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Journal of Medical Imaging

Image toggling saves time in mammography
Author(s): Trafton Drew; Avi M. Aizenman; Matthew B. Thompson; Mark D. Kovacs; Michael Trambert; Murray A. Reicher; Jeremy M. Wolfe
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Paper Abstract

When two images are perfectly aligned, even subtle differences are readily detected when the images are “toggled” back and forth in the same location. However, substantial changes between two photographs can be missed if the images are misaligned (“change blindness”). Nevertheless, recent work from our lab, testing nonradiologists, suggests that toggling misaligned photographs leads to superior performance compared to side-by-side viewing (SBS). In order to determine if a benefit of toggling misaligned images may be observed in clinical mammography, we developed an image toggling technique where pairs of new and prior breast imaging exam images could be efficiently toggled back and forth. Twenty-three radiologists read 10 mammograms evenly divided in toggle and SBS modes. The toggle mode led to a 6-s benefit in reaching a decision [t(22)=5.11, p<.05]. The toggle viewing mode also led to a 5% improvement in diagnostic accuracy, though in our small sample this effect was not statistically reliable. Time savings were found even though successive mammograms were not perfectly aligned. Given the ever-increasing caseload for radiologists, this simple manipulation of how the images are viewed could save valuable time in clinical practice, allowing radiologists to read more cases or spend more time on difficult cases.

Paper Details

Date Published: 12 October 2015
PDF: 7 pages
J. Med. Imag. 3(1) 011003 doi: 10.1117/1.JMI.3.1.011003
Published in: Journal of Medical Imaging Volume 3, Issue 1
Show Author Affiliations
Trafton Drew, The Univ. of Utah (United States)
Avi M. Aizenman, Brigham and Women's Hospital (United States)
Matthew B. Thompson, Brigham and Women's Hospital (United States)
The Univ. of Queensland (Australia)
Mark D. Kovacs, Medical Univ. of South Carolina (United States)
Michael Trambert, Cottage Health System (United States)
The Sansum Clinic (United States)
Merge Healthcare (United States)
Murray A. Reicher, Merge Healthcare (United States)
Jeremy M. Wolfe, Brigham and Women’s Hospital (United States)
Harvard Medical School (United States)

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