Screening Breast MRI Primer: Indications, Current Protocols, and Emerging Techniques

Area of Science:

• Radiology
• Oncology
• Medical Imaging

Background:

• Breast dynamic contrast-enhanced MRI (DCE-MRI) is highly sensitive for breast cancer detection.
• Current screening MRI is primarily for high-risk patients, but could benefit intermediate-risk and dense-breasted women.
• Reducing scan and interpretation times can enhance cost-effectiveness and accessibility.

Purpose of the Study:

• To review current breast MRI screening indications.
• To examine standard breast DCE-MRI techniques.
• To explore alternate, time-efficient screening MRI protocols.

Main Methods:

• Review of existing literature on breast MRI screening.
• Discussion of standard breast DCE-MRI.
• Exploration of abbreviated breast MRI (Ab-MRI), ultrafast MRI, and diffusion-weighted imaging (DWI).

Main Results:

• Ab-MRI shortens scan time but lacks kinetic information.
• Ultrafast MRI captures kinetic data within the first minute post-contrast.
• Noncontrast DWI shows potential for detecting mammographically occult cancers.

Conclusions:

• Alternate breast MRI protocols can decrease scan and interpretation times.
• These advancements may expand MRI screening accessibility.
• Optimized MRI techniques hold promise for broader breast cancer screening applications.