentistry. While using the operation microscope in endodontic microsurgery provides more precise apicectomy, there is still no consent on the exact localisation and size of the bony window to be prepared for this surgery. Our aim is to describe a new, guided…
  • Axial super-resolution in ultrasound imaging with application to non-destructive evaluation. [Journal Article]
    Ultrasonics. 2020 Jun 10; 108:106183.Shastri SK, Rudresh S, … Thittai AK
  • A fundamental challenge in non-destructive evaluation using ultrasound is to accurately estimate the thicknesses of different layers or cracks present in the object under examination, which implicitly corresponds to accurately localizing the point-sources of the reflections from the measured signal. Conventional signal processing techniques cannot overcome the axial-resolution limit of the ultras…
  • [Transcranial microsurgical decompression of the optic canal in surgical treatment of meningiomas of the sellar region]. [Journal Article]
    Zh Vopr Neirokhir Im N N Burdenko. 2020; 84(3):61-73.Kutin MA, Kadashev BA, … Kutin IM
  • CONCLUSIONS: 1. Trepanation of the optic canal in cases of meningiomas of parasellar localization is a relatively safe procedure in the hands of a trained neurosurgeon and does not worsen the results of operations compared with the excision of the same tumors without trepanation of the canal. 2. The literature data and the results of our study make it possible to consider the decompression of the optic canal as an optional, but in many cases, useful option that facilitates the transcranial removal of some meningiomas of the sellar region.
  • StatPearls: Radial Keratotomy Correction [BOOK]
    . StatPearls Publishing: Treasure Island (FL) Fu Lanxing L Manchester Royal Eye Hospital, Manchester University Foundation Trust Patel Bhupendra C. BC University of Utah BOOK
  • Refractive surgery is surgical or laser procedures to alter the eye's refractive power and decrease the patient's dependence on spectacles and contact lenses. Radial keratotomy (RK) was one of the first and most commonly performed refractive surgical procedures of the 20th century. Approximately 10% of practicing ophthalmologists in the United States have performed several hundred thousand RK pro…
  • Experimental validation of a phased array probe model in ultrasonic inspection. [Journal Article]
    Ultrasonics. 2020 Jul 03; 108:106217.Lei X, Wirdelius H, Rosell A
  • New manufacturing technologies such as additive manufacturing facilitate flexible and complex designs and production of components. However, these new techniques should not compromise the safety aspect, which imposes higher demands on the integrity insurance and inspection methods. Phased array ultrasonic testing (PAUT) provides advanced inspection and evaluation processes, whereas qualification …
  • 2D-GeTe: Air Stability, and Photocatalytic Performance for Hydrogen Evolution. [Journal Article]
    ACS Appl Mater Interfaces. 2020 Jul 09 [Online ahead of print]Zhang X, Zhao F, … Feng W
  • As a key method to convert solar into chemical energy, photocatalytic water decomposition has garnered attention. Moreover, the development of graphene and graphene-like 2D materials has brought fresh vitality in the field of photocatalysis. Here, we prepared 2-4 layers of GeTe nanosheets by ultrasonic-assisted liquid phase exfoliation in Argon and Air, which we referred to as Ar-GeTe and O-GeTe,…
  • Characterization of Astrocytic Response after Experiencing Cavitation In Vitro. [Journal Article]
    Glob Chall. 2020 Jul; 4(7):1900014.Wrede AH, McNamara MC, … Hashemi NN
  • When a traumatic brain injury (TBI) occurs, low-pressure regions inside the skull can cause vapor contents in the cerebral spinal fluid (CSF) to expand and collapse, a phenomenon known as cavitation. When these microbubbles (MBs) collapse, shock waves are radiated outward and are known to damage surrounding materials in other applications, like the steel foundation of boat propellers, so it is al…
  • Ultrasonic Assessment of the Medial Temporal Lobe Tissue Displacements in Alzheimer's Disease. [Journal Article]
    Diagnostics (Basel). 2020 Jul 03; 10(7)Baranauskas M, Jurkonis R, … Rastenytė D
  • We aim to estimate brain tissue displacements in the medial temporal lobe (MTL) using backscattered ultrasound radiofrequency (US RF) signals, and to assess the diagnostic ability of brain tissue displacement parameters for the differentiation of patients with Alzheimer's disease (AD) from healthy controls (HC). Standard neuropsychological evaluation and transcranial sonography (TCS) for endogeno…
  • Piezoelectric Sensing Techniques in Structural Health Monitoring: A State-of-the-Art Review. [Journal Article]
    Sensors (Basel). 2020 Jul 03; 20(13)Jiao P, Egbe KI, … Alavi AH
  • Recently, there has been a growing interest in deploying smart materials as sensing components of structural health monitoring systems. In this arena, piezoelectric materials offer great promise for researchers to rapidly expand their many potential applications. The main goal of this study is to review the state-of-the-art piezoelectric-based sensing techniques that are currently used in the str…
  • Active terahertz time differentiator using piezoelectric micromachined ultrasonic transducer array. [Journal Article]
    Opt Lett. 2020 Jul 01; 45(13):3589-3592.Amirkhan F, Robichaud A, … Blanchard F
  • The rapid growth of information technology is closely linked to our ability to modulate and demodulate a signal, whether in the frequency or in the time domain. Recent demonstrations of terahertz (THz) modulation involve active semiconductor metamaterial surfaces or use of a grating-based micromirror for frequency offset tuning. However, a wideband and active differentiator in the THz frequency b…
  • Identification of Stress States in Compressed Masonry Walls Using a Non-Destructive Technique (NDT). [Journal Article]
    Materials (Basel). 2020 Jun 25; 13(12)Jasiński R
  • The structure safety can be assessed, but only indirectly, by identifying material properties, geometry of structures, and values of loads. The complete and comprehensive assessment can be done only after determining internal forces acting inside structures. Ultrasonic extensometry using an acoustoelastic effect (AE) is among the most common non-destructive techniques (NDT) of determining true st…
  • Ultrasonic Sensor Fusion Inverse Algorithm for Visually Impaired Aiding Applications. [Journal Article]
    Sensors (Basel). 2020 Jun 30; 20(13)Kovács G, Nagy S
  • Depth mapping can be carried out by ultrasound measuring devices using the time of flight method. Ultrasound measurements are favorable in such environments, where the light or radio frequency measurements can not be applied due to the noise level, calculation complexity, reaction time, size and price of the device, accuracy or electromagnetic compatibility. It is also usual to apply and fusion u…
  • Fuzzy-Based Approach Using IoT Devices for Smart Home to Assist Blind People for Navigation. [Journal Article]
    Sensors (Basel). 2020 Jun 30; 20(13)Tayyaba S, Ashraf MW, … Manzoor S
  • The demand of devices for safe mobility of blind people is increasing with advancement in wireless communication. Artificial intelligent devices with multiple input and output methods are used for reliable data estimation based on maximum probability. A model of a smart home for safe and robust mobility of blind people has been proposed. Fuzzy logic has been used for simulation. Outputs from the …
  • Safety and efficacy of INTRABEAM intraoperative radiotherapy for invasive thymoma. [Journal Article]
    Medicine (Baltimore). 2020 Jul 02; 99(27):e20964.Cui TX, Dai JG, … Sun JG
  • Intraoperative radiotherapy (IORT) has been used to treat different residual solid tumors after tumor removal and has shown many advantages over other treatment methods. However, the use of IORT for invasive thymoma has not been reported. Therefore, in this study, we tried to determine the safety and efficacy of INTRABEAM IORT for the treatment of invasive thymoma.Among the patients admitted to o…
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