[Interventional MRI of the breast. Indications, technique, results and perspectives].

With the use of diagnostic MR imaging of the breast MR guided minimal invasive interventions are increasingly needed to obtain histologic proof of lesions, that are occult at mammography and ultrasound. MR guided interventions are time consuming and expensive. Therefore it is necessary to insure, that the diagnostic MR examination of the referring institution establishing the indication for biopsy is of high quality.Assuming accurate patient selection percutaneous MR vacuum-assisted biopsy is a safe and accurate method for the evaluation of even small enhancing breast lesions. Up to now the imaging of the biopsy procedure itself is not possible due to a lack of compatibility of the biopsy needle. Careful reviewing of imaging and pathologic findings is therefore recommended. Several newly developed MR compatible devices will allow more precise placement and imaging of the biopsy needle. Procedure times will be reduced. For the evaluation of additional enhancing lesions in patients with breast carcinoma referred for operation the preoperative wire localization is remaining a wide-spread safe and simple method.