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Sensors, Vol. 20, Pages 3063: A Novel Singular Value Decomposition-Based Denoising Method in 4-Dimensional Computed Tomography of the Brain in Stroke Patients with Statistical Evaluation
Young-Jin Jung Computed tomography (CT) is a widely used medical imaging modality for diagnosing various diseases. Among CT techniques, 4-dimensional CT perfusion (4D-CTP) of the brain is established in most centers for diagnosing strokes and is considered the gold standard for hyperacute stroke diagnosis. However, because the detrimental effects of high radiation doses from 4D-CTP may cause serious health risks in stroke survivors, our research team aimed to introduce a novel image-processing technique. Our singular value decomposition (SVD)-based image-processing technique can improve image quality, first, by sepa...
Source: Sensors - May 27, 2020 Category: Biotechnology Authors: Wonseok Yang Jun-Yong Hong Jeong-Youn Kim Seung-ho Paik Seung Hyun Lee Ji-Su Park Gihyoun Lee Beop Min Kim Young-Jin Jung Tags: Article Source Type: research

Sensors, Vol. 17, Pages 2811: Dual-Wavelength Laser Speckle Contrast Imaging (dwLSCI) Improves Chronic Measurement of Superficial Blood Flow in Hands
In this study, we developed a dual-wavelength laser speckle contrast imaging (dwLSCI) method and a portable device for imaging the blood flow and tissue perfusion in human hands. Experimental data showed that dwLSCI could retrieve the vein vasculatures under the surface skin, and it further provided accurate measurements of vein blood flow signals, tissue perfusion signals, and fingertip perfusion signals, which assist with assessments of rehabilitation therapy for stroke patients. Fingertip perfusion signals demonstrated better performance in early assessments, while vein blood flow signals assisted the Fugl–Meyer Asses...
Source: Sensors - December 5, 2017 Category: Biotechnology Authors: Lingke Zhang Li Ding Miao Li Xiaoli Zhang Diansan Su Jie Jia Peng Miao Tags: Article Source Type: research