IMPROVING IMAGE QUALITY BY INCREASING THE AMOUNT OF LIGHT IN THE READING ROOM | JoVE Visualize

IMPROVING IMAGE QUALITY BY INCREASING THE AMOUNT OF LIGHT IN THE READING ROOM

¹Department of Medical Physics and Biomedical Engineering, Sahlgrenska University Hospital, Gula stråket 2b, Göteborg 413 45, Institute of Clinical Sciences, University of Gothenburg, Göteborg, Sweden.

Radiation Protection Dosimetry|April 11, 2021

View abstract on PubMed

Summary

Medical display standards often require dark rooms. This study found brighter displays in brighter rooms improve contrast and stability, suggesting updated requirements for diverse clinical settings.

Area of Science:

Medical imaging
Display technology
Human-computer interaction

Background:

Current medical display standards frequently mandate viewing in dark environments.
This requirement impacts the usability and effectiveness of displays in varied clinical settings.
Fluctuating ambient illuminance poses challenges to maintaining image quality and viewer comfort.

Purpose of the Study:

To theoretically evaluate the validity of existing medical display requirements.
To assess image contrast and stability under fluctuating illuminance conditions.
To explore the impact of display luminance and illuminance on contrast tolerance.

Main Methods:

Utilized the Grayscale Standard Display Function (DICOM Part 14).
Calculated image contrast for various display luminance levels.
Modeled illuminance fluctuations to determine contrast stability limits.

Main Results:

Some existing requirements are only valid in strictly dark viewing rooms.
Brighter displays in brighter rooms enhance image contrast and stability.
Improved ergonomics and reduced viewer fatigue are associated with brighter displays.

Conclusions:

Current standards may be overly restrictive, limiting display use in brighter clinical areas.
Updated requirements could enable displays in environments like operating rooms and dental practices.
Optimizing display luminance and room illuminance is key for better medical image perception.