#tomography — Public Fediverse posts

💁🏻‍♀️ TIL: 🦴🐟 A #fossil from #Australia’s #Cretaceous #Eromanga Sea captured a rare three-tier predator interaction: a #pterosaur eaten by an #ichthyosaur, then both consumed by a giant #pliosaur called '#Kronosaurus queenslandicus.'

Researchers used #neutron #tomography to identify pterosaur jawbones in the ichthyosaur’s fossilized stomach alongside crushing bite marks from the larger #predator.

👉 https://www.sciencealert.com/epic-turducken-fossil-reveals-ancient-sea-monsters-devouring-each-other

#paleontology #australia #prey #science #nature #history #gondwana #marine #reptile

RE: https://social.lansky.name/@hn50/116786253521096960

Garrett, D.C., Xu, J., Oh, D. et al. Whole cross-sectional human ultrasound tomography. Nat. Biomed. Eng (2026). https://doi.org/10.1038/s41551-026-01660-4

Ultrasonography is a vital component of modern clinical care, with handheld probes routinely used for diagnostic imaging and procedural guidance. However, handheld ultrasound imaging is limited by factors such as the partial cross-sectional field of view, operator dependency, contact-induced distortion and lack of transmission contrast. Here we demonstrate a new system that enables whole cross-sectional ultrasound tomography of humans in both reflection and transmission modes. We generate two-dimensional images of the entire in vivo human cross-section in the abdomen and thighs with uniform in-plane resolution using a custom 512-element circular ultrasound receiver array and a rotating transmitter. Sequential scans with our system show strong agreement with clinical magnetic resonance imaging counterparts. To address unmet clinical needs, we explore two key applications. First, we observe abdominal adipose distributions in our images, enabling adipose thickness assessment without ionising radiation or mechanical deformation. Second, we demonstrate an approach for video-rate biopsy needle localization with respect to internal tissue features. These capabilities make whole cross-sectional ultrasound tomography a potential practical tool for clinical needs currently unmet by other modalities.

#health #medicine #ultrasound #tomography #ultrasonography #Midjourney

Live-Mitschnitt von der ersten Test-Tomografie gerade beim #BeamlineLeben

📽️ https://tube.tchncs.de/w/w1VmNCdEiuhy3ooKBM7kdb :blobcatpopcorn:

#Synchrotron #Tomografie #tomography #CT

🐭🎶 New paper by Isko et al, who study #Alston’s singing mouse, a rodent with loud, stereotyped songs.

Using bulk tracing, serial #2P #tomography, & #MAPseq of >76,000 barcoded neurons, they find expanded projections from #orofacial #MotorCortex to #auditory #cortex & #PAG. This suggests that singing / #Vocalization may emerge not from entirely new circuits, but from selective strengthening of existing motor, auditory & vocal-control pathways.

📝 https://doi.org/10.1038/s41586-026-10458-y

#Neuroscience #Evolution

"High-throughput phenomics of global ant biodiversity", Katzke et al. 2026
https://www.nature.com/articles/s41592-026-03005-0

"within the open science initiative ‘Antscan’, we applied high-throughput synchrotron X-ray microtomography to capture phenotypes across a diverse and ecologically dominant insect group: ants. At https://www.antscan.info, we provide 2,193 whole-body three-dimensional ant datasets from 212 genera and 792 species to broadly cover the ant phylogeny with a global scope, also pairing phenomic data with genome sequencing projects."

#ants #Xray #tomography #microCT

Slab Tearing Along A Subducted Oceanic Plate Joint Beneath The Alaska Peninsula
--
https://doi.org/10.1038/s41561-025-01749-6 <-- shared paper
--
#fault #faulting #subduction #slab #oceanic #plate #trench #Alaska #USA #geophysics #seismic #seismology #remotesensing #tomography #model #modeling #seismicity #volcano #vulcanism #Aniakchak #asthenosphere #geology #structuralgeology #mantle

Quantum state tomography:
#unknown #state #tomography #quantumphysics #innovation #research #science
⚛️

https://phys.org/news/2025-12-quantifying-unknown-quantum-states-explores.html

Hier ein Beispiel aus unserer Workflow-Sitzung: Parallel Beam #Tomography at #GINIX

#HoToPy, #Python-basierte Prozessierung für holografischen #PhasenKontrast / #Röntgen-#Tomografie: https://journals.iucr.org/s/issues/2025/06/00/gui5007/index.html

