Conformance of mean glandular dose from phantom and patient data in mammography

Anna Kelaranta, Paula Toroi, Marjut Timonen, Soile Komssi, Mika Kortesniemi

Research output: Contribution to journalArticleScientificpeer-review


In mammography dosimetry, phantoms are often used to represent breast tissue. The conformance of phantom- and patient-based mean glandular dose (MGD) estimates was evaluated mainly from the aspect of diagnostic reference levels. Patient and phantom exposure data were collected for eight diagnostic and three screening mammography devices. More extensive assessments were performed for two devices. The average breast thickness was close to the nationally used reference of 50 mm in diagnostic (50 mm, SD = 13 mm, n = 5342) and screening (47 mm, SD = 13 mm, n = 395) examinations. The average MGD for all breasts differed by 2 % from the MGD determined for breasts in the limited compressed thickness range of 40-60 mm. The difference between phantom- and patient-based MGD estimations was up to 30 %. Therefore, phantom measurements cannot replace patient dose data in MGD determination.
Original languageEnglish
JournalRadiation Protection Dosimetry
Issue number3
Pages (from-to)342-353
Number of pages12
Publication statusPublished - 11 Aug 2014
MoE publication typeA1 Journal article-refereed

Fields of Science

  • 3126 Surgery, anesthesiology, intensive care, radiology
  • 114 Physical sciences

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