Lymphatic and Vascular Dual-System Super-Resolution Ultrasound for Diagnosing Sentinel Lymph Node Metastasis in...

Area of Science:

• Oncology
• Medical Imaging
• Diagnostic Technology

Background:

• Sentinel lymph node (SLN) metastasis is a critical prognostic factor in breast cancer.
• Accurate preoperative staging of SLN metastasis is essential for treatment planning.
• Current diagnostic methods for SLN metastasis have limitations.

Purpose of the Study:

• To develop and validate a non-invasive diagnostic model for SLN metastasis.
• To utilize lymphatic and vascular dual-system super-resolution ultrasound (SRUS) for improved diagnosis.
• To assess the diagnostic performance of SRUS compared to conventional ultrasound.

Main Methods:

• A prospective study involving 54 breast cancer patients undergoing SLN biopsy.
• Conventional axillary ultrasound followed by dual-system SRUS (lymphatic and vascular contrast-enhanced).
• Multivariate logistic regression analysis to construct predictive models based on quantitative SRUS parameters.

Main Results:

• The dual-system SRUS model achieved an AUC of 0.962, demonstrating high diagnostic accuracy.
• Key predictors included lymphatic sinus density and vascular parameters like blood volume and flow velocity.
• The dual-system model significantly outperformed L-CESRUS, V-CESRUS, and conventional ultrasound.

Conclusions:

• The integrative dual-system SRUS model provides a highly accurate, non-invasive method for preoperative diagnosis of SLN metastasis in breast cancer.
• This novel approach has the potential to optimize patient management and treatment strategies.
• SRUS offers a promising advancement in breast cancer diagnostics.