Giant ‘Gravity Hole’ in the Ocean May Be the Ghost of an Ancient Sea
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https://www.scientificamerican.com/article/giant-gravity-hole-in-the-ocean-may-be-the-ghost-of-an-ancient-sea1/ <-- shared technical media article
--
https://doi.org/10.1029/2022GL102694 <-- shared 2023 paper
--
https://oceanservice.noaa.gov/facts/geoid.html <-- technical description of a geoid
--
[theories abound]
"... KEY POINTS
• Employing time dependent global mantle convection models since the Cretaceous. [the authors] simulate the origin of the enigmatic Indian Ocean geoid low
• Plumes forming along the edges of the African Large Low Shear Velocity province (LLSVP) control the regional geoid in the Indian Ocean
• These plumes, in turn are generated by lower mantle Tethyan slabs that perturb the African LLSVP…”
#GIS #spatial #mapping #geoid #gravity #mapping #global #remotesensing #plume #ocean #ancientocean #gravityhole #geophysics #IndianOcean #geology #structuralgeology #crust #mantle #core #high #low #potsdamgravitypotato #IOGL #tomography #model #modeling #plate #tectonicplate #Tethys #slab #mantleplume #LLSVP #AfricanLargeLowShearVelocity

Sept 11: Christoph Lerche (@fzj) on tomographic reconstruction in MRI, CT & PET. Understand the fundamentals behind 3D medical images.

Register for the series 👉 https://bit.ly/6-image-processing-tasks

@helmholtz
#imaging #MedicalImaging #Tomography

8-channel high-speed #OpenSource #electrical #impedance #tomography device implemented on a programmable #system-on-a-chip:

#EIT is a non-invasive #imaging technique providing info about the internal #conductivity distribution of a body/object

https://doi.org/10.1016/j.ohx.2025.e00667
#DIYbio #lab #instruments #SoC

Following on from their successful meeting in 2023, @J_Cell_Sci are delighted to announce a second iteration of the Imaging Cell Dynamics Meeting to be held in 2026.

Find out more:

https://www.biologists.com/meetings/jcsimaging/

#Cells #CellDyamics #CellScience #Imaging #JCS #Microscopy #SuperResolutionImaging #ElectronMicroscopy #Tomography #ExpansionMicroscopy #OrganelleDynamics #MembraneTrafficking #CytoskeletalDynamics #TissueDynamics #ImageAnalysis #LightMicroscopy #Microscope

is happy to have spent *so much* time on automated extraction of single fish from 20 combined tomographic scans (20 x 6 fish) a while ago. Because re-doing this on a fresh TB batch of 8 scans (48 fish) of nearly equal fish is done in half a morning. See https://github.com/habi/sticklebacks for the #Jupyter notebooks. #tomography #ecology

Biomass - ESA's Forest Mission – Mapping Biomass From Space - Overview Video
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#GIS #spatial #mapping #biomass #satellite #remotesensing #earthobservation #spatialanalysis #spatiotemporal #vegetation #forest #radar #canopy #tomography #imaging #geomorphometry #forests #carbon #carbonaccounting #climatescience #management #planning #ecosystems #ESA

Biomass - ESA's Forest Mission – Mapping Biomass From Space
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https://www.esa.int/Applications/Observing_the_Earth/FutureEO/Biomass <-- shared Biomass information hub
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#GIS #spatial #mapping #biomass #satellite #remotesensing #earthobservation #spatialanalysis #spatiotemporal #vegetation #forest #radar #canopy #tomography #imaging #geomorphometry #forests #carbon #carbonaccounting #climatescience #management #planning #ecosystems
#ESA

is happy to hear that https://doi.org/10.1101/2024.11.10.622888 “has been judged scientifically suitable for publication" in PLOS One after a round of peer review. Once "it meets all outstanding technical requirements" it will be published online. For the moment you all have to read the bioRxiv version. And can nonetheless already look into the full dataset yourself, for example at https://webknossos.org/links/U8wuIdhmfzWMr7rm

#tomography #microct #femaleanatomy #science

A $100 DIY muon tomographer
https://spectrum.ieee.org/diy-muon-tomography
#ycombinator #arduino #geiger_counter #muons #remote_sensing #tomography #type_departments

$100 Muon Detector Lets You Harness the Cosmos
https://spectrum.ieee.org/diy-muon-tomography
#ycombinator #arduino #geiger_counter #muons #remote_sensing #tomography #type_departments

In unserer onlinenen #Ringvorlesung heute:

Basics of #XRay #Imaging and Computed #Tomography #CT

15:30 Uhr mit @mosterh1 von der @unigoettingen

Einwahl: https://kit-lecture.zoom-x.de/j/65527468773?pwd=axMdaXp5Jebvan8TVz9qbo4bkL3MHl.1

Kenncode: whsj=71J

#Synchrotron #Röntgen #Forschung #NFDIRocks

New paper, just published in Physical Review X Energy, on the muography of the G3 nuclear reactor

by Baptiste Lefevre and co-authors
https://doi.org/10.1103/PRXEnergy.4.013002

The visualization software I developed for #Cosmology contributed in the mapping of the inner, inaccessible structure of the reactor.

