[Magnetic resonance tomography (MRT) of the breast in problem patients].
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| Abstract |
Over the past few years MRI has become important in the evaluation of inconclusive mammograms. These studies were performed on high-field strength machines, which have the disadvantage of limited accessibility. We evaluated 185 investigations on 169 patients on a 0.5 Tesla MR machine using a dynamic sequence and gadolinium (Gd) DTPA. The results in 107 patients were correlated with the histological findings and MRI assessment proved correct in 44 of 47 benign lesions (93.6%) and 57 of 60 malignant lesions (95%). The 3 false positive results occurred in patients with mastitis, fibroadenoma and an ectatic vessel, respectively. Of the 3 false negative results 2 occurred in patients with microcarcinomas and were due to partial-volume artefacts, whilst the third was due to a technical error. These results compare with those reported in the literature using mainly high-field strength machines. Furthermore, unsuspected second tumours were diagnosed in the ipsilateral breast of 6 women and infiltration of the adjacent thoracic wall in 4 women, findings which had not been evident on mammography. Hence, our results indicate that a mild-field strength MR machine is a valuable tool not only for the non-invasive differentiation between benign and malignant lesions of the breast, but also for planning therapeutic strategy.
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| Authors | A Brezina, B W Schwaighofer |
| Journal | Wiener klinische Wochenschrift (Wien Klin Wochenschr) Vol. 106 Issue 18 Pg. 584-9 ( 1994) ISSN: 0043-5325 [Print] Austria |
| Vernacular Title | Magnetresonanztomographie (MRT) der Mamma bei Problempatientinnen. |
| PMID | 7992497 (Publication Type: English Abstract, Journal Article) |
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