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Study on the influence of breast thickness and breast glandularity on the mean glandular dose in tomosynthesis exams
Engler, Attie, Paixão, Nogueira
“This study aims to verify the relationship between compressed breast thickness (EMC) and the volumetric density of the breast (DVM) with the [mean glandular dose (DGM)], as well as the relationship between the EMC and the patient’s age with the MVD. The breast tomosynthesis images of 660 patients were analyzed using the Volpara software … The results show that EMC is the factor most related to the increase in DGM, while MVD is slightly more affected by the patient’s age than by EMC.”
Pressure-standardised mammography does not affect visibility, contrast and sharpness of stable lesions
de Groot, Hopman, van Lier, Branderhorst, Grimbergen, den Heeten
“Since the model for calculating mean glandular dose (Volpara Analytics) includes a compensation factor for the measured breast density [17], it is likely that breast atrophy explains the observed significant decrease in mean glandular dose.”
Technical Note: Validation of two methods to determine contact area between breast and compression paddle in mammography
Branderhorst, de Groot, van Lier, Highnam, den Heeten, Grimbergen
“The size of the contact area between the paddle and the breast can be determined accurately and precisely, both in real-time using the capacitive method, and retrospectively using image processing software. This result is beneficial for scientific research, data analysis and quality control systems that depend on one of these two methods for determining the average pressure on the breast during mammographic compression.”
Mammographic compression – A need for mechanical standardization
Branderhorst, de Groot, Highnam, Chan, Böhm, Broeders, den Heeten, Grimbergen
“All mammographic images were processed using VolparaAnalytics … and VolparaDensity … to obtain objective, device-independent estimates of breast volume, breast density, average glandular dose (AGD) and size of the contact area between the breast and the paddle.”
Development of a phantom to test fully automated breast density software – A work in progress
Waade, Hofvind, Thompson, Highnam, Hogg
“Our aim is to develop a deformable breast phantom to assess automated density software and the impact of breast thickness reduction on MD … Volpara recognized all deformable phantoms as female breasts.”
