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258 results for “phantom”
MRI Distortion QA Tool Phantom Test Dataset
<p>This data consists of CT and MRI Phantom images captured for the purpose of developing and testing an MRI Distortion QA tool and is released under the Creative Commons Attribution 3.0 Unported License.</p>
Cone-beam Gel phantom data for dynamic X-ray tomography
<p>The gel phantom was constructed to simulate the flow of iodine-based contrast agents in plant stems, whilst being more tolerant to the high radiation dose of X-ray tomography scanning. A thorough explanation of the phantom, its motivation and the measurement setup can be found in <a href="https://arxiv.org/abs/2003.02841">arXiv:2003.02841</a>. Attached is a brief documentation which focuses primarily on the higher dimensional 3D files and the key differences between the two data sets.</p> <p>The primary measurements consist of 17 consecutive time frames, with an initial state of no contrast agent followed by a steady increase thereof, primarily via downward diffusion into the gel body over time. Each time frame consists of 360 projections acquired with a cone-beam micro-CT scanner, resulting in a sequence of 3D cone-beam sinograms. Moreover, the first time frame is provided with higher angular sampling of 720 projections, and an additional 18th time frame with 1600 projections.</p> <p>The data set contains the following MATLAB files:</p> <ul> <li><strong>3dGelPhantomData_b4.mat</strong></li> <li><strong>3dGelPhantomData_b8.mat</strong></li> <li><strong>3dGelPhantomData_b16.mat</strong></li> <li><strong>3dGelPhantomExtraFrames_b4.mat</strong></li> <li><strong>3dGelPhantomExtraFrames_b8.mat</strong></li> <li><strong>3dGelPhantomExtraFrames_b16.mat</strong></li> </ul> <p>And a more detailed documentation: <strong>ConeBeamGelPhantomDocumentation.pdf </strong>(v1.0)</p> <p>The proper use of these files requires the <a href="https://www.astra-toolbox.com/">ASTRA Toolbox</a>, <a href="https://www.cs.ubc.ca/labs/scl/spot/">the Spot Linear-Operator Toolbox</a>, and <a href="https://www.mathworks.com/matlabcentral/fileexchange/74417-heltomo-university-of-helsinki-ct-data-toolbox">the HelTomo Toolbox</a>. In addition the operators and reconstruction algorithms provided by ASTRA for 3D geometry <strong>require CUDA capable graphics card </strong>(GPU) due to large amounts of (parallel) computations. The older <a href="https://doi.org/10.5281/zenodo.3696816">2D data set</a> provides a computationally lighter and more user-friendly starting point for inexperienced users.</p>
Ultrasound Plane Wave Raw Data 75 Angles - Breast Phantom and Calibration Phantom Dataset
<p><strong>Summary</strong></p> <p>This dataset is a collection of raw ultrasound plane wave data from a breast mimicking phantom and a calibration phantom. The breast phantom data contains samples of hyperechoic lesions, hypoechoic lesions and no lesions. Whereas the calibration phantom contains samples to experimentally validate resolution and contrast. This dataset was acquired to do experimental validation of physics based deep learning for image registration, about which a paper is a current work in progress.</p> <p> </p> <p><strong>Description</strong></p> <p><em>Sample information</em></p> <p>One the one hand this dataset contain 220 samples of in-vitro breast phantom ultrasound plane wave data (identified by CIRS073_RUMC). This data consists of three lesion types: hyperechoic lesions, hypoechoic lesions, and no lesions. On the other hand this dataset contains data from a calibration phantom (identified by CIRS040GSE). This data consists of: 5 samples of hypoechoic cysts, 5 samples from wire targets of 100 micrometer, 5 samples with -6dB and -3dB lesions in the field of view, and 5 samples with +3dB and +6dB in the field of view. All recordings were obtained twice: once in a low attenuating area 0.7 dB/cm/mHz, and once in a high attenuating area 0.95 dB/cm/mHz . The calibration phantom used is: Multi-Purpose Multi-Tissue Ultrasound Phantom Model 040GSE (CIRS, Norfolk, USA).</p> <p><em>Acquisition Information</em></p> <p>Data was acquired using a Verasonics Vantage T256 R256 system with an L12-5 50 mm linear array ultrasound transducer operating at a center frequency of 7.8 MHz. Plane wave data has been acquired consisting of 75 steering angles with an angle range of -16 degrees to +16 degrees. Verasonics scripts used for the acquisition are provided along with the data.</p> <p><em>Image Reconstruction</em></p> <p>The <a href="https://github.com/RALSchoop/DeepUS">GitHub repository</a> contains code to subsample any amount of angles from the 75 acquired angles and to do image reconstruction with the f-k migration algorithm on this dataset. This processing code is available in Python.</p> <p><strong>Involved Parties</strong></p> <p>This dataset was produced by the Computational Imaging group at Centrum Wiskunde & Informatica (CI-CWI) in Amsterdam, The Netherlands in collaboration with the Medical Ultrasound Imaging Center in Radboud UMC Nijmegen, The Netherlands.</p> <p><strong>Contact Details</strong></p> <p>r [dot] schoop [at] nki [dot] nl</p>
Prophylactic TBR on Phantom Limb Pain
ClinicalTrials.gov study NCT06956508. IPD Sharing: NO. Countries: 1. Publications: 12.
