How mammographic breast density affects radiologists' visual search patterns.
Acad Radiol
; 21(11): 1386-93, 2014 Nov.
Article
en En
| MEDLINE
| ID: mdl-25172414
ABSTRACT
RATIONALE AND OBJECTIVES:
To determine the impact of mammographic breast density on the visual search process of radiologists when reading digital mammograms. MATERIALS ANDMETHODS:
Institutional review board approval was obtained. A set of 149 craniocaudal digital mammograms were read by seven radiologists, and observer search patterns were recorded. Total time examining each case, time to first hit the lesion, dwell time, and number of hits per area were calculated. The nonparametric Mann-Whitney U test was used for statistical evaluation.RESULTS:
In both low- and high-mammographic density cases, significant increases were observed in the time to first hit lesions when they were located outside, compared to overlying fibroglandular dense tissue (P = .001). Significantly longer dwell time (P = .003) and greater number of fixations (P = .0003) were observed when the lesions were situated within--rather than outside--the dense fibroglandular tissue.CONCLUSIONS:
Increased mammographic breast density changes radiologists' visual search patterns. Dense areas of the parenchyma attracted greater visual attention in both high- and low-mammographic density cases, resulting in faster detection of lesions overlying the fibroglandular dense tissue, along with longer dwell times and greater number of fixations, as compared to lesions located outside the dense fibroglandular regions.Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Competencia Profesional
/
Algoritmos
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Neoplasias de la Mama
/
Mamografía
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Interpretación de Imagen Radiográfica Asistida por Computador
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Intensificación de Imagen Radiográfica
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Absorciometría de Fotón
Tipo de estudio:
Diagnostic_studies
País/Región como asunto:
Oceania
Idioma:
En
Revista:
Acad Radiol
Asunto de la revista:
RADIOLOGIA
Año:
2014
Tipo del documento:
Article