Picture archiving and communication system bandwidth and storage requirements

Area of Science:

• Medical Imaging Informatics
• Radiology Department Management
• Health IT Infrastructure

Background:

• Traditional film-based radiology workflows present challenges for data management and access.
• The transition to digital imaging necessitates a thorough evaluation of storage and network requirements.
• Academic radiology departments face unique demands due to research and educational activities.

Purpose of the Study:

• To determine the image storage and network bandwidth needs for a fully digital academic radiology department.
• To model data flow and acquisition rates in a digital radiology environment.
• To assess the adequacy of existing Picture Archiving and Communication System (PACS) infrastructure.

Main Methods:

• Integrated radiology information system (RIS) data with image production metrics.
• Modeled image acquisition based on departmental data.
• Analyzed image distribution patterns to predict digital data flow.
• Evaluated network bandwidth requirements against current PACS capabilities.

Main Results:

• A fully digital department would generate approximately 15.7 GB of data daily, equating to 3.5 TB annually.
• Peak acquisition rates could reach 1.8 GB per hour, with sustained rates over 1 GB per hour during workdays.
• Existing PACS infrastructure likely insufficient to handle projected data volumes and network traffic.
• A distributed networked archive solution demonstrated potential for optimizing image access.

Conclusions:

• Significant upgrades in storage and network infrastructure are essential for a digital radiology department.
• Current PACS may require enhancement or replacement to support digital workflows.
• Distributed archiving strategies offer a viable solution for efficient image retrieval and management.