Abstract

Twenty to thirty percent of all small lung tumors actually recorded in chest images are missed by radiologists. The source of these errors is in human perception and decision making. The long term objective of this program is to decrease observer error. A series of experiments is proposed to determine the role of peripheral and central vision in tumor detection and in the discrimination between tumor nodules and normal structures in the images. This will be studied by using a digital display that is coupled to eye position so that independent images can be presented to the foveal and peripheral vision in real time. The display will also be used to highlight selected areas of chest images during viewing. The effectiveness of this visual feedback in reducing error will be evaluated. ROC analysis will be used to quantify decision accuracy.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Cancer Institute (NCI)
Type
Research Project (R01)
Project #
5R01CA032870-05
Application #
3170737
Study Section
Diagnostic Radiology Study Section (RNM)
Project Start
1980-08-01
Project End
1987-03-31
Budget Start
1985-04-01
Budget End
1986-03-31
Support Year
5
Fiscal Year
1985
Total Cost
Indirect Cost

  Institution

Name
University of Pennsylvania
Department
Type
Schools of Medicine
DUNS #
042250712
City
Philadelphia
State
PA
Country
United States
Zip Code
19104

  Publications

Nodine, C F; Kundel, H L; Lauver, S C et al. (1996) Nature of expertise in searching mammograms for breast masses. Acad Radiol 3:1000-6
Samuel, S; Kundel, H L; Nodine, C F et al. (1995) Mechanism of satisfaction of search: eye position recordings in the reading of chest radiographs. Radiology 194:895-902
Hu, C H; Kundel, H L; Nodine, C F et al. (1994) Searching for bone fractures: a comparison with pulmonary nodule search. Acad Radiol 1:25-32
Krupinski, E A; Nodine, C F; Kundel, H L (1993) A perceptually based method for enhancing pulmonary nodule recognition. Invest Radiol 28:289-94
Krupinski, E A; Nodine, C F; Kundel, H L (1993) Perceptual enhancement of tumor targets in chest X-ray images. Percept Psychophys 53:519-26
Nodine, C F; Krupinski, E A; Kundel, H L et al. (1992) Satisfaction of search (SOS) Invest Radiol 27:571-3
Kundel, H L; Nodine, C F; Toto, L (1991) Searching for lung nodules. The guidance of visual scanning. Invest Radiol 26:777-81
Kundel, H L; Nodine, C F; Krupinski, E A (1990) Computer-displayed eye position as a visual aid to pulmonary nodule interpretation. Invest Radiol 25:890-6
Kundel, H L; Nodine, C F; Krupinski, E A (1989) Searching for lung nodules. Visual dwell indicates locations of false-positive and false-negative decisions. Invest Radiol 24:472-8
Kundel, H L; Nodine, C F; Thickman, D et al. (1987) Searching for lung nodules. A comparison of human performance with random and systematic scanning models. Invest Radiol 22:417-22

Showing the most recent 10 out of 12 publications