Results 71 to 80 of about 1,054,818 (327)
Excess noise characteristics of Al0.8Ga0.2As avalanche photodiodes [PDF]
, 2002 The avalanche noise characteristics of Al0.8Ga0.2 As have been measured in a range of p-i-n and n-i-p diodes with i-region widths ω varying from 1.02 to 0.02 μm.
David, J.P.R. +5 more
core +1 more source
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 +10 more
wiley +1 more source
A Dual-Transducer Approach for High-Resolution and High-Precision Shear Wave Elasticity Imaging
SensorsShear wave elasticity imaging, an ultrasound-based method for imaging tissue elasticity, has been widely accepted in both preclinical studies and clinical practices for diagnosing various diseases.
Jingfei Liu, Stanislav Y. Emelianov
doaj +1 more source
Application of CCTA under 80 kV tube voltage based on deep learning image reconstruction algorithm [PDF]
Xin yixueObjective To explore the application value of 80 kV deep learning image reconstruction （DLIR） algorithm in coronary CT angiography （CCTA）. Methods Sixty patients who underwent CCTA were divided into two groups based on the scanning protocols： 100 kV ...
XIANG Qing, CAO Jian, LUO Tao, ZHU Xuan, QIN Jie, GUO Yahao, LI Chao
doaj +1 more source
Accuracy of Contrast-to-noise Ratio Measurement for Magnetic Resonance Clinical Images
Japanese Journal of Radiological Technology, 2004 The contrast-to-noise ratio (CNR) is often used to evaluate magnetic resonance images, because it has two components, contrast and SNR, and indicates the detectability of clinical lesions. Two methods (using a phantom and using clinical images) are employed to measure CNR. In addition, there are some methods of measurement that use clinical images.
Akio, Ogura +3 more
openaire +3 more sources
Molecular Oncology, EarlyView.To integrate multiple transcriptomics data with severe batch effects for identifying MB subtypes, we developed a novel and accurate computational method named RaMBat, which leveraged subtype‐specific gene expression ranking information instead of absolute gene expression levels to address batch effects of diverse data sources.
Mengtao Sun, Jieqiong Wang, Shibiao Wan
wiley +1 more source
Registration of Contrast-Enhanced Ultrasound Sequences [PDF]
, 2015 The registration of contrast-enhanced ultrasound (CEUS) image sequences is necessary for correct perfusion analysis. Methods developed for CEUS images have to overcome the low signal to noise ratio, speckle noise and pixel intensity changes given by the ...
Šikner, T.
core
FEBS Open Bio, EarlyView.Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley +1 more source
Influence of Signal to Noise Ratio on the Pharmacokinetic Analysis in DCE-MRI Studies
Frontiers in Biomedical Technologies, 2019 Introduction: Recruiting the pharmacokinetic parameters estimated from noninvasive methods such as Dynamic Contrast Enhanced MRI (DCE-MRI) to evaluate or plan treatment procedure is widely interested in clinical practices.
Azimeh NV Dehkordi, Saeideh Koohestani
doaj +1 more source
BMC Medical Imaging, 2023 Objective This study aimed to assess the feasibility of software-aided selection of monoenergetic level for acute necrotising pancreatitis (ANP) depiction compared to other automatic image series generated using dual-energy computed tomography (CT ...
Yuan Yuan +9 more
doaj +1 more source