Table 2:
MRI-DWI assessment after DSA in Mie University Hospital from 2002 to 2004 (control group)
| Patient No./Age (y)/Sex | Diagnosis | DSA Study (No. of vessels) | MRI-DWI Study after DSA | High-Intensity Spot on MRI-DWI |
|---|---|---|---|---|
| 1/71/M | Bilateral IC stenosis | 4 | 1 day after | (−) |
| 2/46/F | Unruptured aneurysm | 4 | 1 day after | (+) (1 spot, 2mm) |
| 3/29/F | Dural AVF | 6 | Same day | (−) |
| 4/31/F | Brain tumor | 3 | 6 days after | (−) |
| 5/76/M | Right IC stenosis | 4 | 10 days after | (−) |
| 6/39/M | Brain tumor | 4 | 1 day after | (−) |
| 7/59/F | Brain tumor | 6 | 1 day after | (+) (1 spot, 2mm) |
| 8/56/F | Brain tumor | 4 | Same day | (−) |
| 9/77/F | Unruptured aneurysm | 4 | 1 day after | (−) |
| 10/37/M | Brain tumor | 3 | 5 days after | (−) |
| 11/64/M | Right IC stenosis | 4 | 3 days after | (−) |
| 12/76/F | Right IC stenosis | 4 | 8 days after | (−) |
| 13/77/M | Left IC occlusion | 4 | Same day | (−) |
| 14/49/M | Left MC occlusion | 4 | Same day | (−) |
| 15/59/F | Left IC occlusion | 4 | 1 day after | (−) |
| 16/76/M | Right IC stenosis | 4 | 1 day after | (−) |
| 17/43/F | Unruptured aneurysm | 4 | 4 days after | (+) (2 spots, 2mm) |
| 18/58/M | Left IC stenosis | 4 | 10 days after | (−) |
| 19/53/F | Right VA dissection | 4 | 1 day after | (−) |
| 20/69/M | Right IC stenosis | 4 | 1 day after | (−) |
| 21/48/M | Unruptured aneurysm | 4 | 1 day after | (−) |
| 22/71/M | Right IC stenosis | 4 | 1 day after | (−) |
| 23/74/M | Left IC stenosis, Right IC occlusion | 4 | 1 day after | (−) |
| 24/74/F | Unruptured aneurysm | 4 | 1 day after | (−) |
| 25/59/M | Left VA occlusion | 4 | 1 day after | (−) |
| 26/44/M | Unconsciousness due to hypnotics | 4 | Same day | (−) |
Note:—MRI-DWI indicates magnetic resonance imaging–diffusion weighted imaging; DSA, digital subtraction angiography; within the DSA study column, 4 vessels, bilateral common carotid arteries and bilateral vertebral arteries, and 6 vessels, bilateral internal and external carotid arteries and bilateral vertebral arteries; IC, internal carotid artery; MC, middle cerebral artery; VA, vertebral artery; AVF, arteriovenous fistula. Average age was 58.3 ± 15.3 years.