Fig 5.

Images of an illustrative case of a 57-year-old man (case 10). Spinal digital subtraction angiography of the right second lumbar artery (A) shows a feeder and enlarged vein. In the C-CTA image (B), the right T12 was misread as the feeder (black arrowhead). Furthermore, in C-CTA at the L2 level, the true feeder from the right second lumbar artery was difficult to differentiate from the blooming artifacts of the neighboring bone. However, in R-CTA (C), the true feeder from the right second lumbar artery was easily detected (white arrow). The window level and width of R-CTA are set to 120 and 240, respectively.