'In vivo' average glandular dose evaluation: One-to-one comparison between digital breast tomosynthesis and full-field digital mammography

Francesca Cavagnetto, Gianni Taccini, Raffaella Rosasco, Rossana Bampi, Massimo Calabrese, Alberto Tagliafico

Research output: Contribution to journalArticle


We analysed 300 patients X rayed with digital breast tomosynthesis (DBT), full-field digital mammography (FFDM) and 'COMBO' (single view both in FFDM and DBT in a single breast compression)-Hologic Selenia Dimension-W/Rh-Ag- Al: three different anode-filter combinations-automatic exposure control modalities. Examination parameter data collection (EPDC) and 'in vivo' dosimetry using metal oxide semiconductor field effect transistor (MOSFET) were utilised to determine and compare entrance skin air kerma (ESAK) and average glandular dose (AGD) from a radioprotection viewpoint in the DBT and COMBO modalities. MOSFET has been tested to be introduced in clinical routine. EPDC of DBT underlines increase in ESAK and AGD compared with FFDM( p <0.05). The mean percentage increasewas 34%(117 %) in ESAK and 46 % (116 %) in AGD. In the COMBO modality, the mean percentage increase in ESAK was 162 % (141 %) and in AGD was 202 % (161 %). Differences between MOSFET measurement and calculated values were 15 %. DBT increases ESAK and AGD, due to the 3D acquisition modality. MOSFET may be considered in DBTas a routine check.

Original languageEnglish
Article numbernct120
Pages (from-to)53-61
Number of pages9
JournalRadiation Protection Dosimetry
Issue number1
Publication statusPublished - Nov 2013


ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology
  • Radiation
  • Public Health, Environmental and Occupational Health

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