Results 41 to 50 of about 533,442 (291)

Are Movement Artifacts in Magnetic Resonance Imaging a Real Problem?—A Narrative Review

Frontiers in Neurology, 2017
Movement artifacts compromise image quality and may interfere with interpretation, especially in magnetic resonance imaging (MRI) applications with low signal-to-noise ratio such as functional MRI or diffusion tensor imaging, and when imaging small ...
Inger Havsteen, Anders Ohlhues, Kristoffer H. Madsen, Janus Damm Nybing, Hanne Christensen, Anders Christensen   +5 more
doaj   +1 more source

Image quality in double- and triple-intensity ghost imaging with classical partially polarized light

, 2012
Classical ghost imaging is a correlation-imaging technique in which the image of the object is found through intensity correlations of light. We analyze three different quality parameters, namely the visibility, the signal-to-noise ratio (SNR), and the ...
Agafonov, Ari T. Friberg, Bennink, Brida, Bromberg, Cai, Cao, Cao, Chan, Chan, Chan, Cheng, Erkmen, Ferri, Ferri, Gatti, Gatti, Gatti, Henri Kellock, Kellock, Li, Li, Liu, Pittman, Setälä, Setälä, Shapiro, Shirai, Shirai, Shirai, Shirai, Strekalov, Tero Setälä, Tomohiro Shirai, Tong, Torres-Company, Valencia, Zhang   +37 more
core   +1 more source

Adaptaquin is selectively toxic to glioma stem cells through disruption of iron and cholesterol metabolism

Molecular Oncology, EarlyView.
Adaptaquin selectively kills glioma stem cells while sparing differentiated brain cells. Transcriptomic and proteomic analyses show Adaptaquin disrupts iron and cholesterol homeostasis, with iron chelation amplifying cytotoxicity via cholesterol depletion, mitochondrial dysfunction, and elevated reactive oxygen species.
Adrien M. Vaquié, Davod R. Shah, Eliane E. S. Brechbühl, Michael McNicholas, Zhaoyang Xu, John H. Stockley, Laura Morcom, Diana Gold Diaz, Gemma C. Girdler, Rachel V. Seear, Gabriel Balmus, Rajiv R. Ratan, Harry Bulstrode, James A. Nathan, Manav Pathania, Kevin M. Brindle, David H. Rowitch   +16 more
wiley   +1 more source

Systematic analysis of SNR in bipartite Ghost Imaging with classical and quantum light

, 2011
We present a complete and exhaustive theory of signal-to-noise-ratio in bipartite ghost imaging with classical (thermal) and quantum (twin beams) light.
A. Belinskii, E. D. Lopaeva, G. A. Fornaro, G. Brida, I. Ruo Berchera, I. Ruo Berchera, L. Lugiato, M. Genovese, M. I. Kolobov, M. V. Chekhova, O. Glöckl   +10 more
core   +1 more source

Crucial parameters for precise copy number variation detection in formalin‐fixed paraffin‐embedded solid cancer samples

Molecular Oncology, EarlyView.
This study shows that copy number variations (CNVs) can be reliably detected in formalin‐fixed paraffin‐embedded (FFPE) solid cancer samples using ultra‐low‐pass whole‐genome sequencing, provided that key (pre)‐analytical parameters are optimized.
Hanne Goris, Vasiliki Siozopoulou, Léon C van Kempen, Anne Sieben, Ella Roelant, Stig Hellemans, Elyne Backx, Laure Sorber, Koen De Winne, Senada Koljenović, Karen Zwaenepoel   +10 more
wiley   +1 more source

Diffractive optics approach towards subwavelength pixels

, 2018
Pixel size in cameras and other refractive imaging devices is typically limited by the free-space diffraction. However, a vast majority of semiconductor-based detectors are based on materials with substantially high refractive index.
Fan, Bo, Inampudi, Sandeep, Podolskiy, Viktor A.   +2 more
core   +1 more source

Diabetes‐induced vascular calcification is associated with low pyrophosphate and its oral supplementation prevents calcification in diabetic mice

FEBS Open Bio, EarlyView.
Induction of diabetes in three different mouse strains uniformly resulted in an increase in TNAP activity and a reduction in pyrophosphate (PPi) in the circulation. Inhibition of TNAP restored plasma PPi. Diabetes‐induced calcification in the media layer of the aorta was detected only in the Abcc6−/− strain, which is predisposed to ectopic ...
Krisztina Fülöp, Eszter Kozák, Natália Tőkési, Lilian Kocsis, Anikó Kelemen, Zsuzsanna Geszti, Adriána Kutás, Mariann Harangi, Ágnes Diószegi, Zsolt Rapi, József Balla, Olivier Le Saux, András Váradi, Viola Pomozi   +13 more
wiley   +1 more source

Diffusion tensor MR microscopy of tissues with low diffusional anisotropy

Radiology and Oncology, 2016
Diffusion tensor imaging exploits preferential diffusional motion of water molecules residing within tissue compartments for assessment of tissue structural anisotropy.
Bajd Franci, Mattea Carlos, Stapf Siegfried, Sersa Igor   +3 more
doaj   +1 more source

Signal-to-Noise Ratio Comparison of Several Filters against Phantom Image

Journal of Healthcare Engineering, 2022
Image denoising methods are important in order to diminish various kinds of noises, which are presented either capturing the image or distorted during image transmission. Signal-to-noise ratio (SNR) is one of the main barriers which avoids the theoretical observations to be accomplished in practice.
Muhammad Hameed Siddiqi, Yousef Alhwaiti
openaire   +2 more sources

SNR enhancement through phase dependent signal reconstruction algorithms for phase separated interferometric signals [PDF]

, 2007
We report several signal reconstruction algorithms for processing phase separated homodyne interferometric signals. Methods that take advantage of the phase of the signal are experimentally shown to achieve a signal-to-noise ratio (SNR) improvement of up
McDowell, Emily J., Sarunic, Marinko V., Yang, Changhuei, Yaqoob, Zahid   +3 more
core   +1 more source