MR-Guided Breast Biopsy vs. Ultrasound-Guided Breast Biopsy

Key Differences in Clinical Application

The American College of Radiology recommends ultrasound-guided biopsy as the preferred first-line approach when lesions are visible on ultrasound, offering real-time needle visualization and no radiation exposure, for patients with lesions accessible by ultrasound 1, 2, 3, 4
The American College of Radiology suggests that MR-guided biopsy is reserved for lesions visible only on MRI, making it a specialized procedure for MRI-occult findings, although the specific details of this recommendation are not provided in the cited references 1, 2

The American College of Radiology indicates that ultrasound-guided biopsy is indicated when a sonographic correlate is identified for a mammographic finding, allowing avoidance of stereotactic guidance and radiation exposure, for patients with mammographic findings 1, 2
The American College of Radiology advises against relying on ultrasound alone for evaluation of calcifications, as ultrasound typically cannot visualize microcalcifications adequately, requiring stereotactic rather than ultrasound guidance, for patients with calcifications 5

The American College of Radiology recommends a modality selection hierarchy, where if a lesion is visible on ultrasound, an ultrasound-guided biopsy should be performed, for patients with lesions visible on ultrasound 1, 2, 3, 4
The American College of Radiology suggests that if a lesion is visible only on mammography or DBT, a stereotactic-guided biopsy should be performed, especially for calcifications, for patients with mammographic findings 1, 2, 5