Results 1 to 10 of about 1,069,804 (254)
Structural Design and Experimental Studies of Resonant Fiber Optic Scanner Driven by Co-Fired Multilayer Piezoelectric Ceramics [PDF]
Micromachines, 2023 Piezo-driven resonant fiber optic scanners are gaining more and more attention due to their simple structure, weak electromagnetic radiation, and non-friction loss.
Liyuan He +4 more
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Lissajous Scan From an Optical Fiber Scanner
IEEE Access, 2023 Optical devices are frequently being used in medical applications to image lesions and malignancies, and to assist with surgical procedures. The advances in micro-electro-mechanical systems (MEMSs) and optics led to the fabrication of flexible endoscopes
Mandeep Kaur, Carlo Menon
doaj +4 more sources
High resolution imaging of impacted CFRP composites with a fiber-optic laser-ultrasound scanner
Photoacoustics, 2016 Damage induced in polymer composites by various impacts must be evaluated to predict a component’s post-impact strength and residual lifetime, especially when impacts occur in structures related to human safety (in aircraft, for example).
Ivan Pelivanov +6 more
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Investigation of lateral geniculate nucleus volume and diffusion tensor imaging in patients with normal tension glaucoma using 7 tesla magnetic resonance imaging. [PDF]
PLoS ONE, 2018 BACKGROUND:There is evidence that glaucoma is a neurodegenerative disease involving the whole visual pathway. We prospectively examined potential benefits of volumetry of the lateral geniculate nucleus (LGN) and diffusion tensor imaging (DTI) using a new
Manuel A Schmidt +6 more
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Instruments, 2021 We describe the design and performance of BRPET, a novel dedicated breast PET (dbPET) scanner designed to maximize visualization of posterior regions of the breast. BRPET uses prone imaging geometry and a 12-module detector ring built from pixelated LYSO
Andrew M. Polemi +8 more
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Optofluidic Micromachined Platform for Refractive Index Measurement
Chemosensors, 2022 We present a combination of micromachined optofluidic platforms equipped with a fiber-optic sensing configuration based on a three-path Mach–Zehnder interferometer (MZI) for simultaneous measurement of the refractive index of liquids and the ...
Zoran Djinović +2 more
doaj +1 more source
Quantitative MR thermometry based on phase-drift correction PRF shift method at 0.35 T
BioMedical Engineering OnLine, 2018 Background Noninvasive magnetic resonance thermometry (MRT) at low-field using proton resonance frequency shift (PRFS) is a promising technique for monitoring ablation temperature, since low-field MR scanners with open-configuration are more suitable for
Yuping Chen +5 more
doaj +1 more source
Sensors, 2019 This article presents a solution for continuous monitoring of both respiratory rate (RR) and heart rate (HR) inside Magnetic Resonance Imaging (MRI) environments by a novel ballistocardiography (BCG) fiber-optic sensor.
Jan Nedoma +3 more
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NeuroImage: Clinical, 2020 Introduction: White matter damage in the visual pathway is common in multiple sclerosis (MS) and is associated with retinal thinning, although the underlying mechanism of association remains unclear. The goal of this work was to evaluate the presence and
Chanon Ngamsombat +9 more
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Angularly Resolved Deep Brain Fluorescence Imaging Using a Single Optical Fiber
International Journal of Optics, 2018 In this article, we report the development of a minimally invasive fiber optic based fluorescence probe which can reach deep brain objects and measure the intensity and spatial distribution of fluorescence signals in the tissue. In this design, the brain
Israel J. De La Rosa +4 more
doaj +1 more source