X-ray image of a patient's chest whilst undergoing a cardiac catheterisation procedure. The catheter may just be seen as the dark line running vertically from the top centre of the frame. The catheter is running through a vein, having been inserted in the patient's arm, and has reached the area of the heart. At the end of the catheter is a micromenometer, a tiny pressure sensor, that makes pressure observations on either side of a heart valve. The sensor is no larger than the tip of the catheter itself, having been made by the new technology of micromechanics.
Model release not required. Property release not required.