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217
datasets available to search
ShareScore release 0.9.0
Dataset results
217 results for “image contrast”
Efficacy and Safety Study to Evaluate Gadavist (Gadobutrol) as Contrast Agent in Magnetic Resonance Imaging (MRI) of Vascular Diseases in Chinese Patients
ClinicalTrials.gov study NCT00395733. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Dynamic Contrast-Enhanced Magnetic Resonance Imaging (DCE-MRI) to Measure Response to Etanercept in Rheumatoid Arthritis
ClinicalTrials.gov study NCT00361634. IPD Sharing: Not stated. Countries: 2. Publications: 0.
The Discrepancy in Radiologists' Practice of Intravenous Contrast Imaging Studies Among Chronic Kidney Disease Patients
ClinicalTrials.gov study NCT05729126. IPD Sharing: NO. Countries: 1. Publications: 0.
An Efficacy and Safety Study of Sonazoid™ and SonoVue® in Participants With Focal Liver Lesions, Undergoing Pre- and Post-Contrast Ultrasound Imaging
ClinicalTrials.gov study NCT03335566. IPD Sharing: Not stated. Countries: 3. Publications: 0.
Magnetic Resonance Imaging of the Liver in Children 0-2 Months of Age With an Intravenous Injection of Eovist/Primovist Which is a Contrast Agent
ClinicalTrials.gov study NCT02084628. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Data from: Longitudinal characterization of local perfusion of the rat placenta using contrast-enhanced ultrasound imaging
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Data from: Validation of perfusion quantification with 3D gradient echo dynamic contrast-enhanced magnetic resonance imaging using a blood pool contrast agent in skeletal swine muscle
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Data from: Magnetic resonance and ultrasound contrast imaging of polymer-shelled microbubbles loaded with iron oxide nanoparticles
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Data from: Data for evaluation of fast kurtosis imaging, b-value optimization and exploration of diffusion MRI contrast
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Data from: A novel mouse segmentation method based on dynamic contrast enhanced micro-CT images
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Data from: Quantification and optimization of ADF-STEM image contrast for beam sensitive materials
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Reliability of 3D image analysis and influence of contrast medium administration on measurement of Hounsfield unit values of the proximal femur
<p>These datasets consists of three PDF files for intraobserver ICC, interobserver ICC and effect of contrast medium administration.</p>
Data from: Pulmonary nodule detection in patients with a primary malignancy using hybrid PET/MRI: is there value in adding contrast-enhanced MR imaging?
Purpose: To investigate the added value of post-contrast VIBE (volumetric-interpolated breath-hold examination) to PET/MR imaging for pulmonary nodule detection in patients with primary malignancies. Materials and Methods: This retrospective institutional review board–approved study, with waiver of informed consent, included 51 consecutive patients who underwent 18F-fluorodeoxyglucose (FDG) PET/MR followed by PET/CT for cancer staging. In all patients, the thorax was examined with pre-and post-contrast VIBE MR with simultaneous PET acquisition. Two readers blinded to the patients' data independently recorded their level of suspicion for pulmonary nodules based on PET, pre-contrast VIBE, and fused PET/MR images (first session), and reassessed them 4-weeks later after addition of post-contrast VIBE (second session). Jackknife alternative free-response receiver-operating-characteristic (JAFROC) analysis was performed, with PET/CT as the reference standard. Results: A total of 151 pulmonary nodules (44 FDG-avid, 107 non-FDG-avid nodules) were detected on PET/CT, including 62 nodules≥5mm in diameter and 89 nodules<5mm. In the first session, the average nodule detection rate was 53.3% for all nodules, 97.7% for FDG-avid, 35.0% for non-FDG-avid nodules, 87.9% for nodules≥5mm and 29.2% for nodules<5mm. In the second session, the average detection rate was 53.3% for all nodules, 97.7% for FDG-avid, 35.0% for non-FDG-avid nodules, 85.5% for nodules≥5mm and 30.9% for nodules<5mm. The average JAFROC figure-of-merit was 0.837 in the first session and 0.848 in the second session. There were no significant differences in detection performance between sessions (P=0.48). Conclusion: The addition of post-contrast VIBE to hybrid PET/MR imaging provided no additional value in the detection of pulmonary nodules.
Data from: In-vivo imaging of cell migration using contrast enhanced MRI and SVM based post-processing
The migration of cells within a living organism can be observed with magnetic resonance imaging (MRI) in combination with iron oxide nanoparticles as an intracellular contrast agent. This method, however, suffers from low sensitivity and specificty. Here, we developed a quantitative non-invasive in-vivo cell localization method using contrast enhanced multiparametric MRI and support vector machines (SVM) based post-processing. Imaging phantoms consisting of agarose with compartments containing different concentrations of cancer cells labeled with iron oxide nanoparticles were used to train and evaluate the SVM for cell localization. From the magnitude and phase data acquired with a series of -weighted gradient-echo scans at different echo-times, we extracted features that are characteristic for the presence of superparamagnetic nanoparticles, in particular hyper- and hypointensities, relaxation rates, short-range phase perturbations, and perturbation dynamics. High detection quality was achieved by SVM analysis of the multiparametric feature-space. The in-vivo applicability was validated in animal studies. The SVM detected the presence of iron oxide nanoparticles in the imaging phantoms with high specificity and sensitivity with a detection limit of 30 labeled cells per mm3, corresponding to 19 μM of iron oxide. As proof-of-concept, we applied the method to follow the migration of labeled cancer cells injected in rats. The combination of iron oxide labeled cells, multiparametric MRI and a SVM based post processing provides high spatial resolution, specificity, and sensitivity, and is therefore suitable for non-invasive in-vivo cell detection and cell migration studies over prolonged time periods.
Contrasting the Brain Effects of Risperidone and Invega With Functional Magnetic Resonance Imaging (fMRI) and Positron Emission Tomography (PET) Scanning
ClinicalTrials.gov study NCT00937261. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Quantitative Imaging Biomarker Prospective Validation of Dynamic Contrast-enhanced MRI as a Metric of Orodental Injury After Radiotherapy (QI-ProVE-MRI)
ClinicalTrials.gov study NCT06586892. IPD Sharing: Not stated. Countries: 1. Publications: 0.
An Imaging Technology, Contrast-Enhanced Mammography, in Predicting Breast Cancer
ClinicalTrials.gov study NCT04871139. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Contrast-enhanced Magnetic Resonance Imaging With Polysaccharide Superparamagnetic Iron Oxide Nanoparticle
ClinicalTrials.gov study NCT06010537. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Contrast Enhanced SWI for Carotid Plaque Imaging
ClinicalTrials.gov study NCT02749916. IPD Sharing: NO. Countries: 1. Publications: 0.
Contrast-enhanced Ultrasound and Super-resolution Imaging Predict Renal Function Outcome After Nephrectomy
ClinicalTrials.gov study NCT07294859. IPD Sharing: Not stated. Countries: 1. Publications: 0.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.