Dose comparison of mammography with two photographic modes
10.3760/cma.j.cn112271-20221227-00502
- VernacularTitle:两种摄影模式下的乳腺X射线摄影的剂量比较
- Author:
Yanhui LU
1
;
Jun LI
;
Chunyan LUO
;
Changqun CHEN
;
Wei ZHAO
;
Jun LUO
Author Information
1. 昆明医科大学第一附属医院医学影像科，昆明 650032
- Keywords:
Digital breast tomosynthesis;
Full-field digital mammography;
Average glandular dose;
Breast density;
Compression thickness
- From:
Chinese Journal of Radiological Medicine and Protection
2023;43(6):475-482
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To compare radiation dose between digital breast tomosynthesis (DBT) and full-field digital mammography (FFDM), and explore the correlation of average glandular dose(AGD) with breast density and compression thickness.Methods:The mammographic data of patients with breast diseases who underwent digital breast tomosynthesis (DBT) and the population who underwent full-field digital mammography (FFDM) screening in the First Affiliated Hospital of Kunming Medical University from October 2020 to May 2022 were retrospectively collected. The compression thickness, compression force and AGD were recorded. According to the 2013 ACR BI-RADS MAMMOGRAPHY, the breast gland density was classified into 4 types: a(glandular tissue<25%), b(glandular tissue 25%~50%), c(glandular tissue 50%~75%) and d(glandular tissue >75%), by two senior doctors engaged in breast imaging diagnosis. The relationships between different gland densities, different compression thicknesses and AGD under FFDM and DBT mode were analyzed.Results:In both FFDM and DBT modes, the AGD increased significantly with the increase of breast density( F=861.63, 617.83, 330.33, 451.45, 290.47, P<0.001), and AGD a
