Technical Note: Validation of two methods to determine contact area between breast and compression paddle in mammography

Branderhorst, Woutjan; Groot, Jerry E. de; Lier, Monique G.J.T.B. van; Highnam, Ralph; Heeten, Gerard J. den; Grimbergen, C.A.

doi:10.1002/mp.12392

Cited by 11 publications

(14 citation statements)

References 15 publications

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“…The retained articles consisted of a mixture of quantitative study methods. There were six prospective 8,9,14,20–22 and eleven retrospective studies, 1,6,7,10,12,13,15–17,23,24 with one case–control study 5 . Publication dates ranged from 2004 to 2019, with the last publication being a 2019 retrospective cohort study 24 .…”

Section: Resultsmentioning

confidence: 99%

“…Publication dates ranged from 2004 to 2019, with the last publication being a 2019 retrospective cohort study 24 . Eleven studies were sourced from the Netherlands, 5–8,10,12–14,20,21,23 with one remaining publication originating from Malaysia, 24 two from Norway, 1,22 three from the United Kingdom 15–17 and one from Australia 9 . Twelve studies focussed on an asymptomatic screening population; 1,6,7,9,12,14–17,20,22,23 however, three studies investigated a diagnostic/post‐intervention population; 5,8,21 and three studies considered both screening/diagnostic populations simultaneously 10,13,24 .…”

Section: Resultsmentioning

confidence: 99%

“…Eleven studies were sourced from the Netherlands, 5–8,10,12–14,20,21,23 with one remaining publication originating from Malaysia, 24 two from Norway, 1,22 three from the United Kingdom 15–17 and one from Australia 9 . Twelve studies focussed on an asymptomatic screening population; 1,6,7,9,12,14–17,20,22,23 however, three studies investigated a diagnostic/post‐intervention population; 5,8,21 and three studies considered both screening/diagnostic populations simultaneously 10,13,24 . Twelve studies 1,5,7,8,10,13–16,20,22,24 investigated both standard mammographic views (cranio‐caudal (CC) and mediolateral oblique (MLO)), two studies investigated only the MLO view, 6,12 and one study investigated only the CC view 23 .…”

Section: Resultsmentioning

confidence: 99%

“…Twelve studies focussed on an asymptomatic screening population; 1,6,7,9,12,14–17,20,22,23 however, three studies investigated a diagnostic/post‐intervention population; 5,8,21 and three studies considered both screening/diagnostic populations simultaneously 10,13,24 . Twelve studies 1,5,7,8,10,13–16,20,22,24 investigated both standard mammographic views (cranio‐caudal (CC) and mediolateral oblique (MLO)), two studies investigated only the MLO view, 6,12 and one study investigated only the CC view 23 . Two studies 22,23 were conducted from an equipment‐based perspective, focussing mainly on the compression paddle.…”

Section: Resultsmentioning

confidence: 99%

“…The subjectivity and lacking consistency of current compression guidelines are key concerns raised in much of the current literature; many studies describe the variation in applied compression force among mammographers, screening centres and countries 1,5–10,13–16,20,24 . Clinically, force is typically adjusted in an experience‐based manner according to breast size, elasticity and pain threshold; 8,10,13,20,21,24 Mercer et al suggest that variation in compression may be associated with technique adaptation, as opposed to inconsistent practice 17 . These parameters will differ significantly in a given population; thus, whilst conventional methods attempt to minimise disparity with the implementation of a target force, this is independent of individual breast characteristics 6,8,13 .…”

Section: Discussion Of Findingsmentioning

confidence: 99%

See 4 more Smart Citations

Mammographic compression practices of force‐ and pressure‐standardisation protocol: A scoping review

Serwan

Matthews

Davies

et al. 2020

J of Medical Radiation Sci

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Introduction As an efficient, effective and moderately inexpensive modality, mammography has been implemented as a cancer screening tool and in diagnostic management. However, appropriate breast compression is necessary for optimal outcomes. Current key measures of compression force are subjective and variable, giving rise to the concept of a ‘personalised’ pressure‐standardisation protocol. Methods A scoping review of the literature was performed using the Arksey and O’Malley framework to explore the existing force‐ and pressure‐standardisation protocols in clinical application. A comprehensive search strategy and standardised study selection and evaluation were completed. This synthesis of existing knowledge can lead to the implementation of mechanically standardised mammographic compression pressure as a feasible tailored approach to clinical practice. Four databases (PubMed, MEDLINE, Embase and Scopus) were searched from the databases’ inception to 13 December 2019 for relevant information, and eighteen articles were selected for analysis. Results In addition to current protocol comparison, emerging key concepts include the reasoning behind standardisation, the benefits of improved diagnostic outcomes/decreased pain with negligible change in image quality and average glandular dose (AGD), and the recommendation of a 10kPa (approximate) pressure‐standardisation protocol. Research to date is largely based abroad (Netherlands), with a strong focus on screening practices. Consequently, several gaps in the current literature were identified as potential directions for future investigation. Conclusions As a suggested mammographic guideline, compression pressures of approximately 10kPa aid in image acquisition reproducibility both within and between women; pain levels decrease, with minimal variations to breast thickness, AGD and image quality.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussion Of Findingsmentioning

confidence: 99%

See 3 more Smart Citations

Mammographic compression practices of force‐ and pressure‐standardisation protocol: A scoping review

