Premature newborn after umbilical arterial catheter placement Pediatric Imaging Cardiovascular September 30, 2023September 21, 2023 CXR shows the tip of the umbilical arterial catheter to be at the level of the L2 vertebral body. The diagnosis was umbilical arterial catheter malfunction with the tip of the catheter being low in position. Related Published September 30, 2023September 21, 2023