▶️ see the video and interactive visualization here: https://journals.aps.org/prxenergy/abstract/10.1103/PRXEnergy.4.013002#supplemental

#Physics #Muography #Nuclear #NuclearReactor #science #STEM #engineering #Energy #G3 #Muons #MuonTomography #tomography

Gleich beginnt die nächste Postersitzung beim #DESY Nutzerinnentreffen #UM25 – mein heutiger Beitrag:

"#FPGA Based Live-Reco for #Tomography: Preparing for 4th Generation Data Rates"

Mit dem Upgrade zum #PetraIV #Synchrotron erwarten wir eine rund hundertfach höhere Datenrate, speziell in der Parallelstrahl-#Tomografie an der #GINIX könnten es ca. 3 Petabyte täglich werden. Hier studieren wir eine Live-Rekonstruktion des Datenstroms mittels programmiererbarer Hardware.

https://sci.photos/QR/UM25/#ginix

Atop The Oregon Cascades, [Research] Team Finds A Huge Buried Aquifer
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https://www.eurekalert.org/news-releases/1069774 <-- shared technical article
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https://doi.org/10.1073/pnas.2415155122 <-- shared paper
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https://www.usgs.gov/centers/oregon-water-science-center/science/mckenzie-river-source-water-study <-- shared USGS technical article, 2011, ‘McKenzie River Source Water Study’
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https://youtu.be/6R8e5HwGMwU?si=sniW4bvvzzviTYie <-- shared media video overview
--
#GIS #spatial #mapping #model #modeling #water #hydrology #Oregon #Cascades #CascadeMountains #PNW #PacificNorthwest #volcanic #rocks #aquifer #waterresources #watermanagement #climatechange #snowpack #drought #spatialanalysis #CriticalZone #geohazards #geology #engineeringgeology #landscapes #weathering #bedrock #holocene #groundwater #structuralgeology #orogeny #remotesensing #geophysics #sampling #drilling #porosity #permability #tomography #lava #spring #seep #breccia #discharge #streams #runoff #precipitation #climate #rainfall #recharge

These Revolutionary Maps Are Revealing Earth’s Geological Secrets
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https://www.zmescience.com/science/tectonic-model-beatiful-new/ <-- shared technical article
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https://doi.org/10.1016/j.earscirev.2022.104069 <-- shared paper
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#GIS #spatial #mapping #tomography #geology #remotesensing #structuralgeology #plates #platetectonics #earth #global #model #modeling #opendata #opensource #spatialdata #vector #platemodel #mechanics #GPS #earthquakes #volcanoes #topography #orogeny #tectonics #spatiotemporal #spatialanalysis #Pangea #Gondwana #Gondwanaland #ReuniteGondwanaland #Laurasia #lithosphere #crust #mantle #core #geophysics #geochemistry #geochronology #dating #Mesoproterozoic

#OPTImAL: #Optical projection #tomography implemented for #OpenSource accessibility & low cost:

-#LED excitation
-#motorized rotation stage
-#GPU-based #image reconstruction (#MATLAB/#ASTRA)

https://doi.org/10.1098/rsta.2023.0101
#DIYbio #lab #instruments #fluorescence #imaging #MicroManager

Geologists Stunned On Discovering A Part Of The Earth That Disappeared 20 Million Years Ago
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https://www.good.is/geologists-stunned-at-discovery-of-earths-ancient-mega-plate-they-didnt-know-about-at-all-ex1 <-- shared technical article
--
https://doi.org/10.1016/j.gr.2023.09.013 <-- shared paper
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https://youtu.be/VyEUWySaFPc?si=rzUiIh14GxmiC0l- <-- reconstruction animation
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#GIS #spatial #mapping #remotesensing #geomagnetism #argoland #kinematicreconstruction #platetectonics #GPlates #junctionregion #PhilippineSeaPlate #Borneo #NewZealand #Japan #Zealandia #Philippines #NewGuinea #junction #subduction #plates #geology #structuralgeology #pontus #pontusplate #paeleogeography #geologichistory #Zealandia #seismology #spatialanalysis #spatiotemporal #tomography #model #modeling

Researchers explore a #single_cell using advanced #X_ray imaging techniques.

#tomography #fluorescence #microscopy

https://phys.org/news/2024-07-explore-cell-advanced-ray-imaging.html

ABI EIT: A wearable #OpenSource electrical #impedance #tomography (#EIT) device:

-#medical #imaging
-monitoring #lung/#cardiac function, #brain activity
-cost: ~US$260
-#3Dprinted parts
-#Teensy controller

https://doi.org/10.1016/j.ohx.2024.e00521
#DIYbio #lab #instruments #medicine #diagnostics

Keynote by Joost Batenburg: Real-time #Imaging Pipelines for #Tomography

- filtered back projection: einfacher & schneller Algorithmus, Messung nicht ideal genug
- iterative Rekonstruktionen: langsam
- algebraische Filter: schnell & gut

#HIConference2024 #HelmholtzImaging

'Convergence for nonconvex ADMM, with applications to CT imaging', by Rina Foygel Barber, Emil Y. Sidky.

http://jmlr.org/papers/v25/21-0831.html

#tomography #nonconvex #optimization