The Effect of Breast Size and Density in Turkish Women on Radiation Dose in Full-Field Digital Mammography

Background: Synthesized 2D mammography (SM) has been invented to help lower the radiation dose by circumventing the need for acquiring full-field digital mammography (FFDM) when digital breast tomosynthesis (DBT) is performed. Prior studies have compared microcalcifications detection and characterization in FFDM with SM or with DBT alone. Only few studies have compared DBT plus SM and DBT plus FFDM. Objective: To determine the performance of DBT with SM versus DBT with FFDM in detection and characterization of microcalcifications. Materials and Methods: Three hundred three paired examinations of 2D plus DBT images in the same session were performed. Fifty-five biopsyproven malignancy, 198 biopsy-proven benign microcalcifications, and 50 randomly selected negative screening studies were retrospectively reviewed by two radiologists. Comparison of sensitivity and specificity between the two modalities were performed. Results: From the 55 malignant microcalcifications, three cases were missed by DBT with FFDM but detected and correctly categorized as malignant by DBT with SM. Only one case of malignant microcalcifications was not detected by DBT with SM, and the present case was also miscategorized as benign by DBT with FFDM. There were no statistically significant differences in both detections (p=0.42), and characterization (p=0.65) of microcalcification between both modalities. In DBT with SM, the sensitivity was higher, and the specificity was lower for both detection and characterization of microcalcification when compared to DBT with FFDM. Conclusion: DBT in combination with SM is comparable to DBT in combination with FFDM for detection and characterization of microcalcifications. Keywords: Synthesized 2D mammography; Full-field digital mammography; Digital breast tomosynthesis; Microcalcifications detection and characterization

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Comparison of radiation dose between contrast enhanced mammography (CEM), full-field digital mammography (FFDM) and digital breast tomosynthesis (DBT).

10.26226/morressier.61371d12842293c031b57261 ◽

2021 ◽

Author(s):

Inés Suñén ◽

CARMEN GARCIA MUR

Keyword(s):

Radiation Dose ◽

Digital Mammography ◽

Digital Breast Tomosynthesis ◽

Breast Tomosynthesis ◽

Full Field ◽

Full Field Digital Mammography ◽

Contrast Enhanced

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Comparison of two full field digital mammography systems: Image quality and radiation dose

10.1063/1.5048169 ◽

2018 ◽

Author(s):

A. Merad ◽

S. Saadi ◽

N. Khelassi-Toutaoui

Keyword(s):

Image Quality ◽

Radiation Dose ◽

Digital Mammography ◽

Full Field ◽

Full Field Digital Mammography

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Screen-film versus full-field digital mammography: Radiation dose and image quality in a large teaching hospital

Nuclear Technology and Radiation Protection ◽

10.2298/ntrp1304398s ◽

2013 ◽

Vol 28 (4) ◽

pp. 398-405

Author(s):

Tomislav Stantic ◽

Olivera Ciraj-Bjelac ◽

Sanja Stojanovic ◽

Marijana Basta-Nikolic ◽

Danijela Arandjic ◽

...

Keyword(s):

Image Quality ◽

Radiation Dose ◽

Digital Mammography ◽

Quality Criteria ◽

Patient Dose ◽

Dose Assessment ◽

Clinical Image ◽

Full Field ◽

Mean Glandular Dose ◽

Full Field Digital Mammography

The objective of this paper is to measure the radiation dose and image quality in conventional screen-film mammography and full-field digital mammography in women referred to mammography examination. Participants underwent bilateral, two-view screen-film mammography or full-field digital mammography. The visibility of anatomical regions and overall clinical image quality was rated by experienced radiologists. Total of 387 women and 1548 mammograms were enrolled in the study. Image quality was assessed in terms of image quality score, whereas patient dose assessment was performed in terms of mean glandular dose. Average mean glandular dose for cranio-caudal projection was 1.5 mGy and 2.1 mGy in full-field digital mammography and screen-film mammography, respectively. For medio-lateral oblique projection, corresponding values were 2.3 and 2.1 mGy. Overall image quality criteria scoring was 0.82 and 0.99 for screen-film and digital systems, respectively. The scores were in the range from 0.11 to 1.0 for different anatomical structures. Overall, full-field digital mammography was superior both in terms of image quality and dose over the screen-film mammography. The results have indicated that phantom dose values can assist in setting the optimisation activities in mammography and for comparison between mammography units. To obtain accurate diagnostic information with an acceptable radiation dose to breast, it is necessary to periodically perform patient dose and image quality surveys in all mammography units.

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Trade-off between breast mean glandular dose and image quality in digital and conventional mammogram systems: A multicenter study

Radioprotection ◽

10.1051/radiopro/2021017 ◽

2021 ◽

Author(s):

J. Rezapour ◽

A. Mostear ◽

A. Tarighatnia ◽

F. Falahati ◽

S.M. Hosseini ◽

...

Keyword(s):

Image Quality ◽

Digital Mammography ◽

Statistical Tests ◽

Wilcoxon Test ◽

Breast Size ◽

Trade Off ◽

Full Field ◽

Mean Glandular Dose ◽

European Guidelines ◽

Full Field Digital Mammography

Evaluating the patient dose or exposure parameters considering the image quality can improve the chances of accurate diagnosis and reduce the unnecessary exposures from medical devices such as mammography. This study aimed to evaluate digital and conventional mammography machines while considering the trade-off between image quality and mean glandular dose (MGD) using a phantom. In the present study, one full-field digital mammography (FFDM) and two film-screen mammography (FSM) machines were investigated. The MGD values and image quality were assessed using the American College of Radiology (ACR) phantom at various mAs and constant kVp values. The results were obtained and compared with European guidelines. Friedman and Wilcoxon statistical tests were used to show the comparison. The results from the quality control (QC) tests demonstrated that all machines are functioning well. The best image quality in the digital mammography machine was observed at the MGD of 1.8 mGy and 55 mAs. In addition, the two conventional machines had the best image quality regarding the imaging of the ACR phantom at 65 mAs with an MGD of 2.1 mGy. These values were considered as appropriate values for the studied mammography systems. Furthermore, the Friedman test demonstrated that there are significant differences between the measured image quality values obtained from the different machines (p < 0.05), however, according to the Wilcoxon test there were not any significant differences between the conventional machines at various mAs values. Owing to the results, for a medium breast size, the image quality will not be improved with increasing the exposure after a specified MGD corresponds to a certain mAs. It is notable that this value is smaller in digital mammography system at a reasonably low dose.

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