A portable ultrasound imaging assembly includes a cart or support stand on which is mounted a portable ultrasound imaging system and a handle that can be grasped by a user to move the cart and imaging assembly into the desired position. The support stand further includes a storage bin removably mounted in a readily accessible location directly below the handle. The storage bin is formed to hold a number of large containers, such as cylindrical sanitizing wipe canisters, and has a profile similar to that of the handle. The profile of the storage bin includes a rear facing recess within which the support stand is disposed when the storage bin is secured to the support stand in either a forward or rearward facing direction. The attachment structure(s) for the storage bin is located within the recess to minimizing the profile of the storage bin on the support stand.