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Dataset results
200 results for “SPECT”
Study Assessing Hybrid SPECT-CT With Labeled Leukocytes for Diagnosis of Vascular Prosthesis Infections
ClinicalTrials.gov study NCT02538133. IPD Sharing: Not stated. Countries: 1. Publications: 0.
SPECT Myocardial Blood Flow Quantification for Diagnosis of Ischemic Heart Disease Determined by Fraction Flow Reserve
ClinicalTrials.gov study NCT06030596. IPD Sharing: NO. Countries: 1. Publications: 0.
DAT SPECT and Procedural Motor Skills in Parkinson's Disease
ClinicalTrials.gov study NCT03076307. IPD Sharing: NO. Countries: 1. Publications: 0.
123 I-FP-CIT SPECT Prescriptions for Parkinsonian Syndromes
ClinicalTrials.gov study NCT05698784. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Gated SPECT Abnormality With J Point Elevation
ClinicalTrials.gov study NCT03472898. IPD Sharing: NO. Countries: 1. Publications: 0.
The Value of Preoperative Sentinel Lymph Node Mapping by Pelvic MR Lymphangiography and SPECT-CT in Cervical Cancer
ClinicalTrials.gov study NCT01777230. IPD Sharing: Not stated. Countries: 1. Publications: 0.
MODIS/Aqua CLD Mask Spect. Results 250m and 1km 5-Min L2 Wide Swath Subset along CloudSat V002 (MAC35S1) at GES DISC
This is the wide-swath MODIS/Aqua subset along CloudSat field of view track. The goal of the wide-swath subset is to select and return MODIS data that are within +-100 km across the CloudSat track. I.e. the resultant MODIS subset swath is sought to be about 200 km cross-track. Geolocations in the original product, however, are subsampled at 5-km, and thus the crosss-track width of the subset geolocations is 41 pixels. The subset Cloud Mask has 201 pixels across-track. However, some of the Cloud Mask information is at bit level, thus allowing storing actually 250-m information in seemingly 1-km pixels. This is achieved by reserving 2 bytes (the last two out of six) of every 1-km pixel as 16 yes/no-cloud bits. Each one of these 16 bits flags a corresponding 250-m tile inside the 1-km pixel. Their state is described in the local attributes to the Cloud_Mask HDF data set, and accordingly must be interprated as 0=YES, 1=NO. Thus the effective cross-track width, for these two bytes only, is 804 tiles of 250-m denomination. Along-track, all MODIS pixels from the original product are preserved. In the standard product, the MODIS level-2 cloud mask product is a global product generated for both daytime & nighttime conditions at 1-km spatial resolution (at nadir) and for daytime at 250-m resolution. The algorithm employs a series of visible and infrared threshold and consistency tests to specify confidence levels that an unobstructed view of the Earth's surface is observed. An indication of shadows affecting the scene is also provided. The 250-m cloud mask flags are based on the visible channel data only. Radiometrically accurate radiances are required, so holes in the cloud mask will appear wherever the input radiances are incomplete or of poor quality. The shortname for this Level-2 MODIS cloud mask product is MYD35_L2 and the principal investigator for this product is MODIS scientist Dr. Paul Menzel (paulm@ssec.wisc.edu). (The shortname for this product is MAC35S1).
