A portable ultrasound system, comprising: a main screen included in a hinged portion of the portable ultrasound system configured to open and close relative to a main housing; a touchscreen included on a top surface of the main housing of the portable ultrasound system; a touchpad included on a top surface of the main housing of the portable ultrasound system; and a processing circuit configured to perform general computing operations and configured to receive ultrasound imaging data, wherein the processing circuit is further configured to provide ultrasound information to the touchscreen; wherein the ultrasound imaging user interface includes a gate icon corresponding to a blood flow analysis gate used for measuring blood flow, at least one of a position, a size, and an angle of the gate is capable of being adjusted by a touch input to change an image displayed on the main screen, the touch input includes a gesture performed on the touchscreen, and the processing circuit is further configured to adjust an alignment of the blood flow analysis gate based on the gesture; wherein, the portable ultrasound system is characterized in that, the touchpad comprises a trackball region, a swipe region, a continue region, and a complete region; the trackball region is configured to, by receiving a first gesture, position a cursor on the image displayed on main screen, interact with a user interface of the touchscreen, and position a region-of-interest; the swipe region is located on a top of the touchpad and configured to receive a second gesture which is performed independent from and simultaneously with the first gesture, a function of the second gesture in the swipe region is depending on a selected widget; the continue region is configured to, by receiving a third gesture, switch between options or choices in a group of options or choices and to cycle between peer choices which depend on a currently active widget; the complete region is configured to, by receiving a fourth gesture, finish a task and enter a new task. a main screen included in a hinged portion of the portable ultrasound system configured to open and close relative to a main housing; a touchscreen included on a top surface of the main housing of the portable ultrasound system; a touchpad included on a top surface of the main housing of the portable ultrasound system; and a processing circuit configured to perform general computing operations and configured to receive ultrasound imaging data, wherein the processing circuit is further configured to provide ultrasound information to the touchscreen; wherein the ultrasound imaging user interface includes a gate icon corresponding to a blood flow analysis gate used for measuring blood flow, at least one of a position, a size, and an angle of the gate is capable of being adjusted by a touch input to change an image displayed on the main screen, the touch input includes a gesture performed on the touchscreen, and the processing circuit is further configured to adjust an alignment of the blood flow analysis gate based on the gesture; wherein, the portable ultrasound system is characterized in that, the touchpad comprises a trackball region, a swipe region, a continue region, and a complete region; the trackball region is configured to, by receiving a first gesture, position a cursor on the image displayed on main screen, interact with a user interface of the touchscreen, and position a region-of-interest; the swipe region is located on a top of the touchpad and configured to receive a second gesture which is performed independent from and simultaneously with the first gesture, a function of the second gesture in the swipe region is depending on a selected widget; the continue region is configured to, by receiving a third gesture, switch between options or choices in a group of options or choices and to cycle between peer choices which depend on a currently active widget; the complete region is configured to, by receiving a fourth gesture, finish a task and enter a new task.