A CT or MRI series is already three-dimensional: a stack of slices, each with a known position in millimetres. Innerslice reassembles that stack into a volume you can turn, cut through and measure, in the browser, on your own device.
A scan comes back as a folder of hundreds of grayscale slices in a format (DICOM) that nothing on a normal computer can open. Patients get a two-minute description at an appointment and a disc they can't read. The information is theirs, but it isn't usable.
Drop the DICOM folder (or the .zip straight from a patient portal) into the browser and it rebuilds the slices into a volume you can rotate, cut through on three planes and measure in real millimetres. The whole thing happens on your own machine: nothing is uploaded, and there is no account.

Drop in the whole folder from a hospital CD or USB stick, or the .zip from a patient portal; no unzipping first. Pick Doctor view or Patient view. No scans to hand? There's a sample chest scan generated on the device, so you can try it without anyone's data.
Click the screenshot to view it full size.

The volume renders with a choice of looks tuned to the scan type (CT windows in Hounsfield units, MR tissue, MR surface, bright-only) and a section plane you can slide through across, left-right or front-back. Axial, sagittal and coronal slices sit underneath and stay in sync with the cut.
Click the screenshot to view it full size.

Drop pins on the model to measure a distance along tissue, an angle, or read the value at a point. Measurements are taken against the series' own millimetre spacing, nothing is smoothed into shape, and every pin shows up on the 2D slices too. Add notes, step through slices at a chosen stride, and export the views.
Click the screenshot to view it full size.
Innerslice is an independent research tool. It is not a medical device and not a diagnostic one: it shows you the scan, it doesn't interpret it. The scan in these screenshots is a hamstring MRI of the authorThe scan in these screenshots is the author's own.#39;s own, shared with his permission (he is also the developer).
Scans, CAD, logs, exports from a system nobody else can read. If the data is there, I can build the thing that makes it usable.