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Proceedings Paper

Analysis of physiological impact while reading stereoscopic radiographs
Author(s): Yasuko Y. Unno; Takashi Tajima; Takao Kuwabara; Akira Hasegawa; Nobutaka Natsui; Kazuo Ishikawa; Toyohiko Hatada
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Paper Abstract

A stereoscopic viewing technology is expected to improve diagnostic performance in terms of reading efficiency by adding one more dimension to the conventional 2D images. Although a stereoscopic technology has been applied to many different field including TV, movies and medical applications, physiological fatigue through reading stereoscopic radiographs has been concerned although no established physiological fatigue data have been provided. In this study, we measured the α-amylase concentration in saliva, heart rates and normalized tissue hemoglobin index (nTHI) in blood of frontal area to estimate physiological fatigue through reading both stereoscopic radiographs and the conventional 2D radiographs. In addition, subjective assessments were also performed. As a result, the pupil contraction occurred just after the reading of the stereoscopic images, but the subjective assessments regarding visual fatigue were nearly identical for the reading the conventional 2D and stereoscopic radiographs. The α-amylase concentration and the nTHI continued to decline while examinees read both 2D and stereoscopic images, which reflected the result of subjective assessment that almost half of the examinees reported to feel sleepy after reading. The subjective assessments regarding brain fatigue showed that there were little differences between 2D and stereoscopic reading. In summary, this study shows that the physiological fatigue caused by stereoscopic reading is equivalent to the conventional 2D reading including ocular fatigue and burden imposed on brain.

Paper Details

Date Published: 3 March 2011
PDF: 15 pages
Proc. SPIE 7966, Medical Imaging 2011: Image Perception, Observer Performance, and Technology Assessment, 79660C (3 March 2011); doi: 10.1117/12.877776
Show Author Affiliations
Yasuko Y. Unno, FUJIFILM Corp. (Japan)
Takashi Tajima, FUJIFILM Corp. (Japan)
Takao Kuwabara, FUJIFILM Corp. (Japan)
Akira Hasegawa, FUJIFILM Medical Systems USA, Inc. (United States)
Nobutaka Natsui, Tokyo Polytechnic Univ. (Japan)
Kazuo Ishikawa, Tokyo Polytechnic Univ. (Japan)
Toyohiko Hatada, Tokyo Optometric College (Japan)

Published in SPIE Proceedings Vol. 7966:
Medical Imaging 2011: Image Perception, Observer Performance, and Technology Assessment
David J. Manning; Craig K. Abbey, Editor(s)

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