Searching for bone fractures: A comparison with pulmonary nodule search

Chartene H. Hu, Harold L. Kundel, Calvin F. Nodine, Elizabeth A. Krupinski, Lawrence C. Toto

Research output: Contribution to journalArticle

53 Scopus citations

Abstract

Rationale and Objectives. We aimed to determine if the characteristics and principles of visual search described for the detection of pulmonary nodules apply to extremity fractures. Methods.: The eye positions of staff orthopedic radiologists, radiology residents, and medical students were monitored as they searched hand and wrist X-ray images for fractures and a chest image for nodules. Results.: More systematic scanning patterns were observed for experienced observers than inexperienced observers. Positive decisions for bone durations were significantly longer for false-negative versus true-negative decisions. Intercluster jump distances were found to be greater for chest images than bone iamges. Conclusions.: A search for bone fractures can be qualitatively characterized by classifying observer scan paths, dwell times, and jump distances. Gaze duration can be a useful predictor of bone image locations containing potential missed fractures. Perceptual feedback could aid observers in the detection of inconspicuous fractures.

Original languageEnglish (US)
Pages (from-to)25-32
Number of pages8
JournalAcademic radiology
Volume1
Issue number1
DOIs
StatePublished - Sep 1994

Keywords

  • Visual search
  • bone fractures
  • detection and decision making
  • eye-position monitoring

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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