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Performance changes in lung nodule detection following perceptual feedback of eye movements.

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNChapter

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Performance changes in lung nodule detection following perceptual feedback of eye movements. / Donovan, T.; Manning, D.J.; Crawford, Trevor J.

Medical Imaging 2008: Image Perception, Observer Performance, and Technology Assessment. ed. / Berkman Sahiner; David J. Manning. 6917. ed. USA : SPIE, 2008. p. 691703 (Proceedings of the SPIE).

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNChapter

Harvard

Donovan, T, Manning, DJ & Crawford, TJ 2008, Performance changes in lung nodule detection following perceptual feedback of eye movements. in B Sahiner & DJ Manning (eds), Medical Imaging 2008: Image Perception, Observer Performance, and Technology Assessment. 6917 edn, Proceedings of the SPIE, SPIE, USA, pp. 691703. https://doi.org/10.1117/12.768503

APA

Donovan, T., Manning, D. J., & Crawford, T. J. (2008). Performance changes in lung nodule detection following perceptual feedback of eye movements. In B. Sahiner, & D. J. Manning (Eds.), Medical Imaging 2008: Image Perception, Observer Performance, and Technology Assessment (6917 ed., pp. 691703). (Proceedings of the SPIE). SPIE. https://doi.org/10.1117/12.768503

Vancouver

Donovan T, Manning DJ, Crawford TJ. Performance changes in lung nodule detection following perceptual feedback of eye movements. In Sahiner B, Manning DJ, editors, Medical Imaging 2008: Image Perception, Observer Performance, and Technology Assessment. 6917 ed. USA: SPIE. 2008. p. 691703. (Proceedings of the SPIE). https://doi.org/10.1117/12.768503

Author

Donovan, T. ; Manning, D.J. ; Crawford, Trevor J. / Performance changes in lung nodule detection following perceptual feedback of eye movements. Medical Imaging 2008: Image Perception, Observer Performance, and Technology Assessment. editor / Berkman Sahiner ; David J. Manning. 6917. ed. USA : SPIE, 2008. pp. 691703 (Proceedings of the SPIE).

Bibtex

@inbook{b55d0d2d341941bd9f6df7b4a02b05bd,
title = "Performance changes in lung nodule detection following perceptual feedback of eye movements.",
abstract = "In a previously reported study we demonstrated that expert performance can decline following perceptual feedback of eye movements in the relatively simple radiological task of wrist fracture detection [1]. This study was carried out to determine if the same effect could be observed using a more complicated radiological task of identifying lung nodules on chest radiographs. Four groups (n=10 in each group) of observers with different levels of expertise were tested. The groups were na{\"i}ve observers, level 1 radiography students, level 2 radiography students and experts. Feedback was presented to the observers in the form of their scan paths and fixations. Half the observers had feedback and half had no perceptual feedback. JAFROC analysis was used to measure observer performance. A repeated measures ANOVA was carried out. There was no significant effect between the pre and post “no feedback” condition. There was a significant difference between the pre and post “feedback” condition with a significant improvement following feedback (F(1,16)=6.6,p = 0.021). Overall the mean percentage improvement was small of 3.3%, with most of the improvement due to the level 1 group where the percentage increase in the figure of merit (FOM) was 8.4% and this was significant (p<0.05). Eye tracking metrics indicate that the expert and na{\"i}ve observers were less affected by feedback or a second look whereas there were mixed results between the level 1 and level 2 students possibly reflecting the different search strategies used. Perceptual feedback may be beneficial for those early in their training.",
keywords = "perceptual feedback, expertise, eye-tracking, lung nodule detection",
author = "T. Donovan and D.J. Manning and Crawford, {Trevor J.}",
year = "2008",
month = mar,
day = "5",
doi = "10.1117/12.768503",
language = "English",
series = "Proceedings of the SPIE",
publisher = "SPIE",
pages = "691703",
editor = "Berkman Sahiner and Manning, {David J.}",
booktitle = "Medical Imaging 2008: Image Perception, Observer Performance, and Technology Assessment",
edition = "6917",

}

RIS

TY - CHAP

T1 - Performance changes in lung nodule detection following perceptual feedback of eye movements.

AU - Donovan, T.

AU - Manning, D.J.

AU - Crawford, Trevor J.

PY - 2008/3/5

Y1 - 2008/3/5

N2 - In a previously reported study we demonstrated that expert performance can decline following perceptual feedback of eye movements in the relatively simple radiological task of wrist fracture detection [1]. This study was carried out to determine if the same effect could be observed using a more complicated radiological task of identifying lung nodules on chest radiographs. Four groups (n=10 in each group) of observers with different levels of expertise were tested. The groups were naïve observers, level 1 radiography students, level 2 radiography students and experts. Feedback was presented to the observers in the form of their scan paths and fixations. Half the observers had feedback and half had no perceptual feedback. JAFROC analysis was used to measure observer performance. A repeated measures ANOVA was carried out. There was no significant effect between the pre and post “no feedback” condition. There was a significant difference between the pre and post “feedback” condition with a significant improvement following feedback (F(1,16)=6.6,p = 0.021). Overall the mean percentage improvement was small of 3.3%, with most of the improvement due to the level 1 group where the percentage increase in the figure of merit (FOM) was 8.4% and this was significant (p<0.05). Eye tracking metrics indicate that the expert and naïve observers were less affected by feedback or a second look whereas there were mixed results between the level 1 and level 2 students possibly reflecting the different search strategies used. Perceptual feedback may be beneficial for those early in their training.

AB - In a previously reported study we demonstrated that expert performance can decline following perceptual feedback of eye movements in the relatively simple radiological task of wrist fracture detection [1]. This study was carried out to determine if the same effect could be observed using a more complicated radiological task of identifying lung nodules on chest radiographs. Four groups (n=10 in each group) of observers with different levels of expertise were tested. The groups were naïve observers, level 1 radiography students, level 2 radiography students and experts. Feedback was presented to the observers in the form of their scan paths and fixations. Half the observers had feedback and half had no perceptual feedback. JAFROC analysis was used to measure observer performance. A repeated measures ANOVA was carried out. There was no significant effect between the pre and post “no feedback” condition. There was a significant difference between the pre and post “feedback” condition with a significant improvement following feedback (F(1,16)=6.6,p = 0.021). Overall the mean percentage improvement was small of 3.3%, with most of the improvement due to the level 1 group where the percentage increase in the figure of merit (FOM) was 8.4% and this was significant (p<0.05). Eye tracking metrics indicate that the expert and naïve observers were less affected by feedback or a second look whereas there were mixed results between the level 1 and level 2 students possibly reflecting the different search strategies used. Perceptual feedback may be beneficial for those early in their training.

KW - perceptual feedback

KW - expertise

KW - eye-tracking

KW - lung nodule detection

U2 - 10.1117/12.768503

DO - 10.1117/12.768503

M3 - Chapter

T3 - Proceedings of the SPIE

SP - 691703

BT - Medical Imaging 2008: Image Perception, Observer Performance, and Technology Assessment

A2 - Sahiner, Berkman

A2 - Manning, David J.

PB - SPIE

CY - USA

ER -