Tele-radiology and Remote Diagnostics

Tele-radiology is the electronic transmission of radiological images (X-ray, CT, MRI, ultrasound) from one location to another for interpretation and consultation by a radiologist.

Key technologies

Element	Role
DICOM	Standard format and communication protocol for medical images
PACS	Picture Archiving and Communication System: stores and distributes images
RIS / HIS	Radiology and hospital information systems
Network	Broadband, VPN, encryption (HIPAA-style privacy)
Compression	Lossless or controlled lossy to speed up transfer
Viewer	Diagnostic-quality monitors and 3D tools

Remote diagnostics

Expert diagnosis, second opinion and even equipment monitoring are done at a distance, for example reading a rural hospital's CT in a city centre, or a vendor engineer diagnosing a machine fault remotely.

Advantages

• Specialist access for rural and remote areas.
• 24x7 emergency reporting (night-time coverage), faster turnaround.
• Second opinions and teaching; reduced patient travel and cost.

Challenges

Data security and privacy, bandwidth, legal responsibility, image quality, integration and standards.

Exam tip

Draw the DICOM - PACS - remote reader flow and list 3 benefits and 3 challenges.