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Radiology, Vol 193, 777-781, Copyright © 1994 by Radiological Society of North America

ARTICLES

MR characterization of suspicious breast lesions with a gadolinium- enhanced TurboFLASH subtraction technique

C Boetes, JO Barentsz, RD Mus, RF van der Sluis, LJ van Erning, JH Hendriks, R Holland and SH Ruys
Department of Diagnostic Radiology, St Radbound University Hospital, Nijmegen, The Netherlands.

PURPOSE: To assess the utility of gadolinium-enhanced dynamic magnetic resonance (MR) imaging with turbo fast low-angle shot (TurboFLASH) technique in the differentiation of benign from malignant lesions of the breast. MATERIALS AND METHODS: Contrast material-enhanced MR images were obtained at intervals of 2.3 seconds for 2 minutes. After the first four images were obtained, contrast medium was intravenously injected within 10 seconds. Lesions that enhanced within 11.5 seconds after the aorta opacified were regarded as malignant. Lesions that enhanced more than 11.5 seconds after the aorta were regarded as benign. A centrifugal pattern of enhancement was regarded as a sign that a lesion was benign. RESULTS: Eighty-seven lesions were evaluated. Histologic examination showed 65 lesions were malignant and 22 were benign. Gadolinium-enhanced TurboFLASH imaging had a sensitivity of 95%, a specificity of 86%, and an overall accuracy of 93% in differentiating benign from malignant lesions. CONCLUSION: Gadolinium- enhanced TurboFLASH imaging is a valuable method in the examination of breast lesions suspected of being malignant.




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Copyright © 1994 by the Radiological Society of North America.