Aims and objectives
Background Clinical evidence about benefits of using digital breast tomosynthesis (DBT) in screening application has been mainly obtained comparing clinical performance of standard mammography alone (FFDM) with the combinations of DBT and FFDM [ 1 , 2 , 3 ].
This means that most of the screening DBT studies included the acquisition of both DBT and FFDM examinations in two views (cranio-caudal – CC,
and medio-lateral oblique – MLO),
with the consequent increase of radiation dose compared...
Methods and materials
Study population and breast imaging 1171 consecutive women were taken from the STORM-2 screening trial aiming to compare clinical performance of FFDM vs.
the combination of DBT and FFDM.
For each view (cranio-caudal,
and medio-lateral oblique,
MLO) and breast (left and right),
both FFDM and DBT images were acquired with the same breast position and under the same compression force.
Single breast positioning for both FFDM and DBT guaranteed the same geometry and consequently the best...
Automatic Exposure Control Fig. 3 illustrates the automatic exposure control (AEC) operation for FFDM and DBT respectively,
showing how half value layer (HVL) and mAs are selected as a function of compressed breast thickness. It can be noticed that the AEC behaves differently with FFDM and with DBT: both HVL and mAs values increase as breast thickness increases,
but HVL increment is steeper for DBT compared to FFDM,
while the overall DBT mAs values are flatter than for FFDM,
Patient-specific MGD is significantly reduced when DBT is combined with synthetic mammography in place of standard mammography.
PhD Breast Radiology Unit,
Veneto Insititute of Oncology (IOV),
Bandos A I,
Gullien R et al (2013) Comparison of digital mammography alone and digital mammography plus tomosynthesis in a population-based screening program.
Radiology 267:47-56. Ciatto S,
Bernardi D (2013) Integration of 3D digital mammography with tomosynthesis for population breast-cancer screening (STORM): a prospective comparison study.
Lancet Oncol 14:583-589. Friedewald S M,
Rafferty E A,
Rose S L (2014) Breast cancer screening using tomosynthesis in combination...