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68 results for “measurement repeatability”
FIGURE A2 in Testing the impact of two key scan parameters on the quality and repeatability of measurements from CT scan data
FIGURE A2. Box and whisker plots of impact of the number of x-ray radiographs averaged per view on the signal-to-noise ratio of (1) the background, and (2) the shell material. The background SNR increases with increased number of averages because this random noise is averaged out as more x-ray radiographs are collected. The material SNR decreases with increasing number of x-ray radiographs which suggest the data are noisy and the noise is not random. Data are available in Appendix 4.
FIGURE A1.1 in Testing the impact of two key scan parameters on the quality and repeatability of measurements from CT scan data
FIGURE A1.1. Variation in total shell volume with exposure time when different surface determination calculation methods are used. Three scans were interpreted for this graph, one from each exposure time.
FIGURE 3. A in Testing the impact of two key scan parameters on the quality and repeatability of measurements from CT scan data
FIGURE 3. A schematic diagram of CT data (A) and slices of CT data collected as part of the scan parameter experiment (B-E). The presented data are sections through the central whorl of a shell of the pteropod Limacina retroversa. The green line in part 1 represents the boundaries of the shell material. The yellow box represents the same region on each scan. The white material is shell, the dark grey material is organic matter, and the black material is air. The difference among the three materials is clearer at the longer scan times (D and E) than the shorter scan times (B and C), making it easier to separate digitally and quantify the different materials.
Repeated Neurocognitive Measurements in Depressed Patients
ClinicalTrials.gov study NCT04916548. IPD Sharing: NO. Countries: 1. Publications: 0.
Measurement Repeatability in Contemporary Aberrometry
ClinicalTrials.gov study NCT02687022. IPD Sharing: YES. Countries: 0. Publications: 4.
Repeated Measures Trial of Temporary Automated Manual Ventilation Versus Noninvasive Oxygenation or Conventional Vent
ClinicalTrials.gov study NCT04369274. IPD Sharing: NO. Countries: 0. Publications: 1.
Data from: To change or not to change experimenters: caveats for repeated behavioural and physiological measures in Montagu’s Harrier
Open the record for dataset details and reuse information.
Data from: How integrated are behavioural and endocrine stress response traits? A repeated measures approach to testing the stress coping style model
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Data from: Estimation of individual growth trajectories when repeated measures are missing
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Data from: Repeatable aversion across threat types is linked with life history traits but is dependent on how aversion is measured
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Repeated behavioral testing and the use of summary measures reveal trait anxiety in preclinical rodent models
GEO Series GSE240493. Rattus norvegicus. 27 samples. Type: Expression profiling by high throughput sequencing.
Data from: Intra- and intersession repeatability of an optical quality and intraocular scattering measurement system in children
Purpose: To evaluate intra- and intersession repeatability of objective optical quality and intraocular scattering measurements with a double-pass system in children. Methods: Forty-two eyes of 42 children were included in the study. An optical quality analysis system (OQAS) was used to measure optical quality parameters, including modulation transfer function cutoff frequency (MTFcutoff), Strehl ratio (SR), OQAS values (OV) at 3 different contrasts and objective scatter index (OSI). Three measurement sessions with 10-min intervals were operated by the same technician, and in each session four consecutive measurements were obtained. Results: Mean values for MTFcutoff, SR and OSI were 46.85 ± 7.45cpd, 0.27 ± 0.06 and 0.34 ± 0.22 respectively. 1) The intraclass correlation coefficients were ranged from 0.89 to 0.97 and coefficients of variation from 0.06 to 0.16 for all the parameters in the first session; the relative repeatability were 11.1% (MTFcutoff), 22.5% (SR), 10.9% (OV100%), 16.6% (OV2%), 22.4% (OV9%) and 56.3% (OSI). Similar results were found in the second and third sessions. 2) Bland-Altman analysis showed that narrow 95% confidence intervals (compared between the first and second sessions) ranged from -5.42 to 5.28 (MTFcutoff), -0.05 to 0.07 (SR), -0.18 to 0.18 (OV100%), -0.26 to 0.29 (OV20%), -0.33 to 0.39 (OV9%) and -0.11 to 0.09 (OSI); the comparison between any two of the three sessions showed similar results. Conclusion: Measurements of optical quality and intraocular scattering in children by the double-pass system showed good intra- and intersession repeatability. Retinal image quality is high and intraocular scattering is low in children.
Repeatability and Reproducibility of Cirrus HD-OCT Measurements of Illumination Areas Under the Retinal Pigment Epithelium
ClinicalTrials.gov study NCT01890187. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Assessing Repeatability of NeuroCatch Platform™ Measurements: An Initial Assessment
ClinicalTrials.gov study NCT03421405. IPD Sharing: UNDECIDED. Countries: 1. Publications: 0.
Outcome Measures for Lower Limb Amputees - A Repeatability Study
ClinicalTrials.gov study NCT01953939. IPD Sharing: Not stated. Countries: 1. Publications: 0.
A Study on Accuracy Improvement of Repeated Measure Uroflowmetry- Electromyography
ClinicalTrials.gov study NCT03399877. IPD Sharing: NO. Countries: 1. Publications: 0.
Repeat PET/CT Imaging of Patients With Amyloid 124I-AT-01 to Measure Changes in Organ-specific Amyloid Load
ClinicalTrials.gov study NCT05968846. IPD Sharing: NO. Countries: 1. Publications: 0.
Comparison of Repeatability Between SS and SD-OCT for Measuring Retinal Thickness in Various Retinal Diseases
ClinicalTrials.gov study NCT03438903. IPD Sharing: Not stated. Countries: 1. Publications: 0.
The Value of Repeated BIOMarker Measurements During an SBT to Predict EXtubation Failure in ICU Patients
ClinicalTrials.gov study NCT05637099. IPD Sharing: NO. Countries: 1. Publications: 0.
Repeated Neurocognitive Measurements in Depressed Patients
ClinicalTrials.gov study NCT05991232. IPD Sharing: NO. Countries: 0. 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.