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Architecture of DRGs. The singular right L5 DRG (arrow) and the biganglia right L4 DRG (arrowheads) are clearly demonstrated on the MIP image with an angle of 24° rotated to the right. The dimension of the DRGs on this plane is maximal, and the interference of adjacent vessels could be removed. Whether in biganglia or singular ganglion, a high intensity rim could be noted.
