Problem Solving MRI to Reduce False-Positive Biopsy Related to Breast US: Conductivity vs. DWI vs. Abbreviated...

Area of Science:

• Radiology
• Medical Imaging
• Oncology

Background:

• Breast ultrasound (US) is valuable for diagnosing breast masses but can lead to false-positive biopsies due to overlapping features and subjective interpretation.
• Differentiating benign from malignant breast lesions remains a challenge, necessitating advanced diagnostic tools.

Purpose of the Study:

• To assess the efficacy of conductivity imaging in reducing false-positive biopsy results for breast masses.
• To compare the performance of conductivity imaging against diffusion-weighted imaging (DWI) and abbreviated MRI.

Main Methods:

• A prospective study involving 79 women with 86 BI-RADS category 4 breast masses detected by US.
• Evaluated conductivity imaging, DWI, and abbreviated MRI by measuring conductivity parameters, apparent diffusion coefficient (ADC) values, and BI-RADS categories.
• US-guided biopsy served as the reference standard.

Main Results:

• US-guided biopsy identified 65 benign and 21 malignant lesions.
• Conductivity imaging (AUC=0.74) reduced false-positive biopsies by 23%.
• Diffusion-weighted imaging (ADC) reduced false-positives by 38%, and abbreviated MRI by 43%, without missing malignant lesions.

Conclusions:

• Conductivity imaging may have lower performance in reducing unnecessary breast biopsies compared to DWI and abbreviated MRI.
• DWI and abbreviated MRI demonstrate superior potential in improving diagnostic accuracy and minimizing false-positive biopsy results.