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206 results for “blood vessels”
2d U-net models trained to segment human placental maternal/fetal blood volumes and blood vessels from syncrotron micro-CT data along with a sample data volume.
<p>This dataset contains a 512 x 512 x 512 pixel volume taken from an imaging dataset of human placental tissue collected at Diamond Light Source Manchester Imaging Branchline, I13-2 on visits MG23941 and MG22562 using in-line high-resolution synchrotron-sourced phase contrast micro-computed X-ray tomography. This data is saved in HDF5 format with a uint8 datatype. Alongside this are two 2d binary U-net models that have been trained to segment this data. One model segments the data into regions of maternal/fetal blood volume, the other segments the blood vessels. Both models were trained using the fastai python package, which utilises the pytorch library. These models were used to segment the data in our paper "A massively multi-scale approach to characterising tissue architecture by synchrotron micro-CT applied to the human placenta" which can be found at <a href="https://www.biorxiv.org/content/10.1101/2020.12.07.411462v1">https://www.biorxiv.org/content/10.1101/2020.12.07.411462v1</a>. The code used for training the U-net models and for predicting the segmentation of the data volume can be found at <a href="https://github.com/DiamondLightSource/placental-segmentation-2dunet">https://github.com/DiamondLightSource/placental-segmentation-2dunet</a> and is published at <a href="https://doi.org/10.5281/zenodo.4252562">https://doi.org/10.5281/zenodo.4252562</a> </p>
Blood Vessels Dataset obtained from Retina Images of Healthy and Diabetic Retinopathy Individual
<p>This dataset contains blood vessels image files extracted from publicly available fundus retina images</p>
Validation data set for automatic blood vessel segmentation in colorectal cancer histology (IHC)
<p><strong>Content</strong></p> <p>This data set contains 100 histological image patches of 1000 * 1000 px size. The samples were immunostained for CD34 (3,3'-Diaminobenzidine, DAB [brown]) with hematoxylin (blue) counterstain.</p> <p>Furthermore, the data set contains a table of blood vessel counts in each image by three blinded observers as well as an automatic count with a method based on the following paper:</p> <p>Kather, Jakob Nikolas et al. "Continuous Representation Of Tumor Microvessel Density And Detection Of Angiogenic Hotspots In Histological Whole-Slide Images". <em>Oncotarget</em> 6.22 (2015): 19163-19176. http://dx.doi.org/10.18632/oncotarget.4383</p> <p><strong>Image format</strong></p> <p>All images are RGB, 0.50 µm per pixel, digitized with an Aperio ScanScope (Aperio/Leica biosystems), magnification 20x. Histological samples are fully anonymized images of formalin-fixed paraffin-embedded human colorectal adenocarcinomas (primary tumors and liver metastases) from our pathology archive (Institute of Pathology, University Medical Center Mannheim, Heidelberg University, Mannheim, Germany).</p> <p><strong>Ethics statement</strong></p> <p>All experiments were approved by the institutional ethics board (medical ethics board II, University Medical Center Mannheim, Heidelberg University, Germany; approval 2015-868R-MA). The institutional ethics board waived the need for informed consent for this retrospective analysis of anonymized samples. All experiments were carried out in accordance with the Declaration of Helsinki.</p> <p><strong>Contact</strong></p> <p>For questions, please contact:<br> Dr. Jakob Nikolas Kather<br> http://orcid.org/0000-0002-3730-5348<br> ResearcherID: D-4279-2015</p>
◂Fig. 5 Gametogenesis in male and female Veneriserva pygoclava. A–D Semi-thin histological sections of female Veneriserva pygoclava, stained with toluidine blue. A Cross-section of a female Veneriserva. B Close-up of large mature oocytes without discernible nurse cells. C Developing oocytes attached to mesenteries (mes), and oogonia proliferating from the ventral side of the dorsal blood vessel (bv). D Details of vitellogenic oocytes and nurse cells. Arrowheads indicate brownstained yolk platelets and yolk bodies. E Live sperm cells captured in a light micrograph. F–G Cross-sections of male Veneriserva. Note the absence of a gut in the cross-sections. Abbreviations—ac acicula, acr acrosome, bv blood vessel, coe coelomic cavity, mes mesentery, nc nurse cell, nn nurse cell nucleus, nu sperm cell nucleus, Oo oocyte, on oocyte nucleus, sp spermatogonia, vnc ventral nerve cord in Hardly Venus's servant-morphological adaptations of Veneriserva to an endoparasitic lifestyle and its phylogenetic position within Dorvilleidae (Annelida)
◂Fig. 5 Gametogenesis in male and female Veneriserva pygoclava. A–D Semi-thin histological sections of female Veneriserva pygoclava, stained with toluidine blue. A Cross-section of a female Veneriserva. B Close-up of large mature oocytes without discernible nurse cells. C Developing oocytes attached to mesenteries (mes), and oogonia proliferating from the ventral side of the dorsal blood vessel (bv). D Details of vitellogenic oocytes and nurse cells. Arrowheads indicate brownstained yolk platelets and yolk bodies. E Live sperm cells captured in a light micrograph. F–G Cross-sections of male Veneriserva. Note the absence of a gut in the cross-sections. Abbreviations—ac acicula, acr acrosome, bv blood vessel, coe coelomic cavity, mes mesentery, nc nurse cell, nn nurse cell nucleus, nu sperm cell nucleus, Oo oocyte, on oocyte nucleus, sp spermatogonia, vnc ventral nerve cord
High Resolution Retinal Blood Vessels Datasets of Diabetic Retinopathy Patients
<p>This dataset contains 89 high resolution image files of blood vessels extracted from publicly available retina images available in DIARETDB1</p>
Edoxaban for Prevention of Blood Vessels Being Blocked by Clots (Thrombotic Events) in Children at Risk Because of Cardiac Disease
ClinicalTrials.gov study NCT03395639. IPD Sharing: YES. Countries: 14. Publications: 1.
