What are the technical challenges to performing breast biopsy with MRI needle localization?

Updated: Dec 28, 2015
  • Author: William Teh, MBChB, FRCR; more...
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Answer

Technical difficulties and challenges include the tendency of the MRI-visible lesion to fade over time (because enhancement with contrast material is transient). [5] In addition, because of the amount of time required to perform the procedure (30-60 min), the patient may begin to move, which could cause an error in needle placement. Nevertheless, MRI localizations have generally been as accurate as mammographic localizations, with miss rates of 2-9%. Some investigators have suggested that postoperative MRI should be performed to verify complete excision of the lesion.


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