fig5

Figure 5. ¹H MRS showing patient with urea cycle vs. control subject. Single voxel MR spectroscopy (left basal ganglia) shows an elevated glutamine and glutamate peak complex and reduction of myoinositol, choline was mildly depressed. Purple: control; Black: OTCD; MRS: magnetic resonance spectroscopy; OTCD: ornithine transcarbamylase deficiency