A tracking system for medical devices, a rigid first medical device including a distal portion for insertion into the body of a patient and a proximal portion remaining external to the patient body, a magnetic element being located on the proximal portion of the first medical device, the system comprising: a tracking circuit to track movement of the first medical device, the tracking circuit including: a processing component that computes position data of the first medical device according to detection of the magnetic element; a reception component for detecting magnetic properties produced by the magnetic element of the first medical device and for providing the information to the processing component, and a memory for storing the position data; a first medical imaging system including an ultrasound imaging system for imaging a first body portion of the patient, the first medical imaging system including an interface for communicating information relating to the position data of the first medical device; the processing component bi-directionally communicating with the first medical imaging system, an imaging pod being an ultrasound probe for cooperative use with the first medical imaging system and providing information to the first medical imaging system, wherein the reception component is physically integrated with the imaging pod, and a second medical imaging system for imaging a second body portion of the patient; wherein the first medical imaging system is configured to track the position of the first medical device; wherein the second medical imaging system is configured to track the position of a second medical device; and wherein the positions of the first and second medical devices are depicted on a single display. a tracking circuit to track movement of the first medical device, the tracking circuit including: a processing component that computes position data of the first medical device according to detection of the magnetic element; a reception component for detecting magnetic properties produced by the magnetic element of the first medical device and for providing the information to the processing component, and a memory for storing the position data; a processing component that computes position data of the first medical device according to detection of the magnetic element; a reception component for detecting magnetic properties produced by the magnetic element of the first medical device and for providing the information to the processing component, and a memory for storing the position data; a first medical imaging system including an ultrasound imaging system for imaging a first body portion of the patient, the first medical imaging system including an interface for communicating information relating to the position data of the first medical device; the processing component bi-directionally communicating with the first medical imaging system, an imaging pod being an ultrasound probe for cooperative use with the first medical imaging system and providing information to the first medical imaging system, wherein the reception component is physically integrated with the imaging pod, and a second medical imaging system for imaging a second body portion of the patient; wherein the first medical imaging system is configured to track the position of the first medical device; wherein the second medical imaging system is configured to track the position of a second medical device; and wherein the positions of the first and second medical devices are depicted on a single display.