A Comparative Research in Medical Image Visual Searching of Novice, Proficient and Expert Radiologists: Evidence from Eye Movement

DOI

10.2991/icoss-17.2017.3How to use a DOI?

Keywords

Radiologist; Expertise; Medical image; Visual search; False-negative rate; Eye movement

Abstract

This article is to discuss the radiologist' fixation characteristics and processing strategies in medical image searching, and to find out the expert advantages and characteristics, in order to provide theoretical basis for improving the ability of novice and proficient radiologist. SMI250 eye tracker was used to record participants' eye movements on the X-ray film of chest. Fifty subjects were divided into three groups: 17 experts,17 proficient and 16 novices. Eye movement was observed and analyzed, The c2 or t test were used for statistical analysis. The results showed that false negative rate (FNR) of experts was lower than that of proficient or novices. There are more types of simple -mode scan pattern in the expert group than in the proficient or novice (P<0.05). Besides, experts exhibited a number of characteristics associated with efficient scan paths, including fewer fixation counts, less total fixation duration, longer saccadic amplitude, faster in arriving at the nodule. For conclusion, compared with novices and proficient, expert radiologist can find out the target quickly and accurately, showing superior perceptual advantage. Experts tended to make decision-making error, while the novice tended to scanning-error and proficient to recognition-error.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Meixiang Chen
AU  - Shaoyin Duan
AU  - Xuejun Bai
PY  - 2017/04
DA  - 2017/04
TI  - A Comparative Research in Medical Image Visual Searching of Novice, Proficient and Expert Radiologists: Evidence from Eye Movement
BT  - Proceedings of the 2017 International Conference on Society Science (ICoSS 2017)
PB  - Atlantis Press
SP  - 13
EP  - 20
SN  - 2352-5398
UR  - https://doi.org/10.2991/icoss-17.2017.3
DO  - 10.2991/icoss-17.2017.3
ID  - Chen2017/04
ER  -