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Related Experiment Videos

Processes involved in reading imaging studies: workflow analysis and implications for workstation development

S B Gay1, A H Sobel, L Q Young

  • 1Department of Radiology, University of Virginia Health Sciences Center, Charlottesville 22908, USA.

Journal of Digital Imaging
|February 1, 1997
PubMed
Summary
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Software development for imaging workstations needs improvement. Enhancements should focus on facilitating image comparison, lesion measurement, and reducing interruptions during computed tomography (CT) interpretation.

Area of Science:

  • Radiology and Medical Imaging
  • Human-Computer Interaction
  • Workflow Analysis

Background:

  • Software development for imaging workstations has not kept pace with hardware advancements.
  • Understanding the cognitive and physical processes in interpreting cross-sectional imaging is crucial for guiding workstation development.

Purpose of the Study:

  • To analyze the workflow involved in interpreting body computed tomography (CT) scans.
  • To identify bottlenecks and areas for improvement in current CT interpretation processes.

Main Methods:

  • Observation of performance and interpretation of body CT scans.
  • Workflow analysis using bottleneck identification.
  • Recording of events during the interpretation process.

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Main Results:

  • 44% of cases involved comparing current images with prior scans.
  • 87% of scans utilized non-soft tissue windows or precontrast comparisons.
  • 85% of interpretations required returning to previous scan levels for review.
  • Lesion measurements were performed in 44% of cases, with 63% of those involving comparison with old studies.
  • Interpretation interruptions occurred in 26% of cases due to clinician consultations.
  • Film folder retrieval was the bottleneck for film-based interpretation.
  • The CT examination itself was the bottleneck for Picture Archiving and Communication System (PACS) reading.

Conclusions:

  • CT interpretation workstations should enhance navigation within scans, comparison with prior studies, and lesion measurement capabilities.
  • Future workstation designs should optimize time between interpretation sessions, minimize interruptions, and automate physician-interactive functions.