Diffusion-Weighted Imaging for Skin Pathologies of the Breast-A Feasibility Study.

Area of Science:

• Radiology
• Oncology
• Medical Imaging

Background:

• Breast pathologies affecting the skin require accurate diagnosis for appropriate clinical management.
• Differentiating between various skin pathologies is crucial for effective treatment planning.

Purpose of the Study:

• To evaluate the feasibility of using diffusion-weighted imaging (DWI) in breast MRI to differentiate between various skin pathologies.
• To compare apparent diffusion coefficients (ADCs) in skin areas affected by different pathologies.

Main Methods:

• Retrospective analysis of 88 female patients undergoing diagnostic breast MRI with DWI (1.5T or 3T).
• Manual segmentation of skin areas and comparison of ADCs across groups: inflammatory breast cancer (IBC), benign skin inflammation (BSI), Paget's disease (PD), skin-involved breast cancer (SIBC), and healthy skin (H).

Main Results:

• Skin-involved breast cancer (SIBC) exhibited significantly lower mean ADCs compared to benign skin inflammation (BSI) and inflammatory breast cancer (IBC).
• First-order ADC features (mean, median, max, min) showed significant differences only between SIBC and BSI groups.
• No significant difference in mean ADC was observed between BSI and IBC groups.

Conclusions:

• Quantitative DWI shows promise in identifying differences among breast skin pathologies.
• DWI alone may not be sufficient to clearly distinguish all types of skin pathologies.
• Further research is needed to establish the role of quantitative DWI in the diagnostic assessment of breast skin conditions.