Figure 4e. True thoracoabdominal aortic aneurysm in a 78-year-old man. (a-c) Oblique axial MPR images from CT angiography show the left ninth intercostal artery (arrow in a and b) and the radiculomedullary artery (arrowhead in c). (d) Planning image for the curved MPR image (cf e). (e) Curved MPR image from CT angiography clearly shows continuity of the aorta, intercostal artery, radiculomedullary artery, artery of Adamkiewicz (arrow), and anterior spinal artery.