Premium
MRI detection of distinct incidental cancer in women with primary breast cancer studied in IBMC 6883
Author(s) -
Schnall Mitchell D.,
Blume Jeffery,
Bluemke David A.,
DeAngelis Gia A.,
DeBruhl Nanette,
Harms Steven,
HeywangKöbrunner Sylvia H.,
Hylton Nola,
Kuhl Christiane K.,
Pisano Etta D.,
Causer Petrina,
Schnitt Stuart J.,
Smazal Stanley F.,
Stelling Carol B.,
Lehman Constance,
Weatherall Paul T.,
Gatsonis Constantine A.
Publication year - 2005
Publication title -
journal of surgical oncology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.201
H-Index - 111
eISSN - 1096-9098
pISSN - 0022-4790
DOI - 10.1002/jso.20381
Subject(s) - medicine , mammography , breast cancer , breast mri , radiology , biopsy , cancer , magnetic resonance imaging
Abstract Background Prior single institution studies suggest MRI may improve the assessment of the extent of cancer within the breast, and thus reduce the risk of leaving macroscopic disease in the breast following breast conservation therapy. We report on the rate of MRI and mammography detection of foci of distinct incidental cancer in a prospective, multi center trial involving 426 women with confirmed breast cancer at 15 institutions in the US, Canada, and Germany. Methods Women underwent mammography and MRI prior to biopsy of the suspicious index lesion. Additional incidental lesions (IL) greater than 2 cm from the index lesion that were detected by mammography and MRI were noted and characterized. Biopsy recommendations were associated with ILs given an assessment of suspicious or highly suspicous (BiRads 4 and 5). These assessments were considered a positive test. Results MRI had a significantly higher yield of confirmed cancer ILs than mammography (0.18 (95%CI: 0.142–0.214) for MRI versus 0.072 (95%CI: 0.050–0.100) for mammography). The cancer ILs detected by MRI alone appeared to be similar to those detected by mammography with respect to size and histology. The percentage of biopsies of ILs that resulted in a cancer diagnosis was similar between the modalities (MRI 0.72(95%CI: 0.6–0.81); Mammography 0.85 (95%CI: 0.62–0.96)) Conclusions These results suggest that consideration needs to be given regarding the integration of breast MRI into the pretreatment evaluation of women seeking breast conservation therapy. J. Surg. Oncol. 2005;92:32–38. © 2005 Wiley‐Liss, Inc.