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Erschienen in: Japanese Journal of Radiology 6/2019

19.03.2019 | Original Article

Monitoring of fatigue in radiologists during prolonged image interpretation using fNIRS

verfasst von: Takashi Nihashi, Takeo Ishigaki, Hiroko Satake, Shinji Ito, Osamu Kaii, Yoshine Mori, Kazuhiro Shimamoto, Hiromichi Fukushima, Kojiro Suzuki, Hiroyasu Umakoshi, Mitsuo Ohashi, Fumio Kawaguchi, Shinji Naganawa

Erschienen in: Japanese Journal of Radiology | Ausgabe 6/2019

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Abstract

Purpose

To determine whether functional near-infrared spectroscopy (fNIRS) allows monitoring fatigue in radiologists during prolonged image interpretation.

Materials and methods

Nine radiologists participated as subjects in the present study and continuously interpreted medical images and generated reports for cases for more than 4 h under real clinical work conditions. We measured changes in oxygenated hemoglobin concentrations [oxy-Hb] in the prefrontal cortex using 16-channel fNIRS (OEG16ME, Spectratech) every hour during the Stroop task to evaluate fatigue of radiologists and recorded fatigue scale (FS) as a behavior data.

Results

Two subjects showed a subjective feeling of fatigue and an apparent decrease in brain activity after 4 h, so the experiment was completed in 4 h. The remaining seven subjects continued the experiment up to 5 h. FS decreased with time, and a significant reduction was observed between before and the end of image interpretation. Seven out of nine subjects showed a minimum [oxy-Hb] change at the end of prolonged image interpretation. The mean change of [oxy-Hb] at the end of all nine subjects was significantly less than the maximum during image interpretation.

Conclusion

fNIRS using the change of [oxy-Hb] may be useful for monitoring fatigue in radiologists during image interpretation.
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Metadaten
Titel
Monitoring of fatigue in radiologists during prolonged image interpretation using fNIRS
verfasst von
Takashi Nihashi
Takeo Ishigaki
Hiroko Satake
Shinji Ito
Osamu Kaii
Yoshine Mori
Kazuhiro Shimamoto
Hiromichi Fukushima
Kojiro Suzuki
Hiroyasu Umakoshi
Mitsuo Ohashi
Fumio Kawaguchi
Shinji Naganawa
Publikationsdatum
19.03.2019
Verlag
Springer Japan
Erschienen in
Japanese Journal of Radiology / Ausgabe 6/2019
Print ISSN: 1867-1071
Elektronische ISSN: 1867-108X
DOI
https://doi.org/10.1007/s11604-019-00826-2

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