Figure 2b. Differences in image quality owing to modality and section thickness. (a) Oblique coronal MPR image from MR angiography shows that the artery of Adamkiewicz originates from the radiculomedullary artery at the level of the left 10th-11th intercostal artery. (b, c) Oblique coronal MPR images from CT angiography with a 2-mm (b) and 1-mm (c) section thickness show the artery of Adamkiewicz. The radiculomedullary artery is seen just beneath the vertebra in c (arrow).