Brain MRI Viewer

Dataset

View

Layout

Look from

Auto-rotate

Projection

Background

axes

Rendering

Mode

Quality

Sampling

Volume opacity

Opacity from

Opacity up to

Ramp width

Density

Edge boost

Tissue between “from” and “up to” is visible; pull “up to” down to hide the brightest tissue (fat, fluid). The yellow curve on the histogram shows the opacity.

Isosurfaces

Colour

colour surfaces by intensity

Each surface wraps tissue brighter than its level. Lower the opacity of outer surfaces to see the ones inside. Levels are marked on the histogram.

Projection

Type

Depth cue

X-ray

Density

Invert

radiograph style (dense = light)

Slab

Limits the projection to a slab of this thickness through the crosshair, facing you. Move it with the sliders below or by clicking in the 2D views.

Slab centre (crosshair)

Where the slab is centred: the point where the three 2D views cross. Clicking in a 2D view moves it too.

Planes (crosshair)

Where the three slice planes meet: the same point the 2D views cross at. Clicking in a 2D view moves it too.

Show

Axial Cor. Sag.

Right → Left

Front → Back

Bottom → Top

Ignore air below

Transfer function

Colour map

Window

Brightness

Your Rendering, Transfer function and face position settings are remembered for each dataset in this browser. Export defaults shows them as JSON, to be built in as each dataset's default.

Between-slice interpolation

Method

Upsampling

Slice spacing

Lighting

Shading

Ambient

Diffuse

Specular

Shininess

Clipping

Cutaway

Right → Left

Front → Back

Bottom → Top

Remove box

cut the box out instead of keeping it

Solid cut faces

show cut surfaces as opaque slices

Facing cut

“Facing cut” slices away everything nearer to you than a plane facing the camera — rotate to cut from any angle.

Slice views

Greyscale

ignore colour map in 2D views

Crosshair

Click/drag in a slice view to move the crosshair · wheel scrolls slices · Ctrl+wheel zooms · right-drag pans · double-click resets.

Help

3D view: drag to rotate, right-drag or Shift+drag to pan, wheel to zoom, double-click to reset.
Keys: 1–6 view directions (A P L R S I), Space auto-rotate, M cycle mode, F layout, [ ] previous / next series.

The images were reconstructed from PACS screenshots: overlay text was removed, each slice's display window was undone so brightness is consistent, and in-between slices are synthesised (optical flow by default). Slice gaps aren't recorded in screenshots, so spacing is an estimate — adjust it above if the anatomy looks squashed or stretched. The left/right order of the sagittal series is assumed.

Not for diagnostic use.

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