Radiology runs on DICOM, the file every CT, MRI, and X-ray produces. Aperture opens a real
.dcm study entirely client-side: it parses the DICOM header, rescales stored pixels to Hounsfield
units, and renders the 16-bit image with interactive window/level, zoom, pan, and CT presets — the same controls
a radiologist uses at a PACS workstation. A synthetic head-phantom study is loaded so it works with one click.