[Cost effectiveness of image diagnosis]

Area of Science:

• Medical Imaging Informatics
• Health Information Systems
• Radiology Workflow Optimization

Context:

• Traditional film-based medical image storage is costly and inefficient.
• The integration of digital systems like PACS, HIS, and RIS is transforming radiology departments.
• Evaluating the cost-effectiveness and workflow improvements of these digital systems is crucial for healthcare institutions.

Purpose:

• To compare the costs of electronic medical image storage with traditional film storage.
• To evaluate the impact of Hospital Information System/Radiological Information System (HIS/RIS) on workflow efficiency.
• To determine factors influencing the optimal use of diagnostic imaging for maximizing diagnostic efficacy.

Summary:

• Optimizing pixel size (175 microns x 175 microns, 12 bits) and employing lossless compression for magneto-optical disks (MOD) can make electronic image storage costs comparable to film storage.
• HIS/RIS integration markedly reduced examination, film delivery, and total turnaround times by over 23 hours on average.
• A survey of 260 healthcare professionals indicated that technical efficacy and diagnostic accuracy in radiology significantly influence physician decision-making.

Impact:

• Digital systems, when optimized, offer cost-effective alternatives to film storage for medical images.
• HIS/RIS implementation leads to substantial improvements in radiology department efficiency and patient throughput.
• Enhancing the technical and diagnostic quality of radiology services directly benefits clinical decision-making and patient care.