| Title |
The Effects of Ambient Lighting in Chest Radiology Reading Rooms
|
|---|---|
| Published in |
Journal of Digital Imaging, February 2012
|
| DOI | 10.1007/s10278-012-9459-5 |
| Pubmed ID | |
| Authors |
Benjamin J. Pollard, Ehsan Samei, Amarpreet S. Chawla, Craig Beam, Laura E. Heyneman, Lynne M. Hurwitz Koweek, Santiago Martinez-Jimenez, Lacey Washington, Noriyuki Hashimoto, H. Page McAdams |
| Abstract |
Under typical dark chest radiography reading room conditions, a radiologist's pupils contract and dilate as their visual focus intermittently shifts between the high luminance monitor and the darker background wall, resulting in increased visual fatigue and degradation of diagnostic performance. A controlled increase of ambient lighting may minimize these visual adjustments and potentially improve comfort and accuracy. This study was designed to determine the effect of a controlled increase of ambient lighting on chest radiologist nodule detection performance. Four chest radiologists read 100 radiographs (50 normal and 50 containing a subtle nodule) under low (E=1 lx) and elevated (E=50 lx) ambient lighting levels on a DICOM-calibrated, medical-grade liquid crystal display. Radiologists were asked to identify nodule locations and rate their detection confidence. A receiver operating characteristic (ROC) analysis of radiologist results was performed and area under ROC curve (AUC) values calculated for each ambient lighting level. Additionally, radiologist selection times under both illuminance conditions were determined. Average AUC values did not significantly differ (p>0.05) between ambient lighting levels (estimated mean difference=-0.03; 95% CI, (-0.08, 0.03)). Average selection times decreased or remained constant with increased illuminance. The most considerable decreases occurred for false positive identification times (35.4±18.8 to 26.2±14.9 s) and true positive identification times (29.7±18.3 to 24.5±15.5 s). No performance differences were statistically significant. Study findings suggest that a controlled increase of ambient lighting within darkly lit chest radiology reading rooms, to a level more suitable for performance of common radiological tasks, does not appear to have a statistically significant effect on nodule detection performance. |
X Demographics
The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Practitioners (doctors, other healthcare professionals) | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 52 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 2% |
| Sweden | 1 | 2% |
| Unknown | 50 | 96% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Bachelor | 8 | 15% |
| Researcher | 6 | 12% |
| Student > Master | 5 | 10% |
| Other | 4 | 8% |
| Professor | 4 | 8% |
| Other | 16 | 31% |
| Unknown | 9 | 17% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 11 | 21% |
| Nursing and Health Professions | 8 | 15% |
| Physics and Astronomy | 6 | 12% |
| Engineering | 4 | 8% |
| Business, Management and Accounting | 2 | 4% |
| Other | 9 | 17% |
| Unknown | 12 | 23% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 18 October 2012.
All research outputs
#15,253,344
of 22,681,577 outputs
Outputs from Journal of Digital Imaging
#726
of 1,045 outputs
Outputs of similar age
#165,765
of 250,909 outputs
Outputs of similar age from Journal of Digital Imaging
#5
of 7 outputs
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