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[Two mammographic periods compared].

G M Giuseppetti1, S Baldassarre, P Ercolani

  • 1Istituto di Semeiologia, Diagnostica e Terapia Strumentale, Università, Ancona.

La Radiologia Medica
|December 1, 1990
PubMed
Summary
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Advanced mammography units significantly improve early breast cancer detection. Newer technology enables earlier diagnosis and better visualization of subtle cancer signs compared to older equipment.

Area of Science:

  • Radiology
  • Oncology
  • Medical Imaging

Background:

  • Mammography is a key tool for breast cancer screening and diagnosis.
  • Technological advancements in mammography equipment may impact diagnostic accuracy and early detection rates.

Purpose of the Study:

  • To compare the diagnostic performance of older mammography units with last-generation equipment.
  • To evaluate the impact of technological improvements on early breast cancer detection and staging.

Main Methods:

  • Retrospective analysis of two patient cohorts (1968/74 and 1987/89) with histologically confirmed breast cancer.
  • Comparison of mammographic findings using fixed-anode units (0.6x0.6mm focal spot) versus modern units (0.3x0.3mm focal spot, magnification).
  • Analysis of lesion staging, mammographic accuracy, and specific lesion features.

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Main Results:

  • The second series (modern unit) showed a higher proportion of early-stage (T1) cancers (42%) compared to the first series (10%).
  • Mammographic accuracy improved slightly from 83% in the first series to 84.8% in the second series.
  • Indirect signs of breast cancer, missed by older units, were detected in 11 patients using the advanced mammography unit.

Conclusions:

  • Last-generation mammographic units facilitate earlier breast cancer diagnosis.
  • Advanced technology enhances the demonstration of subtle mammographic signs, improving diagnostic confidence and enabling prompt detection.