Development of MRI Projection Mapping System for Breast-Conserving Surgery in the Operating Room: Preliminary...

Area of Science:

• Medical imaging
• Surgical oncology
• Biomedical engineering

Background:

• Accurate localization of invasive breast cancer is crucial for successful breast-conserving surgery.
• Conventional methods for tumor localization can have limitations in precision.

Purpose of the Study:

• To assess the feasibility of a novel prototype MRI projection mapping (PM) system.
• To evaluate the system's accuracy in localizing invasive breast cancer prior to breast-conserving surgery.

Main Methods:

• Prospective study involving 10 women with invasive breast cancer.
• Utilized a prototype PM system with a projector and camera for breast surface shape measurement.
• Compared tumor size and location determined by the PM system against conventional methods and pathology.

Main Results:

• No significant differences were observed in the maximum diameters of invasive cancers between the PM system and conventional methods or pathology.
• The maximum discrepancy in tumor location between the PM system and the conventional method ranged from 3-8 mm.

Conclusions:

• The developed MRI projection mapping (PM) system demonstrates feasibility for invasive breast cancer localization.
• The PM system shows potential to support breast-conserving surgery by accurately displaying tumor size and location on the breast surface.