Graded Motor Imagery in Phantom Limb Pain (GraMI Protocol)
ClinicalTrials.gov study NCT05083611. IPD Sharing: UNDECIDED. Countries: 1. Publications: 6.
Study of Phantom Limb Pain Using Peripheral Nerve and Spinal Cord Stimulation
ClinicalTrials.gov study NCT05650931. IPD Sharing: UNDECIDED. Countries: 1. Publications: 11.
A Study to Test the Effectiveness of Mirror-Box and Mental Visualization Treatments on Phantom Limb Pain
ClinicalTrials.gov study NCT00301444. IPD Sharing: Not stated. Countries: 1. Publications: 12.
Mirror Therapy for Phantom Limb Pain
ClinicalTrials.gov study NCT00623818. IPD Sharing: Not stated. Countries: 1. Publications: 4.
Phantom Motor Execution Via MPR, VR/AR, and SG, as a Treatment of PLP
ClinicalTrials.gov study NCT03112928. IPD Sharing: NO. Countries: 7. Publications: 5.
Myoelectrically Controlled Augmented Reality and Gaming for the Treatment of Phantom Limb Pain
ClinicalTrials.gov study NCT02281539. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Effect of Femoral and Sciatic Nerve Blocks, Combined with General Anesthesia, in Postoperative Pain Levels and Phantom Limb Pain Development in Patients Undergoing Lower Limb Amputation
ClinicalTrials.gov study NCT06693427. IPD Sharing: UNDECIDED. Countries: 1. Publications: 17.
Sensory Retraining for Phantom Limb Pain
ClinicalTrials.gov study NCT04103983. IPD Sharing: NO. Countries: 1. Publications: 1.
Study of Lower-limb Phantom Pain Syndrome Using Peripheral Nerve and Spinal Cord Stimulation
ClinicalTrials.gov study NCT05807607. IPD Sharing: UNDECIDED. Countries: 1. Publications: 12.
Long-term Effects of Transcranial Direct Current Stimulation (tDCS) on Patients With Phantom Limb Pain (PLP)
ClinicalTrials.gov study NCT02051959. IPD Sharing: Not stated. Countries: 1. Publications: 28.
Perioperative Mirror Therapy and Phantom Limb Pain
ClinicalTrials.gov study NCT02383979. IPD Sharing: Not stated. Countries: 1. Publications: 16.
Efficacy and Mechanisms of Virtual Reality Treatment of Phantom Leg Pain.Home-Based Treatment
ClinicalTrials.gov study NCT07044323. IPD Sharing: UNDECIDED. Countries: 1. Publications: 8.
Phantom Exercise for Lower Limb Amputees
ClinicalTrials.gov study NCT04285138. IPD Sharing: NO. Countries: 1. Publications: 20.
Patients With Heart Failure ANd Type 2 Diabetes Treated With Placebo Or Metformin (PHANTOM) Pilot Study
ClinicalTrials.gov study NCT00325910. IPD Sharing: Not stated. Countries: 1. Publications: 2.
PHANTOM-S: The Pre-Hospital Acute Neurological Therapy and Optimization of Medical Care in Stroke Patients - Study
ClinicalTrials.gov study NCT01382862. IPD Sharing: Not stated. Countries: 1. Publications: 5.
Transcranial Magnetic Stimulation for the Treatment of Phantom Pain
ClinicalTrials.gov study NCT00001923. IPD Sharing: Not stated. Countries: 1. Publications: 3.
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)
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DANDI Archive for NWB datasets
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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.