Monte Carlo dose evaluation of different fibroglandular tissue distribution in breast imaging

L. M. Arana Peña; C. Fedon; E. García; O. Diaz; R. Longo; D. R. Dance; I. Sechopoulos

doi:10.1117/12.2564278

22 May 2020 Monte Carlo dose evaluation of different fibroglandular tissue distribution in breast imaging

L. M. Arana Peña, C. Fedon, E. García, O. Diaz, R. Longo, D. R. Dance, I. Sechopoulos

Proceedings Volume 11513, 15th International Workshop on Breast Imaging (IWBI2020); 115130G (2020) https://doi.org/10.1117/12.2564278
Event: Fifteenth International Workshop on Breast Imaging, 2020, Leuven, Belgium

Abstract

This work compares estimates of the radiation dose in mammography obtained using three different fibroglandular tissue distributions. Ninety volumetric images of patient breasts were acquired with a dedicated breast CT system and the voxels automatically classified as containing skin, adipose, or glandular tissue. The classified images underwent simulated mechanical compression to mimic the mammographic cranio-caudal acquisition. The voxels containing fibroglandular and adipose tissue were then distributed in the breast phantoms following three different methods: patient-based (i.e., maintaining the original distribution), homogeneous (i.e., each voxel is a homogeneous mixture of adipose and glandular tissue) and newly-proposed continuous (i.e., the glandular tissue is distributed according to a general model, derived from the patient breast CT data). All breast phantoms were used in Monte Carlo simulations to estimate the radiation dose. The results show that the doses estimated using the continuous fibroglandular tissue distribution agree within 3% of the doses estimated using the heterogeneous patient-based distribution, and that it leads to a dose reduction of 27% compared to the homogeneous distribution.

Citation Download Citation

L. M. Arana Peña, C. Fedon, E. García, O. Diaz, R. Longo, D. R. Dance, and I. Sechopoulos "Monte Carlo dose evaluation of different fibroglandular tissue distribution in breast imaging", Proc. SPIE 11513, 15th International Workshop on Breast Imaging (IWBI2020), 115130G (22 May 2020); https://doi.org/10.1117/12.2564278

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available