medical image segmentation project

i have an ultrasound breast image (B-mode) , i need to segment chest wall from breast region , any suggestions?

thanks in regards ;

[KALYAN ACHARJYA]

Share the sample image, along with proper pointing the ROI.

[Samar Ragab]

done , but take care that the breast region can be changed according to being at the preiphral (skin ) or in the central of the breast .