Optimum ambient lighting conditions for the viewing of softcopy radiological images

Mark Mc Entee; Patrick Brennan; Micheal Evanoff; Peter Phillips; William T. O'Connor; David Manning

doi:10.1117/12.660137

Optimum ambient lighting conditions for the viewing of softcopy radiological images

Mark Mc Entee, Patrick Brennan, Micheal Evanoff, Peter Phillips, William T. O'Connor, David Manning

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Purpose The aim of the work is to determine the optimum ambient lighting conditions for viewing softcopy radiological images on LCD Materials and Methods The study measured the diagnostic performance of observers viewing images on liquid crystal display (LCD) monitor under different ambient lighting conditions: 480, 100, 40, 25 and 7lux. An ROC analysis was performed as a measure of diagnostic performance. A set of 30 postero-anterior wrist images was used, 15 of which had fractures present the remainder were normal. These were evaluated by 79 American Board of Radiology certified experienced Radiologists. Results The observers performed better at 40 and 25lux compared with 480 and 100 lux. At 7lux, the observers' performance was generally similar to that at 480 and 100lux. Conclusion Using the previously recommended ambient lighting levels of 100lux resulted in no improvement over typical office lighting of 480lux. Lower ambient lighting levels ranging from 40-25lux improves diagnostic performance over higher levels. Lowering ambient lighting to 7lux (almost complete darkness apart from the light emanating from the monitor) reduces diagnostic performance to a level equal to that of typical office lighting. It is clearly important to control ambient lighting to ensure that diagnostic performance is maximized.

Original language	English
Title of host publication	Medical Imaging 2006
Subtitle of host publication	Image Perception, Observer Performance, and Technology Assessment
DOIs	https://doi.org/10.1117/12.660137
Publication status	Published - 2006
Externally published	Yes
Event	Medical Imaging 2006: Image Perception, Observer Performance, and Technology Assessment - San Diego, CA, United States Duration: 14 Feb 2006 → 16 Feb 2006

Publication series

Name	Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume	6146
ISSN (Print)	1605-7422

Conference

Conference	Medical Imaging 2006: Image Perception, Observer Performance, and Technology Assessment
Country/Territory	United States
City	San Diego, CA
Period	14/02/06 → 16/02/06

Keywords

Ambient lighting
Diagnostic-performance
Optimized-displays
PACs
ROC
Teleradiology

Access to Document

10.1117/12.660137

Cite this

Entee, M. M., Brennan, P., Evanoff, M., Phillips, P., O'Connor, W. T., & Manning, D. (2006). Optimum ambient lighting conditions for the viewing of softcopy radiological images. In Medical Imaging 2006: Image Perception, Observer Performance, and Technology Assessment Article 61460W (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 6146). https://doi.org/10.1117/12.660137

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title = "Optimum ambient lighting conditions for the viewing of softcopy radiological images",

abstract = "Purpose The aim of the work is to determine the optimum ambient lighting conditions for viewing softcopy radiological images on LCD Materials and Methods The study measured the diagnostic performance of observers viewing images on liquid crystal display (LCD) monitor under different ambient lighting conditions: 480, 100, 40, 25 and 7lux. An ROC analysis was performed as a measure of diagnostic performance. A set of 30 postero-anterior wrist images was used, 15 of which had fractures present the remainder were normal. These were evaluated by 79 American Board of Radiology certified experienced Radiologists. Results The observers performed better at 40 and 25lux compared with 480 and 100 lux. At 7lux, the observers' performance was generally similar to that at 480 and 100lux. Conclusion Using the previously recommended ambient lighting levels of 100lux resulted in no improvement over typical office lighting of 480lux. Lower ambient lighting levels ranging from 40-25lux improves diagnostic performance over higher levels. Lowering ambient lighting to 7lux (almost complete darkness apart from the light emanating from the monitor) reduces diagnostic performance to a level equal to that of typical office lighting. It is clearly important to control ambient lighting to ensure that diagnostic performance is maximized.",

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author = "Entee, {Mark Mc} and Patrick Brennan and Micheal Evanoff and Peter Phillips and O'Connor, {William T.} and David Manning",

year = "2006",

doi = "10.1117/12.660137",

language = "English",

isbn = "0819464252",

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Entee, MM, Brennan, P, Evanoff, M, Phillips, P, O'Connor, WT & Manning, D 2006, Optimum ambient lighting conditions for the viewing of softcopy radiological images. in Medical Imaging 2006: Image Perception, Observer Performance, and Technology Assessment., 61460W, Progress in Biomedical Optics and Imaging - Proceedings of SPIE, vol. 6146, Medical Imaging 2006: Image Perception, Observer Performance, and Technology Assessment, San Diego, CA, United States, 14/02/06. https://doi.org/10.1117/12.660137

Optimum ambient lighting conditions for the viewing of softcopy radiological images. / Entee, Mark Mc; Brennan, Patrick; Evanoff, Micheal et al.
Medical Imaging 2006: Image Perception, Observer Performance, and Technology Assessment. 2006. 61460W (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 6146).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AB - Purpose The aim of the work is to determine the optimum ambient lighting conditions for viewing softcopy radiological images on LCD Materials and Methods The study measured the diagnostic performance of observers viewing images on liquid crystal display (LCD) monitor under different ambient lighting conditions: 480, 100, 40, 25 and 7lux. An ROC analysis was performed as a measure of diagnostic performance. A set of 30 postero-anterior wrist images was used, 15 of which had fractures present the remainder were normal. These were evaluated by 79 American Board of Radiology certified experienced Radiologists. Results The observers performed better at 40 and 25lux compared with 480 and 100 lux. At 7lux, the observers' performance was generally similar to that at 480 and 100lux. Conclusion Using the previously recommended ambient lighting levels of 100lux resulted in no improvement over typical office lighting of 480lux. Lower ambient lighting levels ranging from 40-25lux improves diagnostic performance over higher levels. Lowering ambient lighting to 7lux (almost complete darkness apart from the light emanating from the monitor) reduces diagnostic performance to a level equal to that of typical office lighting. It is clearly important to control ambient lighting to ensure that diagnostic performance is maximized.

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Optimum ambient lighting conditions for the viewing of softcopy radiological images

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Keywords

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