title: Usefulness of the routine magnification view after breast conservation therapy for carcinoma.
abstract: OBJECTIVE
  To assess the usefulness of the routine supplementary magnification view in patients who have undergone breast conservation therapy.
  
  
  METHODS
  Four hundred seventy-one mammograms in 392 patients were evaluated. Conventional craniocaudal and mediolateral oblique views were obtained in each patient. After a preliminary interpretation was made, a magnification view of the excision site was evaluated and any additional information was documented.
  
  
  RESULTS
  In 115 examinations (24%), the magnification view was considered necessary to better evaluate equivocal or questionable calcifications seen on standard views. In 18 cases (4%), review of the magnification view influenced the decision to perform biopsy. None of the magnification views that were considered unnecessary caused the interpretation made from conventional views to be altered.
  
  
  CONCLUSIONS
  Magnification mammographic views should be obtained in patients who have undergone breast conservation therapy only when considered necessary after review of findings on conventional views.
authors.affiliation: Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
authors.forename: P J
authors.initials: PJ
authors.lastname: DiPiro
authors.forename: J E
authors.initials: JE
authors.lastname: Meyer
authors.forename: K
authors.initials: K
authors.lastname: Shaffer
authors.forename: C M
authors.initials: CM
authors.lastname: Denison
authors.forename: T H
authors.initials: TH
authors.lastname: Frenna
authors.forename: A T
authors.initials: AT
authors.lastname: Rolfs
mesh_terms: D001943:Breast Neoplasms / Q000000981:diagnostic imaging* / Q000453:epidemiology / Q000628:therapy*; D005069:Evaluation Studies as Topic; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008327:Mammography / Q000379:methods; D015412:Mastectomy, Segmental; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000000981:diagnostic imaging* / Q000453:epidemiology; D011858:Radiographic Magnification; D018714:Radiotherapy, Adjuvant; D013997:Time Factors