Emission Line Astronomy - Coronagraphic Tunable Narrow Band Imaging and Integral Field Spectroscopy. Project
We propose to continue our program of emission line astronomy featuring three areas of emphasis: 1) The distribution and nature of high redshift emission line galaxies, using the Lyman alpha and other rest-frame UV lines; and the study of planetary systems in formation in the first 10 Myrs, with the interplay of circumstellar disks and jets; and spectral differencing of transiting planets. 2) We are extending the capability of our Goddard Fabry-Perot Imager by incorporating a Coronagraphic Integral Field Spectrograph (CIFS), and will continue our observations with the improved instrument. We request support for completing the commissioning of the instrument, and for its maintenance and operation. The CIFS, which has been delivered to the Apache Point Observatory's 3.5-m telescope, consists of a custom microlens array and magnifier section, a grating wheel assembly, and a photon-counting electron-multiplying CCD (EMCCD), within the optical train of the Fabry-Perot. The instrument is switchable between Fabry-Perot and IFS modes. It provides observational support to interpret data from the HST, Spitzer, Chandra, Herschel and soon JWST space observatories with capabilities not available on them, and will be used to develop technology for future NASA flight programs such as WFIRST, and NWO, THEIA, ATLAST and other planet-finding missions. In this period we propose to extend the wavelength coverage of the CIFS, by extending the format of the EMCCD.
MODIS/Aqua Cld Mask Spect. Test Results 5-Min L2 Swath Subset along MLS V002 (MAM35S0) at GES DISC
This is the MODIS/Aqua subset along MLS field of view track. The goal of the subset is to select and return MODIS data that are within +-100 km across the MLS track. I.e. the resultant MODIS subset swath is sought to be about 200 km cross-track. Geolocations in the original product, however, are subsampled at 5-km, and thus the crosss-track width of the subset geolocations is 41 pixels. The subset Cloud Mask has 201 pixels across-track. However, some of the Cloud Mask information is at bit level, thus allowing storing actually 250-m information in seemingly 1-km pixels. This is achieved by reserving 2 bytes (the last two out of six) of every 1-km pixel as 16 yes/no-cloud bits. Each one of these 16 bits flags a corresponding 250-m tile inside the 1-km pixel. Their state is described in the local attributes to the Cloud_Mask HDF data set, and accordingly must be interprated as 0=YES, 1=NO. Thus the effective cross-track width, for these two bytes only, is 804 tiles of 250-m denomination. Along-track, all MODIS pixels from the original product are preserved. In the standard product, the MODIS level-2 cloud mask product is a global product generated for both daytime & nighttime conditions at 1-km spatial resolution (at nadir) and for daytime at 250-m resolution. The algorithm employs a series of visible and infrared threshold and consistency tests to specify confidence levels that an unobstructed view of the Earth's surface is observed. An indication of shadows affecting the scene is also provided. The 250-m cloud mask flags are based on the visible channel data only. Radiometrically accurate radiances are required, so holes in the cloud mask will appear wherever the input radiances are incomplete or of poor quality. The shortname for this Level-2 MODIS cloud mask product is MYD35_L2 and the principal investigator for this product is MODIS scientist Dr. Paul Menzel (paulm@ssec.wisc.edu). (The shortname for this product is MAM35S0).
Exploration of the Transition Region-Corona Interface With the Multi-Order Solar EUV Spectrograph Project
<p> We propose to observe the solar upper transition region and lower corona in Ne VII 46.5 nm with the Multi-Order Solar EUV Spectrograph (MOSES) rocket payload. The solar plasma in this temperature range, about 500,000 K, has not been imaged at rapid cadence since Skylab (Feldman, 1987). The unique observational capabilities of MOSES, demonstrated already in He II 30.4 nm, enable simultaneous imaging and measurement of line widths and doppler shifts over a large (20&rsquo; x 10&rsquo;) field of view, with typical active region exposure times of 10 s. These observations will reveal the 3D dynamics of outflows and reconnection events in active regions, quiet Sun, and coronal holes. The primary objectives of this one-year proposal are (1) instrument calibration, (2) launch of the rocket in summer of 2012, and (3) data analysis, including exploration of new techniques to recover more spectral information from the MOSES data. Prior NASA funding has enabled data analysis and publication of results from the first flight, upgrades to the payload, and increased reliability of our ground support equipment. Procurement of optics to observe the Ne VII 46.5 nm line is in process. With the help of additional funding from Montana Space Grant Consortium, we have also developed an EUV calibration facility optimized for testing the MOSES payload.</p> <p> N/A</p>
