Radiation doses received in the United Kingdom breast screening programme in 2010 to 2012

Young, Kenneth C.; Oduko, Jennifer M.

doi:10.1259/bjr.20150831

Cited by 38 publications

(49 citation statements)

References 14 publications

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“…Literature data indicate that mean MGD values for DR systems are about 32% lower than for SF systems, and those for CR systems are close to the values for SF systems [12]. Young et al showed that MGD values for DR systems were lower by 25% than those for SF systems [13]. Similar results have been shown by Hendrik et al [14].…”

Section: Resultssupporting

confidence: 59%

Mean glandular dose values used for the mammography screening program in Poland according to the type of image registration system

Fabiszewska

Pasicz²,

Grabska³

2017

Nowotwory. Journal of Oncology

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there have been considerable changes in the use of different types of detector systems at mammography facilities undertaking screening programs in Poland. The use of screen-film systems (termed SF systems) has largely decreased and been replaced by either computed radiography (termed CR systems) or digital radiography systems (termed DR systems); this inevitably affecting mean glandular dose values. The study aim was to evaluate changes of mean glandular dose values for a dose exposure of 4.5 cm (MGD 4,5cmPMMA ) achieved by using different image detectors. The study consisted of analysing 1499 protocols for quality control tests carried out by medical physicists at 16 Regional Coordination Offices in 2007, 2011, 2012 and 2013. The mean CR system values were higher than for SF systems; by 25% in 2011, by 26% in 2012, and by 28% in 2013. In subsequent years, the MGD 4,5cmPMMA mean values for DR systems were higher than for SF systems by respectively 15%, 4% and 5%. Also in the subsequent years, the MGD 4,5cmPMMA mean values for CR systems were higher than for DR systems by respectively 13%, 23% and 24%. In all cases, the MGD 4,5cmPMMA mean values were within the acceptable level of 2.5 mGy. The MGD 4,5cmPMMA mean values were different, depending on the detection system used for mammography screening in Poland. NOWOTWORY J Oncol 2017; 67, 2: 115-120

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Section: Resultssupporting

confidence: 59%

Mean glandular dose values used for the mammography screening program in Poland according to the type of image registration system

Fabiszewska

Pasicz²,

Grabska³

2017

Nowotwory. Journal of Oncology

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“…Figure 17 shows the variation of the MGD for standard mammography with breast thickness based on a large United Kingdom survey of data from 419 X-ray sets over the period 2010–2012 (Young and Oduko, 2016). The data illustrate well the decrease in dose when changing from screen-film to DR systems, and that the dose for the CR systems included in the survey was higher than that for screen-film.…”

Section: Results Of Breast Dose Measurementmentioning

confidence: 99%

Dosimetry in x-ray-based breast imaging

2016

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The estimation of the mean glandular dose to the breast (MGD) for x-ray based imaging modalities forms an essential part of quality control and is needed for risk estimation and for system design and optimisation. This review considers the development of methods for estimating the MGD for mammography, digital breast tomosynthesis (DBT) and dedicated breast CT (DBCT). Almost all of the methodology used employs Monte Carlo calculated conversion factors to relate the measurable quantity, generally the incident air kerma, to the MGD. After a review of the size and composition of the female breast, the various mathematical models used are discussed, with particular emphasis on models for mammography. These range from simple geometrical shapes, to the more recent complex models based on patient DBCT examinations. The possibility of patient-specific dose estimates is considered as well as special diagnostic views and the effect of breast implants. Calculations using the complex models show that the MGD for mammography is overestimated by about 30% when the simple models are used. The design and uses of breast-simulating test phantoms for measuring incident air kerma are outlined and comparisons made between patient and phantom-based dose estimates. The most widely used national and international dosimetry protocols for mammography are based on different simple geometrical models of the breast, and harmonisation of these protocols using more complex breast models is desirable.

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“…Regarding radiation dose, studies have reported increased radiation dose with increased compressed breast thickness. [27][28][29] Further, the compression force might influence reattendance. 5,6 However, subsequent reattendance is complex and is affected by several factors rather than simply the level of pain experienced during the screening examination.…”

Section: Discussionmentioning

confidence: 99%

Compression forces used in the Norwegian Breast Cancer Screening Program

Waade

Moshina

Sebuødegård

et al. 2017

The British Journal of Radiology

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Objective: Compression is used in mammography to reduce breast thickness, which is claimed to improve image quality and reduce radiation dose. In the Norwegian Breast Cancer Screening Program (NBCSP), the recommended range of compression force for full-field digital mammography (FFDM) is 11-18 kg (108-177 N). This is the first study to investigate the compression force used in the programme. Methods: The study included information from 17,951 randomly selected females screened with FFDM at 14 breast centres in the NBCSP, during January-March 2014. We investigated the applied compression force on the left breast in craniocaudal and mediolateral oblique views for breast centres, mammography machines within the breast centres and for the radiographers. Results: The mean compression force for all mammograms in the study was 116 N and ranged from 91 N to 147 N between the breast centres. The variation in compression force was wider between the breast centres than that between mammography machines (range 137-155 N) and radiographers (95-143 N) within one breast centre. Approximately 59% of the mammograms in the study complied with the recommended range of compression force. Conclusion: A wide variation in applied compression force was observed between the breast centres in the NBCSP. This variation indicates a need for evidencebased recommendations for compression force aimed at optimizing the image quality and individualizing breast compression. Advances in knowledge: There was a wide variation in applied compression force between the breast centres in the NBCSP. The variation was wider between the breast centres than that between mammography machines and radiographers within one breast centre.

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Radiation doses received in the United Kingdom breast screening programme in 2010 to 2012

Abstract: Changes in the radiation dose in breast screening over time have been determined. Specifically, the impact on radiation dose of introducing different types of DR and computed radiography system into breast screening has been quantified.

Cited by 38 publications

References 14 publications

Mean glandular dose values used for the mammography screening program in Poland according to the type of image registration system

Mean glandular dose values used for the mammography screening program in Poland according to the type of image registration system

Dosimetry in x-ray-based breast imaging

Compression forces used in the Norwegian Breast Cancer Screening Program

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