Open dataset · MR

MedSeg Lateral Ventricles (MRI)

Name: MedSeg Lateral Ventricles (MRI)
Creator: MedSeg
License: https://creativecommons.org/publicdomain/zero/1.0/

Lateral ventricles segmented on 50 brain MRI scans, each from a different OpenNeuro source.

Open a sample case in your browser Open the full dataset in MedSeg →

The sample cases below open read-only in the MedSeg editor - no account needed. Open the full dataset to copy all 50 cases into your workspace, run AI models, and segment.

MR 50 cases CC0-1.0 Reference masks

MedSeg Lateral Ventricles (MRI) - example case rendered in the MedSeg editor — Example case with its reference segmentation - straight from the catalog, rendered by MedSeg.

Browse sample cases

These cases open instantly in the browser-based editor - scroll the slices, inspect the reference masks, window the image. No account needed.

case-01 - MedSeg Lateral Ventricles (MRI) case preview

case-01Open

case-02 - MedSeg Lateral Ventricles (MRI) case preview

case-02Open

case-03 - MedSeg Lateral Ventricles (MRI) case preview

case-03Open

case-04 - MedSeg Lateral Ventricles (MRI) case preview

case-04Open

case-05 - MedSeg Lateral Ventricles (MRI) case preview

case-05Open

case-06 - MedSeg Lateral Ventricles (MRI) case preview

case-06Open

Open the full dataset in MedSeg → All 50 cases - copy into your workspace to run AI and segment.

About this dataset

The lateral ventricles segmented by the MedSeg team on 50 brain MRI scans, each drawn from a different OpenNeuro dataset to maximize heterogeneity of scanner, sequence and population.

Fact	Value
Cases	50
Series	50
Size	0.7 GB
Modality	MR
Reference masks	Yes
License	CC0-1.0
Publisher	MedSeg
Version	-

What you can do with it in MedSeg

Copied cases behave like normal project series - the public image bytes are linked, not duplicated, so copies are instant and take no extra storage.

Copy cases into a project.
Filter, multi-select, copy - reference masks come along if you want them.
Run AI segmentation.
TotalSegmentator, MRSegmentator, nnInteractive 3D clicks/scribbles, or text-prompted VoxTell.
Edit and measure.
Brush, lasso, fill, oblique planes, volumes in ml - in the browser.
Train your own nnU-Net.
Correct masks on a handful of cases and train a custom model on hosted GPUs.

License: CC0-1.0

Open data still carries obligations - attribution at minimum. Check the license terms before publishing work built on this dataset. MedSeg is a research tool, not a medical device.