This preliminary study aimed to examine the feasibility of sentinel lymph node biopsy (SLNB) using contrast-enhanced ultrasound (CEUS) vs. indocyanine green fluorescence (ICG), combined with blue dye in patients with breast cancer. | Preliminary study of contrast-enhanced ultrasound in combination with blue dye vs. indocyanine green fluorescence in combination with blue dye for sentinel lymph node biopsy in breast cancer