MR-Guided Localization of Suspected Breast Lesions Detected Exclusively by Postcontrast MRI

Abstract

We describe and evaluate a preoperative MRI localization procedure for suspected breast lesions.Fourteen consecutive patients underwent MR localization of suspected breast lesions discovered with contrast-enhanced MRI but not detected by conventional mammography or ultrasound. In each case diagnostic MRI was repeated after the application of special skin markers. A non-magnetic wire was subsequently inserted into the breast and a second MRI performed to document the position of the wire tip relative to the lesion.The procedure was successful in all 14 patients, enabling excision of the lesion and allowing histological diagnoses.We found the described procedure to be quite useful.