A battery-powered, hand-held device/device assembly designed to be placed over the external body surface for collection, display, and analysis of ultrasound information during a variety of ultrasound imaging procedures (i.e., non-dedicated); it may in addition be intended to be used with a sterile cover for intraoperative imaging. It consists of a flat- or concave-lensed ultrasound transducer and includes an integrated image processing system; it may include an integrated display or be intended to wirelessly transmit images to an off-the-shelf device (e.g., smartphone, tablet) with dedicated software installed. It is not designed to be inserted into the vagina or rectum.