Abstract: What is described is an apparatus for intravascular pressure measurement, comprising an elongate body and a first pressure sensor. The elongate body includes a proximal portion and a distal portion, the body defines a lumen extending from a proximal end to a distal end of the body, the lumen is sized and shaped to allow the passage of a guidewire therethrough, and the body includes an annular wall extending from the lumen to an outer surface of the body. The first pressure sensor is disposed entirely within the wall of the distal portion of the body, and the pressure sensor includes a sensor cover coupled to the wall. An exterior surface of the sensor cover and the outer surface of the body are substantially aligned.

Abstract: Systems and methods are disclosed for creating aerial messages using multiple aircraft. Each of the aircraft includes a control box located in the aircraft for receiving data from and transmitting data to a software program running on a main computer. The systems and methods employ a wireless network to transmit and receive data between the aircraft and the software program, with each aircraft (or its respective control box) representing a node on the wireless network. Additionally, the systems and methods may operate on remote controlled devices, such as miniature remote controlled aircraft, and may be used to produce colored aerial messages. The systems and methods may be used to create an aerial vapor screen capable of displaying projected images.