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U.S. Department of Health and Human Services

Radiation-Emitting Products

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What is Small Field Digital Mammography (SFDM) and is it a mammographic modality?

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Small Field Digital Mammography (SFDM) refers to the use of a small digital image receptor (usually an add-on component to a film-screen system) to produce mammographic images. Because this small receptor cannot image the entire breast, it cannot generally be used for screening examinations and in almost all cases is limited to only a portion of the breast for either interventional or diagnostic purposes. When used for diagnostic purposes, SFDM is considered a subpart of the Full Field Digital Mammography (FFDM) mammographic modality. (See Question 6 below)

Back to Mammographic Modality (Definition)