Diagnostic Imaging Utilization in the Emergency Department: Recent Trends in Volume and Radiology Work Relative Value...

Area of Science:

• Radiology
• Emergency Medicine
• Health Services Research

Background:

• Emergency department (ED) imaging is crucial for patient diagnosis and management.
• Understanding trends in ED imaging utilization and associated radiologist workload is essential for resource planning.

Purpose of the Study:

• To quantify and characterize recent trends in ED imaging volumes.
• To analyze radiology work relative value units (wRVUs) in trauma centers.

Main Methods:

• Data on diagnostic radiology imaging volumes and wRVUs were collected from Level I and III trauma centers (2014-2021).
• Imaging volumes were analyzed by modality, examination code, and location.
• Data were normalized per ED encounter (EDE) and analyzed for percentage change.

Main Results:

• ED imaging volumes per EDE increased for CT and MRI at both Level I and III trauma centers.
• Total wRVUs per EDE increased significantly at both trauma center levels.
• Advanced imaging modalities like CT showed disproportionate increases in utilization.

Conclusions:

• ED imaging utilization and radiologist workload (wRVUs) per EDE have increased.
• There is a growing demand for advanced imaging interpretation in ED settings.
• Radiology departments must prepare for escalating work demands, including at lower-acuity facilities.