Effect of Magnification Views for Detection of Microcalcifications in Digital Mammograms
Keywords:
Magnification view, microcalcification, digital mammogramAbstract
Objective: To study the efficiency of magnification views compared to standard digital mammograms(MMG) on the detection rate, BIRADS grading, and effects on management of microcalcification.
Methods: 100 patients with the total of 136 microcalcifications were retrospectively reviewed on MMG and the magnification view in a tertiary university hospital between January 2018 and December 2018. A breast radiologist reviewed the images on two separated occasions. The number of lesions, microcalcification grading by using the Breast Imaging Reporting and Data Systems (BIRADS), and diagnostic confidence levels were recorded. The detection rate, statistical difference of BIRADS grading and diagnostic confidence level, and changes in management were analysed.
Results: The number of lesions on MMG and magnification views were 121 and 136; magnification increased the detection rate by 12.39%. A comparison between MMG and magnification view showed a statistically significant difference of microcalcification grading by BIRADS (p < 0.001), in which 62.5% of the cases received different gradings. This difference in grading resulted in a change in management in 21.33% of the cases. The magnification view was also related to high diagnostic confidence levels (81.6% of the cases, p < 0.001).
Conclusions: Magnification increases the detection rate, diagnostic confidence level, and resulted in some changes in management compared to MMG.
References
Tan PH, Ellis I, Allison K, Brogi E, Fox SB, Lakhani S, et al. The 2019 World Health Organization classification of tumours of the breast. Histopathology 2020;77(2):181–5. doi.org/10.1111/his.14091
Weigel S, Decker T, Korsching E, Hungermann D, Böcker W, Heindel W. Calcifications in digital mammographic screening: improvement of early detection of invasive breast cancers? Radiology 2010;255(3):738–45. doi.org/10.1148/radiol.10091173
Sripaiboonkij N, Thinkamrop B, Promthet S, Kannawat C, Tangcharoensathien V, Ansusing T, et al. Breast cancer detection rate, incidence, prevalence AND interval cancer-RELATED mammography screening times AMONG thai women. Asian Pac J Cancer Prev 2016;17(8):4137–41.
Muttarak M, Paramagul C, Ng KH. Diagnostic mammography in breast imaging. In: Diagnostic and Therapeutic Applications of Breast Imaging, 2012:85–119.
Wiwanitkit V. Prevalence of abnormal mammogram among working Thai women. Indian J Cancer 2014;51(4):486. doi.org/10.4103/0019-509X.175349
Sickles EA. Mammographic detectability of breast microcalcifications. AJR Am J Roentgenol 1982;139(5):913–8. doi.org/10.2214/ajr.139.5.913
Sickles EA. Further experience with microfocal spot magnification mammography in the assessment of clustered breast microcalcifications. Radiology 1980;137(1 Pt 1):9–14. doi.org/10.1148/radiology.137.1.7422866
Oestmann JW, Kopans DB, Linetsky L, Hall DA, McCarthy KA, White G, et al. Comparison of two screen-film combinations in contact and magnification mammography: detectability of microcalcifications. Radiology 1988;168(3):657–9. doi.org/10.1148/radiology.168.3.3406394
Fallenberg EM, Dimitrijevic L, Diekmann F, Diekmann S, Kettritz U, Poellinger A, et al. Impact of magnification views on the characterization of microcalcifications in digital mammography. Rofo 2014;186(3):274–80. doi.org/10.1055/s-0033-1350572
Sickles EA, Doi K, Genant HK. Magnification film mammography: image quality and clinical studies. Radiology 1977;125(1):69–76. doi.org/10.1148/125.1.69
Fischer U, Baum F, Obenauer S, Funke M, Hermann KP, Grabbe E. Digital full field mammography: comparison between radiographic direct magnification and digital monitor zooming. Radiologe 2002;42(4):261–4. doi.org/10.1007/s00117-002-0733-2
Min Jung K, Eun-Kyung K, Jin Young K, Eun Ju S, Ji Hyun Y, Seon Hyeong C, et al. Characterization of microcalcification: can digital monitor zooming replace magnification mammography in full-field digital mammography? Eur Radiol 2009;19(2)310-7. doi.org/10.1007/s00330-008-1135-2
Moraux-Wallyn M, Chaveron C, Bachelle F, Taieb S, Ceugnart L. Comparison between electronic zoom and geometric magnification of clusters of microcalcifications on digital mammography. J Radiol 2010;91(9 Pt 1):879–83. doi.org/10.1016/S0221-0363(10)70129-3
Kim MJ, Youk JH, Kang DR, Choi SH, Kwak JY, Son EJ, et al. Zooming method (x 2.0) of digital mammography vs digital magnification view (x 1.8) in full-field digital mammography for the diagnosis of microcalcifications. Br J Radiol 2010;83(990):486–92. doi.org/10.1259/bjr/16967819
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2023 Srinagarind Medical Journal
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
