Display options
Cite
Maeda E, Yoshikawa T, Nakashima R, et al. Experimental system for measurement of radiologists' performance by visual search task. Springerplus. 2013;2:607doi: 10.1186/2193-1801-2-607.
Maeda, E., Yoshikawa, T., Nakashima, R., Kobayashi, K., Yokosawa, K., Hayashi, N., Masutani, Y., Yoshioka, N., Akahane, M., & Ohtomo, K. (2013). Experimental system for measurement of radiologists' performance by visual search task. SpringerPlus, 2607. https://doi.org/10.1186/2193-1801-2-607
Maeda, Eriko, et al. "Experimental system for measurement of radiologists' performance by visual search task." SpringerPlus vol. 2 (2013): 607. doi: https://doi.org/10.1186/2193-1801-2-607
Maeda E, Yoshikawa T, Nakashima R, Kobayashi K, Yokosawa K, Hayashi N, Masutani Y, Yoshioka N, Akahane M, Ohtomo K. Experimental system for measurement of radiologists' performance by visual search task. Springerplus. 2013 Nov 14;2:607. doi: 10.1186/2193-1801-2-607. eCollection 2013. PMID: 24294550; PMCID: PMC3838537.
Copy Download .nbib Format: NLM
Share it on

Springerplus. 2013 Nov 14;2:607. doi: 10.1186/2193-1801-2-607. eCollection 2013.

Experimental system for measurement of radiologists' performance by visual search task.

SpringerPlus

Eriko Maeda, Takeharu Yoshikawa, Ryoichi Nakashima, Kazufumi Kobayashi, Kazuhiko Yokosawa, Naoto Hayashi, Yoshitaka Masutani, Naoki Yoshioka, Masaaki Akahane, Kuni Ohtomo

Affiliations

  1. Department of Radiology, Graduate School of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655 Japan.

PMID: 24294550 PMCID: PMC3838537 DOI: 10.1186/2193-1801-2-607

Abstract

PURPOSE: Detective performance of radiologists for "obvious" targets should be evaluated by visual search task instead of ROC analysis, but visual task have not been applied to radiology studies. The aim of this study was to set up an environment that allows visual search task in radiology, to evaluate its feasibility, and to preliminarily investigate the effect of career on the performance.

MATERIALS AND METHODS: In a darkroom, ten radiologists were asked to answer the type of lesion by pressing buttons, when images without lesions, with bulla, ground-glass nodule, and solid nodule were randomly presented on a display. Differences in accuracy and reaction times depending on board certification were investigated.

RESULTS: The visual search task was successfully and feasibly performed. Radiologists were found to have high sensitivity, specificity, positive predictive values and negative predictive values in non-board and board groups. Reaction time was under 1 second for all target types in both groups. Board radiologists were significantly faster in answering for bulla, but there were no significant differences for other targets and values.

CONCLUSION: We developed an experimental system that allows visual search experiment in radiology. Reaction time for detection of bulla was shortened with experience.

Keywords: Performance; Radiologist; Reaction time; Receiver operating characteristic analysis; Visual search task

References

  1. J Am Coll Radiol. 2006 Jun;3(6):402-8 - PubMed
  2. Radiology. 2003 Oct;229(1):3-8 - PubMed
  3. Spat Vis. 1997;10(4):443-6 - PubMed
  4. Semin Nucl Med. 1978 Oct;8(4):283-98 - PubMed
  5. J Exp Psychol Gen. 2007 Nov;136(4):623-38 - PubMed
  6. Nature. 2005 May 26;435(7041):439-40 - PubMed
  7. Psychol Sci. 2007 Nov;18(11):943-7 - PubMed
  8. Science. 1971 Mar 26;171(3977):1217-9 - PubMed
  9. Spat Vis. 1997;10(4):437-42 - PubMed
  10. Invest Radiol. 1990 May;25(5):583-6 - PubMed
  11. Radiology. 1982 Apr;143(1):29-36 - PubMed
  12. Invest Radiol. 1989 Mar;24(3):234-45 - PubMed
  13. Cogn Psychol. 1980 Jan;12(1):97-136 - PubMed
  14. Invest Radiol. 1989 Mar;24(3):228-33 - PubMed
  15. Front Psychol. 2013 Apr 05;4:166 - PubMed
  16. Curr Biol. 2010 Apr 27;20(8):R346-9 - PubMed

Publication Types