DICOM

DICOM (Digital Imaging and Communications in Medicine) is the international standard that governs how medical imaging is stored, transmitted, and managed. It defines both a file format for images like CT, MRI, and X-ray studies — bundling the pixel data together with rich patient and acquisition metadata — and the network protocols that imaging devices, workstations, and archives use to exchange those studies. Nearly every piece of medical imaging equipment in the world speaks DICOM.

• File format plus protocol - Specifies both how an image is encoded on disk and how it moves across a network.
• Embedded metadata - Carries patient, study, series, and equipment information alongside the pixels in a structured header.
• PACS interoperability - Lets imaging devices and Picture Archiving and Communication Systems from different vendors work together.
• DICOMweb - Modern RESTful services (WADO-RS, QIDO-RS, STOW-RS) expose DICOM data over HTTP and JSON for web and mobile access.

In API operations, DICOM is where healthcare imaging meets the web. The DICOMweb services turn a decades-old clinical standard into HTTP APIs that developers can actually build against, and cloud providers now offer managed DICOM stores fronted by REST endpoints. When an imaging workflow has to interoperate — across vendors, hospitals, or with AI models reading scans — DICOM is the contract that makes the data portable, which is exactly what an agent or application needs to consume it safely.