MODIS/Aqua CLD Mask Spect. Results 250m and 1km 5-Min L2 Narrow Swath Subset along CloudSat V002 (MAC35S0) at GES DISC
This is the narrow-swath MODIS/Aqua subset along CloudSat field of view track. The goal of the narrow-swath subset is to select and return MODIS data that are within +-5 km across the CloudSat track. I.e. the resultant MODIS subset swath is sought to be about 10 km cross-track. Geolocations in the original product, however, are subsampled at 5-km, and thus the crosss-track width of the subset geolocations is 3 pixels. The subset Cloud Mask has 11 pixels across-track. However, some of the Cloud Mask information is at bit level, thus allowing storing actually 250-m information in seemingly 1-km pixels. This is achieved by reserving 2 bytes (the last two out of six) of every 1-km pixel as 16 yes/no-cloud bits. Each one of these 16 bits flags a corresponding 250-m tile inside the 1-km pixel. Their state is described in the local attributes to the Cloud_Mask HDF data set, and accordingly must be interprated as 0=YES, 1=NO. Thus the effective cross-track width, for these two bytes only, is 44 tiles of 250-m denomination. Along-track, all MODIS pixels from the original product are preserved. In the standard product, the MODIS level-2 cloud mask product is a global product generated for both daytime & nighttime conditions at 1-km spatial resolution (at nadir) and for daytime at 250-m resolution. The algorithm employs a series of visible and infrared threshold and consistency tests to specify confidence levels that an unobstructed view of the Earth's surface is observed. An indication of shadows affecting the scene is also provided. The 250-m cloud mask flags are based on the visible channel data only. Radiometrically accurate radiances are required, so holes in the cloud mask will appear wherever the input radiances are incomplete or of poor quality. The shortname for this Level-2 MODIS cloud mask product is MYD35_L2 and the principal investigator for this product is MODIS scientist Dr. Paul Menzel (paulm@ssec.wisc.edu). (The shortname for this product is MAC35S0).
The Hybrid Combination of CCTA and SPECT and CAG for Evaluation Prognosis of CAD: an Observational Follow-up Study
ClinicalTrials.gov study NCT04554134. IPD Sharing: NO. Countries: 0. Publications: 0.
Imaging of Solid Tumors Using DLL3 SPECT
ClinicalTrials.gov study NCT07052760. IPD Sharing: YES. Countries: 1. Publications: 0.
SPECT Fibroblast Activation Protein Imaging in Patients With Cardiac Disease
ClinicalTrials.gov study NCT06326970. IPD Sharing: NO. Countries: 0. Publications: 0.
Myocardial Flow Reserve and 99mTc-DTPA Cardiac Dynamic SPECT
ClinicalTrials.gov study NCT02844686. IPD Sharing: Not stated. Countries: 0. Publications: 0.
Feasibility and Diagnostic Accuracy of Myocardial SPECT Using Early Imaging Protocol
ClinicalTrials.gov study NCT02136706. IPD Sharing: NO. Countries: 0. Publications: 0.
The Added Value of Quantification of Lung Function in Patients Undergoing Radiotherapy, Using Tc-99m-MAA SPECT-CT
ClinicalTrials.gov study NCT03123679. IPD Sharing: UNDECIDED. Countries: 0. Publications: 0.
Brain SPECT Following Cialis (Tadalafil ) Administration
ClinicalTrials.gov study NCT01374347. IPD Sharing: Not stated. Countries: 0. Publications: 0.
Quantitation of Left Ventricular Ejection Fraction Change From Early Exercise Gated Stress/Rest Tc-99m CZT-SPECT MPI
ClinicalTrials.gov study NCT02863952. IPD Sharing: Not stated. Countries: 0. Publications: 0.
Open Label Study to Access Flurpiridaz F18 in PET MPI Verses SPECT MPI
ClinicalTrials.gov study NCT01681524. IPD Sharing: Not stated. Countries: 0. Publications: 0.
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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
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.