Breast characterstics and dosimetric data in Xray mammography - a large sample survey - IMT - Institut Mines-Télécom Access content directly
Conference Papers Year : 2012

Breast characterstics and dosimetric data in Xray mammography - a large sample survey


Average Glandular Dose (AGD) is the quantity generally accepted for dose monitoring of X ray mammographic examinations. A survey of breast characteristics (compressed breast thickness, peak breast density) and AGD values was carried out on a database describing the acquisition conditions of 147,487 routine mammographic images acquired in Europe, North America and Asia-Pacific on GE Healthcare Senographe DS and Essential mammographic equipment. These systems compute the breast density in the densest part of the image and the related AGD using normalized glandular dose values interpolated from published tables. The correlation between peak breast density and compressed breast thickness was determined for the different geographical zones, as well as the distributions of the AGD. Breasts in Asia-Pacific were on average significantly thinner and denser than in Europe and North America. Breasts in North America were on average significantly thicker and denser than in Europe. The average AGD per image was 1.42mGy in North America and Asia-Pacific, and 1.48mGy in Europe. We computed the difference in AGD values between an individual density correction factor based on the peak breast density and a population-averaged density correction factor, as routinely used for dosimetry surveys in Europe. The resulting collective AGD values derived from the two distributions were similar (difference <5%), while the individual AGD values differed by up to 30%. Breast dosimetry can be improved by replacing the population-averaged breast density by the individual volumetric breast density.

Fichier principal
Vignette du fichier
7_GEERAERT_et_al_Breast_characteristics_and_dosimetric_data_in_X-ray_mammography_large_sample_survey.pdf (306.15 Ko) Télécharger le fichier
Origin Files produced by the author(s)

Dates and versions

hal-00843361 , version 1 (11-07-2013)


  • HAL Id : hal-00843361 , version 1


N. Geeraert, R. Klaus, S. Muller, Isabelle Bloch, H. Bosmans. Breast characterstics and dosimetric data in Xray mammography - a large sample survey. International Conference on Radiation Protection in Medicine - Setting the Scene for the Next Decade, Dec 2012, Bonn, Germany. pp.15. ⟨hal-00843361⟩
299 View
382 Download


Gmail Mastodon Facebook X LinkedIn More