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181
High Performance 3D PET Reconstruction Using Spherical Basis Functions on a Polar Grid
Published 2012-01-01“…Traditionally, the image space is modelled as a combination of cubic voxels as a matter of simplicity. After reconstruction, images are routinely filtered to reduce statistical noise at the cost of spatial resolution degradation. …”
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182
Multi-scale sparse convolution and point convolution adaptive fusion point cloud semantic segmentation method
Published 2025-02-01“…It utilizes a cross self-attention mechanism to adapt to the unique propagation features of point features and voxels, enhancing feature fusion performance. Experimental comparisons and ablation studies conducted on the SemanticKITTI and nuScenes datasets validate the generality and effectiveness of the proposed approach. …”
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183
An Axial-Oriented Dual-Layer Indexing Structure for Tunnel Point Clouds
Published 2025-01-01“…Conventional structures (e.g., voxels, octrees) struggle with long strip-like uneven spatial distribution, resulting in imbalanced trees with numerous empty nodes, which are incompatible with axis-aligned operations. …”
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184
An Adaptive View Selection Algorithm for Large-scale Cone-Beam CT Reconstruction
Published 2025-02-01“…The first stage uses a low-resolution version of the voxelized CAD model to obtain edge information and combines it with view diversity information for the optimization in the initial iterations, while the second stage relies on a single low-resolution reconstruction based on measurements from the first stage to gather edge and view diversity information during the later iterations. …”
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185
Coregistration of Ultrasonography and Magnetic Resonance Imaging with a Preliminary Investigation of the Spatial Colocalization of Vascular Endothelial Growth Factor Receptor 2 Exp...
Published 2009-07-01“…Average registration root mean square (RMS) error was 0.36 ± 0.11 mm, less than approximately two voxels. Segmented volumes were compared between investigators to minimize interobserver variability; the average RMS error was 0.23 ± 0.09 mm. …”
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186
A Perfusion MRI Study of Emotional Valence and Arousal in Parkinson’s Disease
Published 2011-01-01“…A random-effects SPM analysis, corrected for multiple comparisons, identified significant clusters of contiguous voxels in which rCBF varied with valence or arousal. …”
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187
Gulliver – A new kind of industrial CT
Published 2025-02-01“…But also, the processing of the resulting huge data of approx. 10,000 × 10,000 × 2,000 voxels generated in the system represents a particular challenge for the image processing and evaluation to be carried out following the measurement. …”
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188
A Preliminary Investigation into the Neural Correlates of Knee Loading during a Change of Direction Task in Individuals after Anterior Cruciate Ligament Reconstruction
Published 2023-02-01“…Involved limb pKEM during the SV condition was positively correlated with BOLD signal in the contralateral precuneus and superior parietal lobe (Voxels: 53; p = .017; z-stat max: 6.47; MNI peak: 6, -50, 66)…”
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189
Fluorescence molecular imaging-guided photodynamic therapy for early breast cancer in the prone position: Feasibility evaluation with Monte Carlo simulations
Published 2025-04-01“…Monte Carlo modeling in voxelized media was performed. Fluorescence propagation from the tumor and the amount of singlet oxygen produced within the tumor were estimated from the calculated fluence. …”
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190
Association Between Lung Parenchymal Attenuation in Computed Tomography and Airflow Limitation in Adults with Cystic Fibrosis
Published 2025-01-01“…The patients with airflow limitations showed a higher bulla index and a percentage of lung voxels in the range of emphysema. The FEV1 and the FEV1/FVC correlated with the percentage of the lungs at a high attenuation value (HAV), the range of emphysema, and the bulla index at inspiration, as well as the mean lung density at expiration and the inspiratory–expiratory variation of the mean lung density (MLDi-e). …”
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191
Global Three‐Dimensional Ionospheric Tomography by Combination of Ground‐Based and Space‐Borne GNSS Data
Published 2023-04-01“…In comparison with GNSS + LEO (EMART_GL) solutions, the proportion of crossed voxels for GNSS‐only (EMART_G) solutions can rise by up to 12.54%, from 56.83% to 69.37%. …”
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192
Cerebellar-cerebral circuits functional connectivity in patients with cognitive impairment after basal ganglia stroke: a pilot study
Published 2025-01-01“…Four cerebellar seed points were selected, and the FC of each seed point with other voxels in the whole brain was calculated. FC and cognitive performance were compared between the two groups, and their correlations were analyzed.ResultsStroke patients exhibited increased FC between the bilateral cerebellum IX and BG (particularly the head of the caudate nucleus), which was positively correlated with episodic memory, visuospatial ability, and attention. …”
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193
Relating proton LETd to biological response of parotid and submandibular glands using PSMA-PET in clinical patients
Published 2025-05-01“…Parotid and submandibular gland delineations were adjusted to include voxels which had an uptake of ≥ 5 g/ml in the baseline PSMA-PET scan. …”
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194
fMRI Study on the Functional Connectivity of Nucleus Accumbens in Patients with Knee Osteoarthritis
Published 2020-02-01“…Our study used the AAL template NAc of the Montreal Neuroscience Institute (MNI) as the region of interest to analyze the differences in the functional connectivity between the NAc and the whole brain voxels in the two groups of subjects and its correlation with the KOOS.Results:The general data (age, gender) of the KOA group were matched with the healthy control group, and the BPI score of the healthy control group was 0. …”
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195
Ionospheric Response to the 24–27 February 2023 Solar Flare and Geomagnetic Storms Over the European Region Using a Machine Learning–Based Tomographic Technique
Published 2025-01-01“…Computerized ionospheric tomography based on machine learning (CIT‐ML) was used to predict the IEDs of unobserved voxels. The IEDs were examined using observation data from the Swarm satellite. …”
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196
Longitudinal assessment of diffusion-weighted imaging during magnetic resonance-guided radiotherapy in head and neck cancer
Published 2025-01-01“…Absolute and relative temporal changes of mean ADC values, tumor volumes and a high-risk subvolume (HRS) defined by low ADC tumor voxels (600 < ADC < 900 × 10−6 mm2/s) were analyzed. …”
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197
Preoperative prediction of IDH genotypes and prognosis in adult-type diffuse gliomas: intratumor heterogeneity habitat analysis using dynamic contrast-enhanced MRI and diffusion-we...
Published 2025-02-01“…After tumor segmentation, the k-means algorithm clustered Ktrans and ADC image voxels to generate spatial habitats and extract quantitative image features. …”
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198
Automated Quantification of Retinopathy of Prematurity Stage via Ultrawidefield OCT
Published 2025-03-01“…Each infant had every B-scan in a volume automatically segmented for ANVTV (total number of segmented voxels within the 60° temporal to the optic disc). …”
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