In-vivo video microscopy of the rupturing process of thin blood vessels in transparent fish during contact with a blunt indenter
<p>To clarify the mechanism of bruise injuries caused by blunt impact, in vivo microscopy was performed. A flat ended indenter made of transparent acrylic was loaded onto the lateral side of the tail region of anesthetized fish. The process of the rupture of thin blood vessels was recorded in two specimens.</p> <p>This data set includes two types of files; (1) mp4 files of the in vivo microscopy; (2) pdf files to explain the mp4 files.</p> <p><span>The mp4 files are the original data of “Fujikawa, T., Yamada, Y. In vivo video microscopy of the rupturing process of thin blood vessels to clarify the mechanism of bruising caused by blunt impact: an animal study. BioMed Eng OnLine 23, 94 (2024). https://doi.org/10.1186/s12938-024-01284-2.”</span></p>
Study the Safety and Effectiveness of Tadalafil on High Blood Pressure in the Blood Vessel Going From the Heart to the Lungs
ClinicalTrials.gov study NCT00549302. IPD Sharing: Not stated. Countries: 10. Publications: 1.
Study to Learn How the Drug Aflibercept Works in in Japanese Patients With Increased Eye Pressure That is Caused by New Blood Vessels Growing in the Eye (Neovascular Glaucoma or NVG). Safety of the Dr
ClinicalTrials.gov study NCT03639675. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Study of the Effects of High Dose Aflibercept Injected Into the Eye of Patients With an Age-related Disorder That Causes Loss of Vision Due to Growth of Abnormal Blood Vessels at the Back of the Eye
ClinicalTrials.gov study NCT04423718. IPD Sharing: NO. Countries: 27. Publications: 4.
Effect of Omega-3 Fatty Acids on Eye Blood Vessels in Type 1 Diabetes
ClinicalTrials.gov study NCT07255326. IPD Sharing: UNDECIDED. Countries: 1. Publications: 2.
Assessment of Blood Vessel Density in Kaposi's Sarcoma Lesions
ClinicalTrials.gov study NCT00026793. IPD Sharing: NO. Countries: 1. Publications: 3.
Clinical Research Study With Clazosentan to Evaluate Its Effects on Preventing Complications Due to the Narrowing of the Blood Vessels (Vasospasm) in the Brain, Caused by Bleeding Onto the Surface of
ClinicalTrials.gov study NCT03585270. IPD Sharing: NO. Countries: 15. Publications: 2.
Study to Assess the Changes in Blood Clotting Factors and Blood Vessel Wall Function in Obstructive Sleep Apnea
ClinicalTrials.gov study NCT00936481. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Drug Therapy Induced Weight Loss to Improve Blood Vessel Function in Subjects With Obesity
ClinicalTrials.gov study NCT01351753. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Evaluating the Effectiveness of Pentoxifylline at Improving Blood Vessel Function in HIV-infected People Not Receiving Antiretroviral Medications
ClinicalTrials.gov study NCT00796822. IPD Sharing: Not stated. Countries: 1. Publications: 1.
A Study to Test Whether Two Different Doses of Avenciguat Help People With Liver Cirrhosis and High Blood Pressure in the Portal Vein (Main Vessel Going to the Liver)
ClinicalTrials.gov study NCT05161481. IPD Sharing: YES. Countries: 22. Publications: 1.
The Correlation Between CT and MRCP Before Living Liver Donation for Liver Blood Vessel Assessment: an Ambidirectional Cohort Study
ClinicalTrials.gov study NCT06875232. IPD Sharing: YES. Countries: 1. Publications: 5.
Safety and Efficacy Study Using ABT-335 (Investigational Drug) in Combination With Atorvastatin, to Study the Effects on Thickening of the Blood Vessel Wall in Patients With Abnormal Lipid (Fat) Level
ClinicalTrials.gov study NCT00616772. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Effect of Molsidomine on the Endothelial (Internal Layer of Blood Vessels) Dysfunction in Patients With Angina Pectoris
ClinicalTrials.gov study NCT01363661. IPD Sharing: Not stated. Countries: 1. Publications: 2.
ScienceDex guides
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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)
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.