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World J Methodol. Sep 20, 2026; 16(3): 110991
Published online Sep 20, 2026. doi: 10.5662/wjm.v16.i3.110991
Table 1 Comparison of different imaging modalities by smallest visible tumor size
Modality
Smallest visible tumor
Best use case
Mammography2-5 mm (ideal), about 5-10 mm avgGeneral screening, calcifications
Ultrasound3-5 mmDense breasts, targeted follow-up
Magnetic resonance imaging1-2 mmHigh-risk screening, dense breasts
Microwave imaging4-10 mm (experimental)Radiation-free, low-cost adjunct (early phase)


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