---
type: asset-provenance
status: active
created: 2026-09-12
updated: 2026-09-12
audience: both
llm_priority: high
confidentiality: shared-internal
canon_version: '4.2-brand-and-communication'
canon_updated: 2026-09-11
---

# 100 micron ex vivo human-brain MRI hero film

`radiology-100micron-hero.mp4` and `radiology-100micron-hero-poster.jpg` are adaptations of an openly available 7 Tesla MRI dataset of an ex vivo human-brain specimen. This is an anatomical research visualization, not a patient examination, QuantumMed product output, medical finding, or generative reconstruction.

## Source and authors

**Dataset:** Brian L. Edlow, Azma Mareyam, Andreas Horn, Jonathan R. Polimeni, Thomas Witzel, M. Dylan Tisdall, Jean Augustinack, Jason P. Stockmann, Bram R. Diamond, Allison Stevens, Lee S. Tirrell, Rebecca D. Folkerth, Lawrence L. Wald, Bruce Fischl, and Andre van der Kouwe (2019). _Data from: 7 Tesla MRI of the ex vivo human brain at 100 micron resolution_. Dryad. [DOI: 10.5061/dryad.119f80q](https://doi.org/10.5061/dryad.119f80q).

**Selected file:** `VIDEO_4_100_MICRON_MRI_SYNTHESIZED_FLASH25_AXIAL.mp4`, mirrored in [Zenodo record 5132897](https://zenodo.org/records/5132897). Direct source: [126.9 MB MP4](https://zenodo.org/records/5132897/files/VIDEO_4_100_MICRON_MRI_SYNTHESIZED_FLASH25_AXIAL.mp4?download=1).

**Paper:** Edlow, B. L. et al. (2019). _7 Tesla MRI of the ex vivo human brain at 100 micron resolution_. Scientific Data 6, 244. [DOI: 10.1038/s41597-019-0254-8](https://doi.org/10.1038/s41597-019-0254-8).

The dataset describes a brain specimen donated by a 58-year-old woman who had no history of neurological disease and died of non-neurological causes. It was fixed in formalin and imaged ex vivo for approximately 100 hours. This media must not be described as a clinical scan, a living patient's examination, or evidence of a QuantumMed deployment.

## License

Dryad's canonical API record identifies the dataset license as [CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/). Attribution is not required by CC0, but QuantumMed retains it to preserve scientific provenance and avoid presenting third-party research media as its own acquisition.

## Verified source properties

- Original movie: 1760 × 1760 pixels, 15 fps, 78 seconds, H.264/yuv420p.
- Original file size: 126,904,513 bytes.
- Original MD5: `d900a6ffe3e3b6a98bbf2e4d57b280e5`, matching the Zenodo record.
- Original SHA-256: `161c53864e298c9bd976cc0b8d4031881cd42b62d99c97e56e32bde34984ac17`.
- No visible names, identifiers, annotations, interface elements, or audio occur in the selected sequence.

## Hero adaptation

- Selected source interval: seconds 31 through 38 of the synthesized FLASH25 axial movie.
- The seven-second sequence is followed by its reverse to create a continuous 14-second loop.
- The foreground uses a 1400 × 1400 crop of the 1760 × 1760 source and is downscaled to 960 × 960 pixels. No anatomical upscaling or synthetic detail generation is used.
- A second copy fills the 1920 × 1080 frame, receives strong optical blur and a burgundy colour map, and acts as the background.
- Near-black source background is removed from the foreground with a colour key before compositing it on the right side.
- The adaptation adds no anatomy, segmentation, finding, label, identifier, logo, or clinical overlay.
- Output: 1920 × 1080, 15 fps, 14 seconds, silent H.264/yuv420p MP4 with faststart.
- Output video SHA-256: `1ca10a32317edade10441fd211a553712624356a8038cd6807dd79ae10e1fbf7`.
- Output poster SHA-256: `90893581d6f46f0567ba6a01b1c74d1b4f7ab322fff326cef1d93bca993dbae4`.

Suggested short attribution:

> 100 µm ex vivo human-brain MRI: Edlow et al. (2019), doi:10.5061/dryad.119f80q, CC0. Adapted for the QuantumMed radiology visualization.