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  • Title: High-contrast mammography with a moving grid: assessment of clinical utility.
    Author: Sickles EA, Weber WN.
    Journal: AJR Am J Roentgenol; 1986 Jun; 146(6):1137-9. PubMed ID: 3518365.
    Abstract:
    Mammography techniques using moving grids produce superior breast images in many patients but result in increased radiation dose. This prospective controlled study of 1000 unselected screen-film mammography patients identifies a subset of women who are most likely to benefit from higher-dose grid-assisted techniques. In approximately 60% of the patients, the increased contrast of grid films produced a noticeable improvement in overall image quality. In only 20% of cases did this translate into clinically useful information, however, usually resulting in an increased level of confidence in interpretation. In virtually all the cases in which grid images aided mammographic diagnosis, the patients were women having more than 50% dense fibroglandular tissue or compressed breast thickness greater than 6 cm (only 37% of the study population). We suggest that the use of grid techniques be restricted to patients with such dense or thick breasts, because only in these women can the increase in radiation dose be justified.
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