Journal List > J Korean Soc Radiol > v.80(1) > 1141906

This article has been corrected. See "Erratum: A Systematic Review on Radiologists' Knowledge of Breast Cancer Screening" in Volume 80 on page 372.
Kim: A Systematic Review on Radiologists' Knowledge of Breast Cancer Screening

Abstract

Mammography screening has been shown to reduce breast cancer mortality and remains the primary screening method. However, the harms of false-positive results and over-diagnosis have recently been emphasized, and screening guidelines have been revised. Breast ultrasonography screening has the advantage of detecting mammographically occult breast cancers in dense breasts; however, false-positive results and rising medical costs due to increased biopsy recommendations create a problem. Till date, recommendations for breast ultrasonographyscreenings have not been established. Magnetic resonance imaging is recommended for women at high risk and has excellent sensitivity, but it is expensive and inferior in accessibility. This article reviews the benefits, harms, and guidelines of methods commonly used in breast cancer screening. This review also provides breast cancer screening methods according to individual breast cancer risk.

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Fig. 1.
Screening recommendation according to breast cancer risk.
jksr-80-8f1.tif
Table 1.
Results of Randomized Controlled Trials of Mammography Screening
Trial Trial Year Country Age (Years) Mortality Reduction
% 95% CI
HIP (8) 1963 USA 40–64 22 % 0 to 39 95% CI
Malmo (9) 1976 Sweden 45–69 22 5 to 35
Two-country (10) 1977 Sweden 40–74 27 11 to 41
Edinburgh (11) 1978 Scotland 45–64 21 -2 to 40
NBSS1 and NBSS2 (12) 1980 Canada 40–59 1 -12 to 12
Stockholm (14) 1981 Sweden 40–64 10 -28 to 37
Gothenborg (15) 1982 Sweden 40–59 23 0 to 40
Overall       20 14 to 27

CI = confidence interval, HIP = Health Insurance Plan, NBSS = National Breast Screening Trial

Table 2.
Guidelines for Breast Cancer Screening
  Age to Start (Year) Screening Interval Age to Stop (Year)
ACR 40+ Annual Continue as along as in good health
ACS 45–54 Annual Until approximately 10 years of life left
  55+ Biennial  
USPSTF 50–74 Biennial 75+
KNCSP 40–69 Biennial 70+

KNCSP 4069 Biennial 70+ ACR = American College of Radiology, ACS = American Cancer Society, KNCSP = Korean National Cancer Screening Program, USPSTF = US Preventive Services Task Force

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