A5101617426- Medical Imaging Techniques and Applications
- Advanced X-ray and CT Imaging
- Radiomics and Machine Learning in Medical Imaging
- Advanced MRI Techniques and Applications
- Advanced Radiotherapy Techniques
- Radiation Detection and Scintillator Technologies
- Cardiac Imaging and Diagnostics
- Chemical Synthesis and Reactions
- Advanced Image Processing Techniques
- Complex Network Analysis Techniques
- Chemical Synthesis and Analysis
- Image and Signal Denoising Methods
- Robotics and Sensor-Based Localization
- Semantic Web and Ontologies
- Potato Plant Research
- Bioinformatics and Genomic Networks
- Peer-to-Peer Network Technologies
- Offshore Engineering and Technologies
- Advanced MIMO Systems Optimization
- Underground infrastructure and sustainability
- Advanced Neuroimaging Techniques and Applications
- Power Line Communications and Noise
- Public-Private Partnership Projects
- E-commerce and Technology Innovations
- Domain Adaptation and Few-Shot Learning
Beijing Forestry University
2025
Tsinghua University
2012-2024
Jinzhong University
2024
Queen's University
2023
Michigan State University
2021-2023
Yale University
2016-2022
Shanghai East Hospital
2022
Yale Cancer Center
2021
Central South University
2015
University of Maryland, College Park
2015
Diffusion models, as a novel generative paradigm, have achieved remarkable success in various image generation tasks such inpainting, image-to-text translation, and video generation. Graph is crucial computational task on graphs with numerous real-world applications. It aims to learn the distribution of given then generate new graphs. Given great diffusion models generation, increasing efforts been made leverage these techniques advance graph recent years. In this paper, we first provide...
This paper identifies 20 critical success factors (CSFs) of innovation in China’s construction projects through literature review, a case study and expert interviews. Integrated Structural Modeling (ISM) MICMAC (Impact Matrix Cross-reference Multiplication Applied to Classification) analysis were used hierarchically structure CSFs as well analyze their inter-relationships. The dependence driver power each factor also analyzed. By doing this, this presents structural clarity establishes...
In recent years, the increasingly significant impacts of climate change and human activities on environment have led to more frequent occurrences extreme events such as forest fires. The recurrent wildfires pose severe threats ecological environments life safety. Consequently, fire prediction has become a current research hotspot, where accurate forecasting technologies are crucial for reducing economic losses, improving management efficiency, ensuring personnel safety property security. To...
A general and efficient procedure for the preparation of 2,6-disubstituted piperidines bearing one alkene- or alkyne-containing substituent was developed by using non-racemic Betti base as a chiral auxiliary. Many benzylamines are excellent auxiliaries, but they were rarely used this purpose because inefficient removal N-benzyl auxiliary residue under non-hydrogenative conditions. We found that N,N-disubstituted derivative has typical Mannich structure o-naphthol. When it carried out...
Objectives. To evaluate the clinical performance of deep learning-enhanced ultrafast single photon emission computed tomography/computed tomography (SPECT/CT) bone scans in patients with suspected malignancy.Approach. In this prospective study, 102 potential malignancy were enrolled and underwent a 20 min SPECT/CT 3 SPECT scan. A learning model was applied to generate algorithm-enhanced images (3 DL SPECT). The reference modality Two reviewers independently evaluated general image quality,...
Positron emission tomography (PET) imaging with various tracers is increasingly used in Alzheimer's disease (AD) studies. However, access to PET scans using new or less-available sophisticated synthesis and short half-life isotopes may be very limited. Therefore, it of great significance interest AD research assess the feasibility generating synthetic images from image another common tracer, particular
The use of peer-to-peer (P2P) applications is growing dramatically, which results in several serious problems such as the network congestion and traffic hindrance. In this paper, a method proposed to identify P2P based on machine learning. novelty that it utilizes only size packets exchanged between IPs within seconds. By investigating ratio upload download volume applications, characteristic library constructed. Then unknown can be recognized online using library. distinguished features lie...
Partial volume correction (PVC) methods typically improve quantification at the expense of increased image noise and reduced reproducibility. In this study, authors developed a novel voxel-based PVC method that incorporates anatomical knowledge to while suppressing for cardiac SPECT/CT imaging.In proposed method, SPECT images were first reconstructed using anatomical-based maximum posteriori (AMAP) with Bowsher's prior penalize preserving boundaries. A sequential voxel-by-voxel approach...
The image quality in clinical PET scan can be severely degraded due to high noise levels extremely obese patients. Our work aimed reduce the images of subjects level lean subject images, ensure consistent imaging quality. was measured by normalized standard deviation (NSTD) derived from a liver region interest. A deep learning-based reduction method with fully 3D patch-based U-Net used. Two U-Nets, U-Nets and B, were trained on datasets 40% 10% count 100 subjects, respectively. 10 denoised...
In this study, the feasibility for simultaneous PET and SPECT dual-tracer small animal imaging is investigated. A custom-made PET/SPECT system was modeled in simulation study. system, performed with a stationary LYSO detector ring, of Tc-99m conducted same detectors ring-shape multi-pinhole collimator inserted into detector. The projection data were acquired 350–650 keV energy window corrected attenuation effect. 135–145 by axial translation object only to obtain sufficient angular sampling...
In this study we investigate a specific animal SPECT imaging system with clinical detector and multipinhole collimator insert. High accuracy geometrical calibration is crucial technique in terms of achieving the high resolution. The steps include: 1) modeled projection equation; 2) centroids point source are calculated from acquired experimental data; 3)The parameters determined by minimizing nonlinear least square cost function. With technique, Experimental studies shows best achievable...
Ultra-high resolution computed tomography (UHRCT) has shown great potential for the detection of pulmonary diseases. However, UHRCT scanning generally induces increases in time and radiation exposure. Super is a gradually prosperous application CT imaging despite higher dose. Recent works have proved that convolution neural network especially generative adversarial (GAN) based model could generate high-resolution using phantom images or simulated low data without extra Research used clinical...
High-resolution dedicated cardiac SPECT systems with CZT detectors have a great potential to provide 3D molecular breast imaging of sub-cm tumors. In this study, we investigated the feasibility using system (GE Discovery 530c/570c) by simulating different lesion sizes, positions, and contrasts. Noise-free NCAT phantom data <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">99m</sup> Tc-tetrofosmin were simulated. The lesions diameter was 5 mm, 8 mm...
A novel method for the preparation of 1-substituted 2,2-dimethoxyethylamine hydrochlorides was developed. The includes three highly efficient steps: (1) direct use aqueous (MeO)2CHCHO N,O-acetal by condensation with Betti base without acidic catalyst; (2) regioselective alkylations Grignard reagents; and (3) Pd/C catalytic hydrogenolyses benzylamines in presence ClCH2CHCl2 to directly give target products as crystalline amine hydrochlorides. reported is extremely convenient wide substrate scopes.
Purpose: We have developed a bone-dedicated collimator with higher sensitivity but slightly degraded resolution on single-photon emission computed tomography (SPECT) for planar bone scintigraphy, compared conventional low-energy high-resolution collimator. In this work, we investigated the feasibility of using blind deconvolution algorithm to improve images scintigraphy. Materials and Methods: Monte Carlo simulation was performed NCAT phantom modeling scintigraphy clinical dual-head SPECT...
The PETRA technique had high sensitivity for the detection of subsolid pulmonary nodules and can accurately assess their diameter morphologic characteristics.