Position sensing in intravascular processes

An intravascular system comprising:

• a catheter including a proximal end, a distal end, a plurality of magnetic domains, a sensor located at the distal end, and a cable extending from the proximal end of the catheter to the distal end of the catheter and operatively connected to the sensor at the distal end, the sensor configured to provide sensor information representative of one or more intravascular properties of a patient, wherein the plurality of magnetic domains are consecutively arranged in a plurality of groups of magnetic domains, each group of magnetic domains having, consecutively arranged, one magnetic domain with a first magnetization magnitude, one magnetic domain with a second magnetization magnitude greater than the first magnetization magnitude, and one magnetic domain with a third magnetization magnitude greater than each of the first magnetization magnitude and the second magnetization magnitude, wherein the first magnetization magnitude in each group of magnetic domains is a same first magnetization magnitude, wherein the second magnetization magnitude in each group of magnetic domains is a same second magnetization magnitude, and wherein the third magnetization magnitude in each group of magnetic domains is a same third magnetization magnitude;
• a magnetic pickup configured to output a pickup signal based on the magnetic field at the magnetic pickup produced by the plurality of magnetic domains;
• and
• an intravascular processing engine in communication with the sensor of the catheter and the magnetic pickup and configured to:
• (i) receive the sensor information from the sensor of the catheter;
• (ii) receive a position signal representative of the pickup signal;
• (iii) determine position information related to a position of the sensor located at the distal end based on the received position signal;
• and
• (iv) combine the received sensor information and corresponding determined position information.