Tools

X-ray Simulator

Drive a virtual C-arm around real CT anatomy. Every image is computed from the CT the way X-rays pass through the body, so views, tilt and magnification behave like the OR.

BetaImages are computed from a real CT for teaching. Education only, not for clinical use.

Lumbar spine C-armFluoro views of a real L1 to S1 CT: AP, true lateral, Scotty dog obliques, squared endplates.Beta · desktop first
Ankle C-armMortise, lateral and stress views. Planned after the spine module.Planned

How it works

The X-ray Simulator traces X-rays from a point source through a CT volume and applies Beer-Lambert attenuation, then adds the look of an image intensifier: round field, vignetting, slight distortion, noise and automatic brightness. Pedicle and K-wire placement with breach scoring come next.

Works best on a desktop or laptop with a recent browser (WebGL2). Education only; no patient data.

CT: CT COLONOGRAPHY (ACRIN 6664), The Cancer Imaging Archive, doi:10.7937/K9/TCIA.2015.NWTESAY1, CC BY 3.0. Data citation: Smith, K., Clark, K., Bennett, W., Nolan, T., Kirby, J., Wolfsberger, M., Moulton, J., Vendt, B., Freymann, J. (2015). Data From CT COLONOGRAPHY (ACRIN 6664) (Version 2) [dataset]. The Cancer Imaging Archive. https://doi.org/10.7937/k9/tcia.2015.nwtesay1. Dataset, license, data usage policy. Segmentation: Bone and organ masks made by running the TotalSegmentator tool (open 'total' task, code and weights Apache-2.0; Wasserthal J, et al. Radiol Artif Intell. 2023;5(5):e230024, doi:10.1148/ryai.230024) on this CT. Changes: Cropped to L1 to S1, table removed, colonography gas in the bowel filled with soft tissue and tagged bowel contents capped, denoised and sharpened in bone, resampled, quantised; teaching regions added (see processing).