Serwan

Matthews

Davies

et al. 2020

J of Medical Radiation Sci

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Fibroglandular tissue distribution in the breast during mammography and tomosynthesis based on breast CT data: A patient‐based characterization of the breast parenchyma

Fedon

Caballo

García³

et al. 2021

Medical Physics

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Purpose To develop a patient‐based breast density model by characterizing the fibroglandular tissue distribution in patient breasts during compression for mammography and digital breast tomosynthesis (DBT) imaging. Methods In this prospective study, 88 breast images were acquired using a dedicated breast computed tomography (CT) system. The breasts in the images were classified into their three main tissue components and mechanically compressed to mimic the positioning for mammographic acquisition of the craniocaudal (CC) and mediolateral oblique (MLO) views. The resulting fibroglandular tissue distribution during these compressions was characterized by dividing the compressed breast volume into small regions, for which the median and the 25th and 75th percentile values of local fibroglandular density were obtained in the axial, coronal, and sagittal directions. The best fitting function, based on the likelihood method, for the median distribution was obtained in each direction. Results The fibroglandular tissue tends to concentrate toward the caudal (about 15% below the midline of the breast) and anterior regions of the breast, in both the CC‐ and MLO‐view compressions. A symmetrical distribution was found in the MLO direction in the case of the CC‐view compression, while a shift of about 12% toward the lateral direction was found in the MLO‐view case. Conclusions The location of the fibroglandular tissue in the breast under compression during mammography and DBT image acquisition is a major factor for determining the actual glandular dose imparted during these examinations. A more realistic model of the parenchyma in the compressed breast, based on patient image data, was developed. This improved model more accurately reflects the fibroglandular tissue spatial distribution that can be found in patient breasts, and therefore might aid in future studies involving radiation dose and/or cancer development risk estimation.

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Effect of glandularity on the detection of simulated cancers in planar, tomosynthesis, and synthetic 2D imaging of the breast using a hybrid virtual clinical trial

et al. 2021

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The purpose of this study was to measure the threshold diameter of calcifications and masses for 2D imaging, digital breast tomosynthesis (DBT), and synthetic 2D images, for a range of breast glandularities. This study shows the limits of detection for each of the technologies and the strengths and weaknesses of each in terms of visualizing the radiological features of small cancers. Methods: Mathematical voxel breast phantoms with glandularities by volume of 9%,18%,and 30% with a thickness of 53 mm were created.Simulated ill-defined masses and calcification clusters with a range of diameters were inserted into some of these breast models. The imaging characteristics of a Siemens Inspiration X-ray system were measured for a 29 kV, tungsten/rhodium anode/filter combination. Ray tracing through the breast models was undertaken to create simulated 2D and DBT projection images. These were then modified to adjust the image sharpness, and to add scatter and noise. The mean glandular doses for the images were 1.43, 1.47, and 1.47 mGy for 2D and 1.92, 1.97, and 1.98 mGy for DBT for the three glandularities. The resultant images were processed to create 2D, DBT planes and synthetic 2D images. Patches of the images with or without a simulated lesion were extracted, and used in a four-alternative forced choice study to measure the threshold diameters for each imaging mode, lesion type, and glandularity. The study was undertaken by six physicists. Results: The threshold diameters of the lesions were 6.2, 4.9, and 6.7 mm (masses) and 225, 370, and 399 µm, (calcifications) for 2D, DBT, and synthetic 2D, respectively, for a breast glandularity of 18%. The threshold diameter of illdefined masses is significantly smaller for DBT than for both 2D (p≤0.006) and synthetic 2D (p≤0.012) for all glandularities. Glandularity has a significant effect on the threshold diameter of masses, even for DBT where there is reduced background structure in the images. The calcification threshold diameters for 2D images were significantly smaller than for DBT and synthetic 2D for all glandularities. There were few significant differences for the threshold diameter of calcifications between glandularities, indicating that the background structure has little effect on the detection of calcifications. We measured larger but nonsignificant differences in the threshold diameters for synthetic 2D imaging than for 2D imaging for masses in the 9% (p = 0.059) and 18% (p = 0.19) glandularities. The threshold diameters for synthetic 2D imaging were larger than for 2D imaging for calcifications (p < 0.001) for all glandularities.

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Technical Note: Validation of two methods to determine contact area between breast and compression paddle in mammography

Cited by 11 publications

References 15 publications

Mammographic compression practices of force‐ and pressure‐standardisation protocol: A scoping review

Mammographic compression practices of force‐ and pressure‐standardisation protocol: A scoping review

Fibroglandular tissue distribution in the breast during mammography and tomosynthesis based on breast CT data: A patient‐based characterization of the breast parenchyma

Effect of glandularity on the detection of simulated cancers in planar, tomosynthesis, and synthetic 2D imaging of the breast using a hybrid virtual clinical trial

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