A medical ultrasound system for producing the location of an ultrasound probe and image in relation to at least one pre-selected anatomical reference and for processing ultrasound data and anatomical reference data, the system including an ultrasound machine having an ultrasound probe having a probe head, an ultrasound image generator for creating frame image data and frame images, and a real time three-dimensional mapping display comprising: a first magnetic sensor fixed to the probe head for generating data identifying probe head position; a magnetic anatomical reference sensor for tracking the position of the at least one pre-selected anatomical reference; a body position sensor attached to a body attachment part that allows the positioning and attachment of the body position sensor in the same position and orientation at repeating imaging sessions separated in time, wherein the body attachment part is adapted to be aligned with the patient's body planes and axes and follow their position and orientation changes, and wherein the system is configured to register the body position sensor's output with the positions of said planes and axes and to use changes in the body position sensor's output to calculate the patient's body axes or planes positions changes; a processor for receiving data from the first sensor, the anatomical reference sensor, body position data output from the body position sensor, and frame images and frame image data, the processor recording the patient's body axes or planes positions with the corresponding ultrasound images and dynamically referencing probe head position, frame and image to the at least one pre-selected anatomical reference; a display for simultaneously displaying processor data over a body diagram, with the displayed data dynamically referenced to the at least one pre-selected anatomical reference, wherein the calculated positional changes are applied to the patient body coordinates to display the whole body position change relative to a fixed reference; and sensor ports for the first sensor, the anatomical reference sensor and the body position sensor, a port for connection of a transmitter of a 3D magnetic tracking member, an ultrasound data port, and a processor port; wherein the ultrasound probe is connected to the ultrasound data port; the 3D magnetic tracking member having the transmitter for transmitting data operatively connected to the port for connection of the transmitter; wherein the processor is operatively connected to the processor port for receiving ultrasound data and sensor data from the anatomical reference sensor, the body position sensor, and the first sensor; and a memory for storing data from the processor. a first magnetic sensor fixed to the probe head for generating data identifying probe head position; a magnetic anatomical reference sensor for tracking the position of the at least one pre-selected anatomical reference; a body position sensor attached to a body attachment part that allows the positioning and attachment of the body position sensor in the same position and orientation at repeating imaging sessions separated in time, wherein the body attachment part is adapted to be aligned with the patient's body planes and axes and follow their position and orientation changes, and wherein the system is configured to register the body position sensor's output with the positions of said planes and axes and to use changes in the body position sensor's output to calculate the patient's body axes or planes positions changes; a processor for receiving data from the first sensor, the anatomical reference sensor, body position data output from the body position sensor, and frame images and frame image data, the processor recording the patient's body axes or planes positions with the corresponding ultrasound images and dynamically referencing probe head position, frame and image to the at least one pre-selected anatomical reference; a display for simultaneously displaying processor data over a body diagram, with the displayed data dynamically referenced to the at least one pre-selected anatomical reference, wherein the calculated positional changes are applied to the patient body coordinates to display the whole body position change relative to a fixed reference; and sensor ports for the first sensor, the anatomical reference sensor and the body position sensor, a port for connection of a transmitter of a 3D magnetic tracking member, an ultrasound data port, and a processor port; wherein the ultrasound probe is connected to the ultrasound data port; the 3D magnetic tracking member having the transmitter for transmitting data operatively connected to the port for connection of the transmitter; wherein the processor is operatively connected to the processor port for receiving ultrasound data and sensor data from the anatomical reference sensor, the body position sensor, and the first sensor; and a memory for storing data from the processor.