1. Date of download: 7/8/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Brain Damage After Coronary Artery Bypass Grafting Arch Neurol. 2002;59(7):1090-1095. doi:10.1001/archneur.59.7.1090 A, An axial T2-weighted localizer image demonstrating the position of the frontal voxel. Representative preoperative (B) and postoperative (C) spectra demonstrate a decline of the NAA/Cr ratio 3 days postoperatively (preoperatively: NAA/Cr ratio, 1.9; Cho/Cr ratio, 0.64; postoperatively: NAA/Cr ratio, 1.3; Cho/Cr ratio, 0.62). This patient revealed a marked decline on test performance for each test on the third postoperative day. NAA indicates N-acetylaspartate; Cr, creatine; and Cho, choline. Figure Legend:

2. Date of download: 7/8/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Brain Damage After Coronary Artery Bypass Grafting Arch Neurol. 2002;59(7):1090-1095. doi:10.1001/archneur.59.7.1090 T2-weighted (upper left) and orthogonal axis diffusion-weighted images at the same level of a 71-year-old man before (A) and 4 days after (B) coronary artery bypass grafting; 2 small new ischemic lesions (arrows) appear in the left frontal lobe postoperatively, which are already visible on the T2-weighted image. The other 3 quadrants show the 3 orthogonal axis images. R indicates right side. Figure Legend:

3. Date of download: 7/8/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Brain Damage After Coronary Artery Bypass Grafting Arch Neurol. 2002;59(7):1090-1095. doi:10.1001/archneur.59.7.1090 T2-weighted (upper left) and orthogonal axis diffusion-weighted images at the same level of a 60-year-old man before (A) and 3 days after (B) coronary artery bypass grafting; an ischemic area appears in the right cerebellar hemisphere (arrow) postoperatively, which is hardly seen on the correspondent T2-weighted image. Seven days later, the patient underwent a follow-up magnetic resonance imaging scan and the lesion was also visible on T2-weighted images. A thorough neurological examination did not show a neurological deficit. The other 3 quadrants show the 3 orthogonal axis images. R indicates right side. Figure Legend:

4. Date of download: 7/8/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Brain Damage After Coronary Artery Bypass Grafting Arch Neurol. 2002;59(7):1090-1095. doi:10.1001/archneur.59.7.1090 Mean ± SD apparent diffusion coefficient (ADC) values before and after surgery, respectively: 1 and 2, left side of the cerebellum; 3 and 4, right side of the cerebellum; 5 and 6, left side of the thalamus; 7 and 8, right side of the thalamus; 9 and 10, left side of the centrum semiovale; and 11 and 12, right side of the centrum semiovale. Significant differences are indicated. Figure Legend:

5. Date of download: 7/8/2016 Copyright © 2016 American Medical Association. All rights reserved. From: Brain Damage After Coronary Artery Bypass Grafting Arch Neurol. 2002;59(7):1090-1095. doi:10.1001/archneur.59.7.1090 Mean ± SD metabolite ratios for NAA/Cr and Cho/Cr before surgery, 3 to 5 days after surgery, and 10 to 14 days after surgery. Significant differences are indicated. NAA indicates N-acetylaspartate; Cr, creatine; and Cho, choline. Figure Legend: