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Review
. 2018 Dec;62(6):747-757.
doi: 10.1111/1754-9485.12798. Epub 2018 Sep 10.

A review of factors influencing radiologists' visual search behaviour

Aarthi Ganesan  1 , Maram Alakhras  1 , Patrick C Brennan  1 , Claudia Mello-Thoms  1
Affiliations
Review

A review of factors influencing radiologists' visual search behaviour

Aarthi Ganesan et al. J Med Imaging Radiat Oncol. 2018 Dec.

Abstract

This narrative literature review aims to identify the various factors that have significant impact on radiologists' visual search patterns. Identifying the factors that influences readers' visual search behaviour helps to understand their perception and interpretation of medical images, which in turn could lead to the development and implementation of effective strategies that could aid in improving the ability to detect abnormalities. Databases including PubMed, MedLine, Web of Science and ScienceDirect were searched using terms 'visual search', 'eye-tracking', 'radiology OR radiography', 'mammogram OR mammography' published since the early 1960s until June 30, 2016. Some of the factors that have been identified to significantly influence radiologists' visual search patterns were (i) readers' expertise, (ii) Satisfaction of Search, (iii) readers' visual fatigue, (iv) readers' confidence in reporting abnormalities, (v) training received and (vi) readers' prior knowledge. Readers' level of expertise was the factor that has been identified to have the most significant impact on their visual search pattern. Eye-tracking studies have shown the differences in visual search patterns of readers with different levels of experience and not so surprisingly, more experienced readers have shown effective visual search strategies. Readers' expertise has also been found to have significant impact in their confidence in reporting abnormalities and their ability to discriminate lesions from background structures in medical images.

Keywords: breast cancer; mammogram; mammography; radiologists; visual Search.

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